Attachment 368682 Details for Bug 189847 – Updated backtrace

Updated backtrace

backtrace(19).asc (text/plain), 264.16 KB, created by Michael Catanzaro on 2019-05-01 10:21:32 PDT

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Creator: Michael Catanzaro

Created: 2019-05-01 10:21:32 PDT

Size: 264.16 KB

patch

obsolete

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>[Thread debugging using libthread_db enabled]
>Using host libthread_db library "/lib64/libthread_db.so.1".
>Core was generated by `/usr/libexec/webkit2gtk-4.0/WebKitWebProcess 18 50'.
>Program terminated with signal SIGSEGV, Segmentation fault.
>#0  0x00007fbfe2ccc3c8 in WebCore::TreeScope::documentScope (this=<optimized out>) at ../Source/WebCore/dom/TreeScope.h:73
>[Current thread is 1 (Thread 0x7fbfdbf01ac0 (LWP 13833))]
>
>Thread 1 (Thread 0x7fbfdbf01ac0 (LWP 13833)):
>#0  0x00007fbfe2ccc3c8 in WebCore::TreeScope::documentScope (this=<optimized out>) at ../Source/WebCore/dom/TreeScope.h:73
>No locals.
>#1  WebCore::Node::document (this=<optimized out>) at ../Source/WebCore/dom/Node.h:361
>No locals.
>#2  WebKit::WebFullScreenManager::requestExitFullScreen (this=0x7fbfcc206280) at ../Source/WebKit/WebProcess/FullScreen/WebFullScreenManager.cpp:211
>No locals.
>#3  0x00007fbfe29b6b75 in IPC::callMemberFunctionImpl<WebKit::WebFullScreenManager, void (WebKit::WebFullScreenManager::*)(), std::tuple<>>(WebKit::WebFullScreenManager*, void (WebKit::WebFullScreenManager::*)(), std::tuple<>&&, std::integer_sequence<unsigned long>) (args=<synthetic pointer>, function=<optimized out>, object=<optimized out>) at ../Source/WebKit/Platform/IPC/HandleMessage.h:139
>No locals.
>#4  IPC::callMemberFunction<WebKit::WebFullScreenManager, void (WebKit::WebFullScreenManager::*)(), std::tuple<>, std::integer_sequence<unsigned long> >(std::tuple<>&&, WebKit::WebFullScreenManager*, void (WebKit::WebFullScreenManager::*)()) (args=<synthetic pointer>, function=<optimized out>, object=<optimized out>) at ../Source/WebKit/Platform/IPC/HandleMessage.h:47
>No locals.
>#5  IPC::handleMessage<Messages::WebFullScreenManager::RequestExitFullScreen, WebKit::WebFullScreenManager, void (WebKit::WebFullScreenManager::*)()> (decoder=..., function=<optimized out>, object=<optimized out>) at ../Source/WebKit/Platform/IPC/HandleMessage.h:147
>        arguments = <optimized out>
>#6  WebKit::WebFullScreenManager::didReceiveWebFullScreenManagerMessage (this=0x7fbfcc206280, connection=..., decoder=...) at DerivedSources/WebKit/WebFullScreenManagerMessageReceiver.cpp:43
>No locals.
>#7  0x00007fbfe2a827b5 in IPC::MessageReceiverMap::dispatchMessage (this=this@entry=0x55b300995568, connection=..., decoder=...) at ../Source/WebKit/Platform/IPC/MessageReceiverMap.cpp:123
>        messageReceiver = <optimized out>
>#8  0x00007fbfe2cc1feb in WebKit::WebProcess::didReceiveMessage (this=0x55b300995500, connection=..., decoder=...) at ../Source/WebKit/Shared/AuxiliaryProcess.h:76
>No locals.
>#9  0x00007fbfe2a7be24 in IPC::Connection::dispatchMessage (this=0x7fbfcc2e8000, decoder=...) at ../Source/WebKit/Platform/IPC/Connection.cpp:978
>        listenerID = <optimized out>
>        handler = <optimized out>
>#10 0x00007fbfe2a7d3f1 in IPC::Connection::dispatchMessage (this=0x7fbfcc2e8000, message=...) at /usr/include/c++/9/bits/unique_ptr.h:357
>        oldDidReceiveInvalidMessage = false
>#11 0x00007fbfe2a7ddd3 in IPC::Connection::dispatchOneIncomingMessage (this=0x7fbfcc2e8000) at /usr/include/c++/9/bits/move.h:74
>        message = {_M_t = {_M_t = {<std::_Tuple_impl<0, IPC::Decoder*, std::default_delete<IPC::Decoder> >> = {<std::_Tuple_impl<1, std::default_delete<IPC::Decoder> >> = {<std::_Head_base<1, std::default_delete<IPC::Decoder>, true>> = {<std::default_delete<IPC::Decoder>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, IPC::Decoder*, false>> = {_M_head_impl = 0x0}, <No data fields>}, <No data fields>}}}
>#12 0x00007fbfe0cc9bdc in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#13 WTF::RunLoop::performWork (this=0x7fbfcc2fa000) at ../Source/WTF/wtf/RunLoop.cpp:123
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbfcc2e7820}, <No data fields>}, <No data fields>}}}}
>        functionsHandled = 3
>        functionsToHandle = 4
>#14 0x00007fbfe0d13cbd in WTF::RunLoop::<lambda(gpointer)>::operator() (__closure=0x0, userData=<optimized out>) at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:68
>No locals.
>#15 WTF::RunLoop::<lambda(gpointer)>::_FUN(gpointer) () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:70
>No locals.
>#16 0x00007fbfe1323fd0 in g_main_dispatch (context=0x55b300927df0) at ../glib/gmain.c:3189
>        dispatch = <optimized out>
>        prev_source = 0x0
>        was_in_call = 0
>        user_data = 0x7fbfcc2fa000
>        callback = 0x7fbfe0d13cb0 <WTF::RunLoop::<lambda(gpointer)>::_FUN(gpointer)>
>        cb_funcs = 0x7fbfe13f6280 <g_source_callback_funcs>
>        cb_data = 0x55b300ab03a0
>        need_destroy = <optimized out>
>        source = 0x55b300a63710
>        current = 0x55b300927eb0
>        i = 0
>        __FUNCTION__ = "g_main_dispatch"
>#17 g_main_context_dispatch (context=context@entry=0x55b300927df0) at ../glib/gmain.c:3854
>No locals.
>#18 0x00007fbfe1324368 in g_main_context_iterate (context=0x55b300927df0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3927
>        max_priority = 100
>        timeout = 0
>        some_ready = 1
>        nfds = <optimized out>
>        allocated_nfds = 6
>        fds = 0x55b3014c6de0
>#19 0x00007fbfe13246b3 in g_main_loop_run (loop=0x55b3009ba570) at ../glib/gmain.c:4123
>        self = <optimized out>
>        __FUNCTION__ = "g_main_loop_run"
>#20 0x00007fbfe0d14720 in WTF::RunLoop::run () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:96
>        runLoop = @0x7fbfcc2fa000: {<WTF::FunctionDispatcher> = {<WTF::ThreadSafeRefCounted<WTF::FunctionDispatcher, (WTF::DestructionThread)0>> = {<WTF::ThreadSafeRefCountedBase> = {m_refCount = {<std::__atomic_base<unsigned int>> = {static _S_alignment = 4, _M_i = 21}, <No data fields>}}, <No data fields>}, _vptr.FunctionDispatcher = 0x7fbfe0fcbdc0 <vtable for WTF::RunLoop+16>}, m_functionQueueLock = {static isHeldBit = 1 '\001', static hasParkedBit = 2 '\002', m_byte = {value = {<std::__atomic_base<unsigned char>> = {static _S_alignment = 1, _M_i = 0 '\000'}, <No data fields>}}}, m_functionQueue = {m_start = 518, m_end = 518, m_buffer = {<WTF::VectorBufferBase<WTF::Function<void()> >> = {m_buffer = 0x7fbfbdc8e600, m_capacity = 659, m_size = 0}, <No data fields>}}, m_mainContext = {m_ptr = 0x55b300927df0}, m_mainLoops = {<WTF::VectorBuffer<WTF::GRefPtr<_GMainLoop>, 0>> = {<WTF::VectorBufferBase<WTF::GRefPtr<_GMainLoop> >> = {m_buffer = 0x7fbfcc2fd180, m_capacity = 16, m_size = 1}, <No data fields>}, <No data fields>}, m_source = {m_ptr = 0x55b300a63710}}
>        mainContext = 0x55b300927df0
>        innermostLoop = 0x55b3009ba570
>        nestedMainLoop = <optimized out>
>#21 0x00007fbfe2e5e27a in WebKit::AuxiliaryProcessMain<WebKit::WebProcess, WebKit::WebProcessMain> (argc=3, argv=<optimized out>) at ../Source/WebKit/Shared/unix/AuxiliaryProcessMain.h:47
>        auxiliaryMain = {<WebKit::AuxiliaryProcessMainBase> = {_vptr.AuxiliaryProcessMainBase = 0x7fbfe4fc59c0 <vtable for WebKit::WebProcessMain+16>, m_parameters = {uiProcessName = {static MaxLength = 2147483647, m_impl = {static isRefPtr = <optimized out>, m_ptr = 0x0}}, clientIdentifier = {static MaxLength = 2147483647, m_impl = {static isRefPtr = <optimized out>, m_ptr = 0x0}}, processIdentifier = {<WTF::constexpr_Optional_base<WTF::ObjectIdentifier<WebCore::ProcessIdentifierType> >> = {init_ = true, storage_ = {dummy_ = 18 '\022', value_ = {<WTF::ObjectIdentifierBase> = {<No data fields>}, m_identifier = 18}}}, <No data fields>}, connectionIdentifier = 50, extraInitializationData = {m_impl = {static m_maxLoad = 2, static m_minLoad = 6, m_table = 0x0, m_tableSize = 0, m_tableSizeMask = 0, m_keyCount = 0, m_deletedCount = 0}}, processType = WebKit::AuxiliaryProcess::ProcessType::WebContent}}, <No data fields>}
>#22 0x00007fbfe20d5f33 in __libc_start_main (main=0x55b2ffa6b900 <main(int, char**)>, argc=3, argv=0x7fffb9031ef8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffb9031ee8) at ../csu/libc-start.c:308
>        self = <optimized out>
>        result = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 7930877267909726495, 94227281656160, 140736297377520, 0, 0, 4218377035312714015, 4182183296541970719}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7fffb9031f18, 0x7fbfe51f8150}, data = {prev = 0x0, cleanup = 0x0, canceltype = -1190977768}}}
>        not_first_call = <optimized out>
>#23 0x000055b2ffa6b98e in _start ()
>No symbol table info available.
>
>Thread 2 (Thread 0x7fbfcde24700 (LWP 13837)):
>#0  0x00007fbfe21a22b7 in __GI___poll (fds=0x55b300f89930, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
>        resultvar = 18446744073709551100
>        sc_cancel_oldtype = 0
>        sc_ret = <optimized out>
>#1  0x00007fbfe13242de in g_main_context_poll (priority=<optimized out>, n_fds=4, fds=0x55b300f89930, timeout=<optimized out>, context=0x7fbfc000d400) at ../glib/gmain.c:4228
>        ret = <optimized out>
>        errsv = <optimized out>
>        poll_func = 0x7fbfe1333ef0 <g_poll>
>        poll_func = <optimized out>
>        ret = <optimized out>
>        errsv = <optimized out>
>#2  g_main_context_iterate (context=0x7fbfc000d400, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
>        max_priority = 2147483647
>        timeout = -1
>        some_ready = <optimized out>
>        nfds = 4
>        allocated_nfds = 4
>        fds = 0x55b300f89930
>#3  0x00007fbfe13246b3 in g_main_loop_run (loop=0x7fbfc000d4f0) at ../glib/gmain.c:4123
>        self = <optimized out>
>        __FUNCTION__ = "g_main_loop_run"
>#4  0x00007fbfe156aafa in gdbus_shared_thread_func (user_data=0x7fbfc000d3d0) at ../gio/gdbusprivate.c:275
>        data = 0x7fbfc000d3d0
>#5  0x00007fbfe134d752 in g_thread_proxy (data=0x55b300921ed0) at ../glib/gthread.c:805
>        thread = 0x55b300921ed0
>        __FUNCTION__ = "g_thread_proxy"
>#6  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140461769639680, -4218221837731311329, 140461778905374, 140461778905375, 140461778905520, 140461769636928, 4182232522055930143, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#7  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 3 (Thread 0x7fbfcd623700 (LWP 13838)):
>#0  0x00007fbfe21a22b7 in __GI___poll (fds=0x55b300934aa0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
>        resultvar = 18446744073709551100
>        sc_cancel_oldtype = 0
>        sc_ret = <optimized out>
>#1  0x00007fbfe13242de in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x55b300934aa0, timeout=<optimized out>, context=0x55b300934c90) at ../glib/gmain.c:4228
>        ret = <optimized out>
>        errsv = <optimized out>
>        poll_func = 0x7fbfe1333ef0 <g_poll>
>        poll_func = <optimized out>
>        ret = <optimized out>
>        errsv = <optimized out>
>#2  g_main_context_iterate (context=context@entry=0x55b300934c90, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
>        max_priority = 2147483647
>        timeout = -1
>        some_ready = <optimized out>
>        nfds = 1
>        allocated_nfds = 1
>        fds = 0x55b300934aa0
>#3  0x00007fbfe1324413 in g_main_context_iteration (context=context@entry=0x55b300934c90, may_block=may_block@entry=1) at ../glib/gmain.c:3988
>        retval = <optimized out>
>#4  0x00007fbfcdeb5a9d in dconf_gdbus_worker_thread (user_data=0x55b300934c90) at ../gdbus/dconf-gdbus-thread.c:82
>        context = 0x55b300934c90
>#5  0x00007fbfe134d752 in g_thread_proxy (data=0x55b300921c50) at ../glib/gthread.c:805
>        thread = 0x55b300921c50
>        __FUNCTION__ = "g_thread_proxy"
>#6  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140461761246976, -4218221837731311329, 140736297375342, 140736297375343, 140736297375488, 140461761244224, 4182233622104428831, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#7  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 4 (Thread 0x7fbfccb7e700 (LWP 13842)):
>#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fbfccb7daf0, expected=0, futex_word=0x7fbfccbe09e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
>        __ret = -516
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg6 = <optimized out>
>        __arg5 = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a6 = <optimized out>
>        _a5 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x7fbfccb7daf0, mutex=0x55b300a6bb90, cond=0x7fbfccbe09c0) at pthread_cond_wait.c:539
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbfccb7da50, __canceltype = -860366208, __prev = 0x0}
>        cbuffer = {wseq = 4, cond = 0x7fbfccbe09c0, mutex = 0x55b300a6bb90, private = 0}
>        err = <optimized out>
>        g = 0
>        flags = 0
>        g1_start = <optimized out>
>        maxspin = 0
>        signals = <optimized out>
>        result = 0
>        wseq = 4
>        seq = 2
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_timedwait (cond=0x7fbfccbe09c0, mutex=0x55b300a6bb90, abstime=0x7fbfccb7daf0) at pthread_cond_wait.c:667
>No locals.
>#3  0x00007fbfe0d23ec9 in __gthread_cond_timedwait (__abs_timeout=0x7fbfccb7daf0, __mutex=0x55b300a6bb90, __cond=0x7fbfccbe09c0) at /usr/include/c++/9/x86_64-redhat-linux/bits/gthr-default.h:872
>No locals.
>#4  std::condition_variable::__wait_until_impl<std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (__atime=..., __lock=<synthetic pointer>..., this=0x7fbfccbe09c0) at /usr/include/c++/9/condition_variable:188
>        __s = <optimized out>
>        __ns = <optimized out>
>        __ts = {tv_sec = 1556727090, tv_nsec = 522207423}
>        __s = <optimized out>
>        __ns = <optimized out>
>        __ts = <optimized out>
>#5  std::condition_variable::wait_until<std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (__atime=..., __lock=<synthetic pointer>..., this=0x7fbfccbe09c0) at /usr/include/c++/9/condition_variable:108
>No locals.
>#6  std::_V2::condition_variable_any::wait_until<std::unique_lock<bmalloc::Mutex>, std::chrono::_V2::system_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (__atime=..., __lock=<synthetic pointer>..., this=0x7fbfccbe09c0) at /usr/include/c++/9/condition_variable:296
>        __mutex = {<std::__shared_ptr<std::mutex, (__gnu_cxx::_Lock_policy)2>> = {<std::__shared_ptr_access<std::mutex, (__gnu_cxx::_Lock_policy)2, false, false>> = {<No data fields>}, _M_ptr = <optimized out>, _M_refcount = {_M_pi = 0x55b300a6bb80}}, <No data fields>}
>        __my_lock = {_M_device = 0x0, _M_owns = false}
>        __unlock = <optimized out>
>        __my_lock2 = <optimized out>
>        __mutex = <optimized out>
>        __my_lock = <optimized out>
>        __unlock = <optimized out>
>        __my_lock2 = <optimized out>
>#7  std::_V2::condition_variable_any::wait_until<std::unique_lock<bmalloc::Mutex>, std::chrono::_V2::system_clock, std::chrono::duration<long int, std::ratio<1, 1000000000> >, bmalloc::Scavenger::threadRunLoop()::<lambda()> > (__p=..., __atime=..., __lock=<synthetic pointer>..., this=0x7fbfccbe09c0) at /usr/include/c++/9/condition_variable:307
>No locals.
>#8  std::_V2::condition_variable_any::wait_for<std::unique_lock<bmalloc::Mutex>, long int, std::ratio<1, 1000>, bmalloc::Scavenger::threadRunLoop()::<lambda()> > (__p=..., __rtime=..., __lock=<synthetic pointer>..., this=0x7fbfccbe09c0) at /usr/include/c++/9/condition_variable:322
>No locals.
>#9  bmalloc::Scavenger::threadRunLoop (this=0x7fbfccbe09a8) at ../Source/bmalloc/bmalloc/Scavenger.cpp:387
>        lock = {_M_device = 0x7fbfccbe09b9, _M_owns = false}
>        freeableMemory = <optimized out>
>        scavengeMode = <optimized out>
>#10 0x00007fbfe0d2408f in bmalloc::Scavenger::threadEntryPoint (scavenger=<optimized out>) at ../Source/bmalloc/bmalloc/Scavenger.cpp:361
>No locals.
>#11 0x00007fbfdeac8304 in ?? () from /lib64/libstdc++.so.6
>No symbol table info available.
>#12 0x0000000000000000 in ?? ()
>No symbol table info available.
>
>Thread 5 (Thread 0x7fbfbf7fe700 (LWP 13844)):
>#0  0x00007fbfe21a22b7 in __GI___poll (fds=0x7fbf68002ac0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
>        resultvar = 18446744073709551100
>        sc_cancel_oldtype = 0
>        sc_ret = <optimized out>
>#1  0x00007fbfe13242de in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fbf68002ac0, timeout=<optimized out>, context=0x7fbf68000b20) at ../glib/gmain.c:4228
>        ret = <optimized out>
>        errsv = <optimized out>
>        poll_func = 0x7fbfe1333ef0 <g_poll>
>        poll_func = <optimized out>
>        ret = <optimized out>
>        errsv = <optimized out>
>#2  g_main_context_iterate (context=0x7fbf68000b20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
>        max_priority = 2147483647
>        timeout = -1
>        some_ready = <optimized out>
>        nfds = 1
>        allocated_nfds = 1
>        fds = 0x7fbf68002ac0
>#3  0x00007fbfe13246b3 in g_main_loop_run (loop=0x7fbf68001d00) at ../glib/gmain.c:4123
>        self = <optimized out>
>        __FUNCTION__ = "g_main_loop_run"
>#4  0x00007fbfe0d14720 in WTF::RunLoop::run () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:96
>        runLoop = @0x7fbfcc2f1000: {<WTF::FunctionDispatcher> = {<WTF::ThreadSafeRefCounted<WTF::FunctionDispatcher, (WTF::DestructionThread)0>> = {<WTF::ThreadSafeRefCountedBase> = {m_refCount = {<std::__atomic_base<unsigned int>> = {static _S_alignment = 4, _M_i = 1}, <No data fields>}}, <No data fields>}, _vptr.FunctionDispatcher = 0x7fbfe0fcbdc0 <vtable for WTF::RunLoop+16>}, m_functionQueueLock = {static isHeldBit = 1 '\001', static hasParkedBit = 2 '\002', m_byte = {value = {<std::__atomic_base<unsigned char>> = {static _S_alignment = 1, _M_i = 0 '\000'}, <No data fields>}}}, m_functionQueue = {m_start = 0, m_end = 0, m_buffer = {<WTF::VectorBufferBase<WTF::Function<void()> >> = {m_buffer = 0x0, m_capacity = 0, m_size = 0}, <No data fields>}}, m_mainContext = {m_ptr = 0x7fbf68000b20}, m_mainLoops = {<WTF::VectorBuffer<WTF::GRefPtr<_GMainLoop>, 0>> = {<WTF::VectorBufferBase<WTF::GRefPtr<_GMainLoop> >> = {m_buffer = 0x7fbfcc2f0000, m_capacity = 16, m_size = 1}, <No data fields>}, <No data fields>}, m_source = {m_ptr = 0x7fbf68001d20}}
>        mainContext = 0x7fbf68000b20
>        innermostLoop = 0x7fbf68001d00
>        nestedMainLoop = <optimized out>
>#5  0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#6  WTF::Thread::entryPoint (newThreadContext=0x7fbfcc2fa0a0) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbfcc2f8060}, <No data fields>}, <No data fields>}}}}
>#7  0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#8  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140461528311552, -4218221837731311329, 140736297376478, 140736297376479, 140736297376624, 140461528308800, 4182334878642786591, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#9  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 6 (Thread 0x7fbfcef1d700 (LWP 13835)):
>#0  0x00007fbfe21a22b7 in __GI___poll (fds=0x55b30091eab0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
>        resultvar = 18446744073709551100
>        sc_cancel_oldtype = 0
>        sc_ret = <optimized out>
>#1  0x00007fbfe13242de in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x55b30091eab0, timeout=<optimized out>, context=0x55b300920f00) at ../glib/gmain.c:4228
>        ret = <optimized out>
>        errsv = <optimized out>
>        poll_func = 0x7fbfe1333ef0 <g_poll>
>        poll_func = <optimized out>
>        ret = <optimized out>
>        errsv = <optimized out>
>#2  g_main_context_iterate (context=context@entry=0x55b300920f00, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
>        max_priority = 2147483647
>        timeout = -1
>        some_ready = <optimized out>
>        nfds = 2
>        allocated_nfds = 2
>        fds = 0x55b30091eab0
>#3  0x00007fbfe1324413 in g_main_context_iteration (context=0x55b300920f00, may_block=may_block@entry=1) at ../glib/gmain.c:3988
>        retval = <optimized out>
>#4  0x00007fbfe1324461 in glib_worker_main (data=<optimized out>) at ../glib/gmain.c:5868
>No locals.
>#5  0x00007fbfe134d752 in g_thread_proxy (data=0x55b300921400) at ../glib/gthread.c:805
>        thread = 0x55b300921400
>        __FUNCTION__ = "g_thread_proxy"
>#6  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140461787436800, -4218221837731311329, 140736297375838, 140736297375839, 140736297375984, 140461787434048, 4182226079068115231, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#7  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 7 (Thread 0x7fbf110fc700 (LWP 13955)):
>#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fbf110fb970, expected=0, futex_word=0x7fbf1298a060) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
>        __ret = -516
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg6 = <optimized out>
>        __arg5 = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a6 = <optimized out>
>        _a5 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x7fbf110fb970, mutex=0x7fbf1298a010, cond=0x7fbf1298a038) at pthread_cond_wait.c:539
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbf110fb8f0, __canceltype = 286243120, __prev = 0x0}
>        cbuffer = {wseq = 152, cond = 0x7fbf1298a038, mutex = 0x7fbf1298a010, private = 0}
>        err = <optimized out>
>        g = 0
>        flags = 0
>        g1_start = <optimized out>
>        maxspin = 0
>        signals = <optimized out>
>        result = 0
>        wseq = 152
>        seq = 76
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_timedwait (cond=0x7fbf1298a038, mutex=0x7fbf1298a010, abstime=0x7fbf110fb970) at pthread_cond_wait.c:667
>No locals.
>#3  0x00007fbfe0d154ff in WTF::ThreadCondition::timedWait (this=this@entry=0x7fbf1298a038, mutex=..., absoluteTime=...) at ../Source/WTF/wtf/ThreadingPrimitives.h:74
>        rawSeconds = 1556727098.1286302
>        timeSeconds = 1556727098
>        timeNanoseconds = 128630161
>        targetTime = {tv_sec = 1556727098, tv_nsec = 128630161}
>#4  0x00007fbfe0cc72c3 in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) (address=address@entry=0x7fbf43e2ccd3, validation=..., beforeSleep=..., timeout=...) at ../Source/WTF/wtf/ParkingLot.cpp:596
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf1298a010}
>        me = <optimized out>
>        enqueueResult = <optimized out>
>        didGetDequeued = <optimized out>
>        didDequeue = <optimized out>
>        result = <optimized out>
>#5  0x00007fbfe0cb421e in WTF::ParkingLot::parkConditionally<WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1}, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2}>(void const*, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1} const&, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2} const&, WTF::TimeWithDynamicClockType const&) (timeout=..., beforeSleep=..., validation=..., address=0x7fbf43e2ccd3) at ../Source/WTF/wtf/ScopedLambda.h:187
>No locals.
>#6  WTF::Condition::waitUntil<WTF::Lock> (timeout=..., lock=..., this=0x7fbf43e2ccd3) at ../Source/WTF/wtf/Condition.h:75
>        result = <optimized out>
>        result = <optimized out>
>#7  WTF::Condition::waitFor<WTF::Lock> (relativeTimeout=..., lock=..., this=0x7fbf43e2ccd3) at ../Source/WTF/wtf/Condition.h:115
>No locals.
>#8  WTF::AutomaticThread::<lambda()>::operator() (__closure=<optimized out>) at ../Source/WTF/wtf/AutomaticThread.cpp:208
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbfcc2fc01c}
>        result = <optimized out>
>        thread = {static isRefPtr = <optimized out>, m_ptr = 0x7fbf43e2cca8}
>        stopImpl = <optimized out>
>        stopPermanently = {__this = 0x7fbf43e2cca8, __stopImpl = <synthetic pointer><error reading variable>}
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        thread = <optimized out>
>        stopImpl = <optimized out>
>        stopPermanently = <optimized out>
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = <optimized out>
>#9  WTF::Function<void()>::CallableWrapper<WTF::AutomaticThread::start(const WTF::AbstractLocker&)::<lambda()> >::call(void) (this=0x7fbf129af240) at ../Source/WTF/wtf/Function.h:102
>No locals.
>#10 0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#11 WTF::Thread::entryPoint (newThreadContext=0x7fbf129a91e0) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbf129af240}, <No data fields>}, <No data fields>}}}}
>#12 0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#13 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140458601727744, -4218221837731311329, 140736297371534, 140736297371535, 140736297371680, 140458601724992, 4182717642906980639, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#14 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 8 (Thread 0x7fbfce6fb700 (LWP 13950)):
>#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fbfce6fa970, expected=0, futex_word=0x7fbf129a1064) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
>        __ret = -516
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg6 = <optimized out>
>        __arg5 = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a6 = <optimized out>
>        _a5 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x7fbfce6fa970, mutex=0x7fbf129a1010, cond=0x7fbf129a1038) at pthread_cond_wait.c:539
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbfce6fa8f0, __canceltype = -831542992, __prev = 0x0}
>        cbuffer = {wseq = 203, cond = 0x7fbf129a1038, mutex = 0x7fbf129a1010, private = 0}
>        err = <optimized out>
>        g = 1
>        flags = 0
>        g1_start = <optimized out>
>        maxspin = 0
>        signals = <optimized out>
>        result = 0
>        wseq = 203
>        seq = 101
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_timedwait (cond=0x7fbf129a1038, mutex=0x7fbf129a1010, abstime=0x7fbfce6fa970) at pthread_cond_wait.c:667
>No locals.
>#3  0x00007fbfe0d154ff in WTF::ThreadCondition::timedWait (this=this@entry=0x7fbf129a1038, mutex=..., absoluteTime=...) at ../Source/WTF/wtf/ThreadingPrimitives.h:74
>        rawSeconds = 1556727098.1286302
>        timeSeconds = 1556727098
>        timeNanoseconds = 128630161
>        targetTime = {tv_sec = 1556727098, tv_nsec = 128630161}
>#4  0x00007fbfe0cc72c3 in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) (address=address@entry=0x7fbf43e2cb6b, validation=..., beforeSleep=..., timeout=...) at ../Source/WTF/wtf/ParkingLot.cpp:596
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf129a1010}
>        me = <optimized out>
>        enqueueResult = <optimized out>
>        didGetDequeued = <optimized out>
>        didDequeue = <optimized out>
>        result = <optimized out>
>#5  0x00007fbfe0cb421e in WTF::ParkingLot::parkConditionally<WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1}, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2}>(void const*, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1} const&, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2} const&, WTF::TimeWithDynamicClockType const&) (timeout=..., beforeSleep=..., validation=..., address=0x7fbf43e2cb6b) at ../Source/WTF/wtf/ScopedLambda.h:187
>No locals.
>#6  WTF::Condition::waitUntil<WTF::Lock> (timeout=..., lock=..., this=0x7fbf43e2cb6b) at ../Source/WTF/wtf/Condition.h:75
>        result = <optimized out>
>        result = <optimized out>
>#7  WTF::Condition::waitFor<WTF::Lock> (relativeTimeout=..., lock=..., this=0x7fbf43e2cb6b) at ../Source/WTF/wtf/Condition.h:115
>No locals.
>#8  WTF::AutomaticThread::<lambda()>::operator() (__closure=<optimized out>) at ../Source/WTF/wtf/AutomaticThread.cpp:208
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbfcc2fc01c}
>        result = <optimized out>
>        thread = {static isRefPtr = <optimized out>, m_ptr = 0x7fbf43e2cb40}
>        stopImpl = <optimized out>
>        stopPermanently = {__this = 0x7fbf43e2cb40, __stopImpl = <synthetic pointer><error reading variable>}
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        thread = <optimized out>
>        stopImpl = <optimized out>
>        stopPermanently = <optimized out>
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = <optimized out>
>#9  WTF::Function<void()>::CallableWrapper<WTF::AutomaticThread::start(const WTF::AbstractLocker&)::<lambda()> >::call(void) (this=0x7fbf129af1c8) at ../Source/WTF/wtf/Function.h:102
>No locals.
>#10 0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#11 WTF::Thread::entryPoint (newThreadContext=0x7fbf129a9050) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbf129af1c8}, <No data fields>}, <No data fields>}}}}
>#12 0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#13 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140461778908928, -4218221837731311329, 140736297371534, 140736297371535, 140736297371680, 140461778906176, 4182226986379956511, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#14 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 9 (Thread 0x7fbfbeffd700 (LWP 13845)):
>#0  0x00007fbfe21a22b7 in __GI___poll (fds=0x7fbf6c002ef0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
>        resultvar = 18446744073709551100
>        sc_cancel_oldtype = 0
>        sc_ret = <optimized out>
>#1  0x00007fbfe13242de in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fbf6c002ef0, timeout=<optimized out>, context=0x7fbf6c000b20) at ../glib/gmain.c:4228
>        ret = <optimized out>
>        errsv = <optimized out>
>        poll_func = 0x7fbfe1333ef0 <g_poll>
>        poll_func = <optimized out>
>        ret = <optimized out>
>        errsv = <optimized out>
>#2  g_main_context_iterate (context=0x7fbf6c000b20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
>        max_priority = 2147483647
>        timeout = -1
>        some_ready = <optimized out>
>        nfds = 1
>        allocated_nfds = 1
>        fds = 0x7fbf6c002ef0
>#3  0x00007fbfe13246b3 in g_main_loop_run (loop=0x7fbf6c001d00) at ../glib/gmain.c:4123
>        self = <optimized out>
>        __FUNCTION__ = "g_main_loop_run"
>#4  0x00007fbfe0d14720 in WTF::RunLoop::run () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:96
>        runLoop = @0x7fbfcc2ec000: {<WTF::FunctionDispatcher> = {<WTF::ThreadSafeRefCounted<WTF::FunctionDispatcher, (WTF::DestructionThread)0>> = {<WTF::ThreadSafeRefCountedBase> = {m_refCount = {<std::__atomic_base<unsigned int>> = {static _S_alignment = 4, _M_i = 1}, <No data fields>}}, <No data fields>}, _vptr.FunctionDispatcher = 0x7fbfe0fcbdc0 <vtable for WTF::RunLoop+16>}, m_functionQueueLock = {static isHeldBit = 1 '\001', static hasParkedBit = 2 '\002', m_byte = {value = {<std::__atomic_base<unsigned char>> = {static _S_alignment = 1, _M_i = 0 '\000'}, <No data fields>}}}, m_functionQueue = {m_start = 0, m_end = 0, m_buffer = {<WTF::VectorBufferBase<WTF::Function<void()> >> = {m_buffer = 0x0, m_capacity = 0, m_size = 0}, <No data fields>}}, m_mainContext = {m_ptr = 0x7fbf6c000b20}, m_mainLoops = {<WTF::VectorBuffer<WTF::GRefPtr<_GMainLoop>, 0>> = {<WTF::VectorBufferBase<WTF::GRefPtr<_GMainLoop> >> = {m_buffer = 0x7fbfcc2eb000, m_capacity = 16, m_size = 1}, <No data fields>}, <No data fields>}, m_source = {m_ptr = 0x7fbf6c001d20}}
>        mainContext = 0x7fbf6c000b20
>        innermostLoop = 0x7fbf6c001d00
>        nestedMainLoop = <optimized out>
>#5  0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#6  WTF::Thread::entryPoint (newThreadContext=0x7fbfcc2fa0f0) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbfcc2f8090}, <No data fields>}, <No data fields>}}}}
>#7  0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#8  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140461519918848, -4218221837731311329, 140736297376478, 140736297376479, 140736297376624, 140461519916096, 4182331580644774175, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#9  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 10 (Thread 0x7fbf52dfd700 (LWP 13926)):
>#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
>No locals.
>#1  0x00007fbfe137018e in g_cond_wait_until (cond=cond@entry=0x55b30090a3b8, mutex=mutex@entry=0x55b30090a3b0, end_time=end_time@entry=446860820) at ../glib/gthread-posix.c:1460
>        now = {tv_sec = 431, tv_nsec = 860820796}
>        span = {tv_sec = 14, tv_nsec = 999999204}
>        sampled = 2
>        res = <optimized out>
>#2  0x00007fbfe12f5011 in g_async_queue_pop_intern_unlocked (queue=queue@entry=0x55b30090a3b0, wait=wait@entry=1, end_time=end_time@entry=446860820) at ../glib/gasyncqueue.c:422
>        retval = <optimized out>
>        __FUNCTION__ = "g_async_queue_pop_intern_unlocked"
>#3  0x00007fbfe12f5646 in g_async_queue_timeout_pop (queue=0x55b30090a3b0, timeout=timeout@entry=15000000) at ../glib/gasyncqueue.c:545
>        end_time = 446860820
>        retval = <optimized out>
>        __FUNCTION__ = "g_async_queue_timeout_pop"
>#4  0x00007fbfe134e229 in g_thread_pool_wait_for_new_pool () at ../glib/gthreadpool.c:168
>        pool = <optimized out>
>        local_max_idle_time = 15000
>        local_wakeup_thread_serial = <optimized out>
>        local_max_unused_threads = <optimized out>
>        last_wakeup_thread_serial = 0
>        have_relayed_thread_marker = <optimized out>
>        pool = <optimized out>
>        local_wakeup_thread_serial = <optimized out>
>        local_max_unused_threads = <optimized out>
>        local_max_idle_time = <optimized out>
>        last_wakeup_thread_serial = <optimized out>
>        have_relayed_thread_marker = <optimized out>
>#5  g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:365
>        free_pool = <optimized out>
>        task = <optimized out>
>        pool = <optimized out>
>#6  0x00007fbfe134d752 in g_thread_proxy (data=0x55b300921f20) at ../glib/gthread.c:805
>        thread = 0x55b300921f20
>        __FUNCTION__ = "g_thread_proxy"
>#7  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140459705882368, -4218221837731311329, 140461778905326, 140461778905327, 140461778905472, 140459705879616, 4182568800278466847, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#8  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 11 (Thread 0x7fbeedffb700 (LWP 13969)):
>#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fbef40135e0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
>        __ret = -512
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fbef4013590, cond=0x7fbef40135b8) at pthread_cond_wait.c:502
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbeedffab00, __canceltype = 0, __prev = 0x0}
>        cbuffer = {wseq = 0, cond = 0x7fbef40135b8, mutex = 0x7fbef4013590, private = 0}
>        rt = <optimized out>
>        err = <optimized out>
>        g = 0
>        flags = <optimized out>
>        g1_start = <optimized out>
>        signals = <optimized out>
>        result = 0
>        wseq = 0
>        seq = 0
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_wait (cond=0x7fbef40135b8, mutex=0x7fbef4013590) at pthread_cond_wait.c:655
>No locals.
>#3  0x00007fbefca3e1cc in thread_loop (ptr=0x7fbef402e330) at vpx_util/vpx_thread.c:38
>        worker = 0x7fbef402e330
>        done = 0
>#4  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140458013472512, -4218221837731311329, 140458280856142, 140458280856143, 140458280856144, 140458013469760, 4181599302679449887, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#5  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 12 (Thread 0x7fbf777fc700 (LWP 13848)):
>#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55b300989728) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
>        __ret = -512
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55b3009896d8, cond=0x55b300989700) at pthread_cond_wait.c:502
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbf777fba00, __canceltype = 0, __prev = 0x0}
>        cbuffer = {wseq = 0, cond = 0x55b300989700, mutex = 0x55b3009896d8, private = 0}
>        rt = <optimized out>
>        err = <optimized out>
>        g = 0
>        flags = <optimized out>
>        g1_start = <optimized out>
>        signals = <optimized out>
>        result = 0
>        wseq = 0
>        seq = 0
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_wait (cond=0x55b300989700, mutex=0x55b3009896d8) at pthread_cond_wait.c:655
>No locals.
>#3  0x00007fbfbd33954b in ?? () from /usr/lib64/dri/i965_dri.so
>No symbol table info available.
>#4  0x0000000000000000 in ?? ()
>No symbol table info available.
>
>Thread 13 (Thread 0x7fbeee7fc700 (LWP 13968)):
>#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fbef4015a60) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
>        __ret = -512
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fbef4015a10, cond=0x7fbef4015a38) at pthread_cond_wait.c:502
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbeee7fbb00, __canceltype = 0, __prev = 0x0}
>        cbuffer = {wseq = 0, cond = 0x7fbef4015a38, mutex = 0x7fbef4015a10, private = 0}
>        rt = <optimized out>
>        err = <optimized out>
>        g = 0
>        flags = <optimized out>
>        g1_start = <optimized out>
>        signals = <optimized out>
>        result = 0
>        wseq = 0
>        seq = 0
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_wait (cond=0x7fbef4015a38, mutex=0x7fbef4015a10) at pthread_cond_wait.c:655
>No locals.
>#3  0x00007fbefca3e1cc in thread_loop (ptr=0x7fbef402e300) at vpx_util/vpx_thread.c:38
>        worker = 0x7fbef402e300
>        done = 0
>#4  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140458021865216, -4218221837731311329, 140458280856142, 140458280856143, 140458280856144, 140458021862464, 4181593804584440095, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#5  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 14 (Thread 0x7fbf77ffd700 (LWP 13847)):
>#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x55b30097eee8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
>        __ret = -512
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55b30097ee98, cond=0x55b30097eec0) at pthread_cond_wait.c:502
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbf77ffca00, __canceltype = 0, __prev = 0x0}
>        cbuffer = {wseq = 0, cond = 0x55b30097eec0, mutex = 0x55b30097ee98, private = 0}
>        rt = <optimized out>
>        err = <optimized out>
>        g = 0
>        flags = <optimized out>
>        g1_start = <optimized out>
>        signals = <optimized out>
>        result = 0
>        wseq = 0
>        seq = 0
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_wait (cond=0x55b30097eec0, mutex=0x55b30097ee98) at pthread_cond_wait.c:655
>No locals.
>#3  0x00007fbfbd33954b in ?? () from /usr/lib64/dri/i965_dri.so
>No symbol table info available.
>#4  0x0000000000000000 in ?? ()
>No symbol table info available.
>
>Thread 15 (Thread 0x7fbf118fd700 (LWP 13954)):
>#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fbf118fc970, expected=0, futex_word=0x7fbf1298e060) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
>        __ret = -516
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg6 = <optimized out>
>        __arg5 = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a6 = <optimized out>
>        _a5 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x7fbf118fc970, mutex=0x7fbf1298e010, cond=0x7fbf1298e038) at pthread_cond_wait.c:539
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbf118fc8f0, __canceltype = 294635824, __prev = 0x0}
>        cbuffer = {wseq = 204, cond = 0x7fbf1298e038, mutex = 0x7fbf1298e010, private = 0}
>        err = <optimized out>
>        g = 0
>        flags = 0
>        g1_start = <optimized out>
>        maxspin = 0
>        signals = <optimized out>
>        result = 0
>        wseq = 204
>        seq = 102
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_timedwait (cond=0x7fbf1298e038, mutex=0x7fbf1298e010, abstime=0x7fbf118fc970) at pthread_cond_wait.c:667
>No locals.
>#3  0x00007fbfe0d154ff in WTF::ThreadCondition::timedWait (this=this@entry=0x7fbf1298e038, mutex=..., absoluteTime=...) at ../Source/WTF/wtf/ThreadingPrimitives.h:74
>        rawSeconds = 1556727098.1286252
>        timeSeconds = 1556727098
>        timeNanoseconds = 128625154
>        targetTime = {tv_sec = 1556727098, tv_nsec = 128625154}
>#4  0x00007fbfe0cc72c3 in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) (address=address@entry=0x7fbf43e2cc8b, validation=..., beforeSleep=..., timeout=...) at ../Source/WTF/wtf/ParkingLot.cpp:596
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf1298e010}
>        me = <optimized out>
>        enqueueResult = <optimized out>
>        didGetDequeued = <optimized out>
>        didDequeue = <optimized out>
>        result = <optimized out>
>#5  0x00007fbfe0cb421e in WTF::ParkingLot::parkConditionally<WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1}, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2}>(void const*, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1} const&, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2} const&, WTF::TimeWithDynamicClockType const&) (timeout=..., beforeSleep=..., validation=..., address=0x7fbf43e2cc8b) at ../Source/WTF/wtf/ScopedLambda.h:187
>No locals.
>#6  WTF::Condition::waitUntil<WTF::Lock> (timeout=..., lock=..., this=0x7fbf43e2cc8b) at ../Source/WTF/wtf/Condition.h:75
>        result = <optimized out>
>        result = <optimized out>
>#7  WTF::Condition::waitFor<WTF::Lock> (relativeTimeout=..., lock=..., this=0x7fbf43e2cc8b) at ../Source/WTF/wtf/Condition.h:115
>No locals.
>#8  WTF::AutomaticThread::<lambda()>::operator() (__closure=<optimized out>) at ../Source/WTF/wtf/AutomaticThread.cpp:208
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbfcc2fc01c}
>        result = <optimized out>
>        thread = {static isRefPtr = <optimized out>, m_ptr = 0x7fbf43e2cc60}
>        stopImpl = <optimized out>
>        stopPermanently = {__this = 0x7fbf43e2cc60, __stopImpl = <synthetic pointer><error reading variable>}
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        thread = <optimized out>
>        stopImpl = <optimized out>
>        stopPermanently = <optimized out>
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = <optimized out>
>#9  WTF::Function<void()>::CallableWrapper<WTF::AutomaticThread::start(const WTF::AbstractLocker&)::<lambda()> >::call(void) (this=0x7fbf129af228) at ../Source/WTF/wtf/Function.h:102
>No locals.
>#10 0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#11 WTF::Thread::entryPoint (newThreadContext=0x7fbf129a9190) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbf129af228}, <No data fields>}, <No data fields>}}}}
>#12 0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#13 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140458610120448, -4218221837731311329, 140736297371534, 140736297371535, 140736297371680, 140458610117696, 4182716547153449247, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#14 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 16 (Thread 0x7fbeecff9700 (LWP 13971)):
>#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fbef400d000) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
>        __ret = -512
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fbef400cfb0, cond=0x7fbef400cfd8) at pthread_cond_wait.c:502
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbeecff8b00, __canceltype = 0, __prev = 0x0}
>        cbuffer = {wseq = 0, cond = 0x7fbef400cfd8, mutex = 0x7fbef400cfb0, private = 0}
>        rt = <optimized out>
>        err = <optimized out>
>        g = 0
>        flags = <optimized out>
>        g1_start = <optimized out>
>        signals = <optimized out>
>        result = 0
>        wseq = 0
>        seq = 0
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_wait (cond=0x7fbef400cfd8, mutex=0x7fbef400cfb0) at pthread_cond_wait.c:655
>No locals.
>#3  0x00007fbefca3e1cc in thread_loop (ptr=0x7fbef402e390) at vpx_util/vpx_thread.c:38
>        worker = 0x7fbef402e390
>        done = 0
>#4  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140457996687104, -4218221837731311329, 140458280856142, 140458280856143, 140458280856144, 140457996684352, 4181597104729936159, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#5  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 17 (Thread 0x7fbeebdff700 (LWP 13973)):
>#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fbfc000a028) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
>        __ret = -512
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55b301492a30, cond=0x7fbfc000a000) at pthread_cond_wait.c:502
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbeebdfd950, __canceltype = 0, __prev = 0x0}
>        cbuffer = {wseq = 72, cond = 0x7fbfc000a000, mutex = 0x55b301492a30, private = 0}
>        rt = <optimized out>
>        err = <optimized out>
>        g = 0
>        flags = <optimized out>
>        g1_start = <optimized out>
>        signals = <optimized out>
>        result = 0
>        wseq = 72
>        seq = 36
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_wait (cond=0x7fbfc000a000, mutex=0x55b301492a30) at pthread_cond_wait.c:655
>No locals.
>#3  0x00007fbf761e12ac in ?? () from /lib64/libpulse.so.0
>No symbol table info available.
>#4  0x000055b3014a03f0 in ?? ()
>No symbol table info available.
>#5  0x00007fbf7635ca10 in gst_pulseringbuffer_commit (buf=<optimized out>, sample=0x7fbeebdfdb68, data=0x7fbeea3e4078 "\b", in_samples=<optimized out>, out_samples=<optimized out>, accum=0x7fbeebdfdb60) at pulsesink.c:1585
>        avail = <optimized out>
>        towrite = <optimized out>
>        psink = <optimized out>
>        pbuf = <optimized out>
>        result = <optimized out>
>        data_end = 0x7fbeea3e4f74 "\370\377\362\377"
>        reverse = <optimized out>
>        toprocess = 0x7fbeebdfda4c
>        inr = 959
>        outr = 959
>        bpf = 4
>        offset = <optimized out>
>        bufsize = <optimized out>
>        __func__ = "gst_pulseringbuffer_commit"
>#6  0x00007fbfdf18fa12 in gst_audio_base_sink_render (bsink=0x55b30149b970, buf=0x7fbef809ed80) at gstaudiobasesink.c:2141
>        time = <optimized out>
>        stop = 654500000
>        render_start = 30408
>        render_stop = 31368
>        sample_offset = 30408
>        sync_offset = <optimized out>
>        ts_offset = <optimized out>
>        bclass = <optimized out>
>        sink = 0x55b30149b970
>        ringbuf = 0x55b3014a03f0
>        diff = <optimized out>
>        align = <optimized out>
>        ctime = 634500000
>        cstop = 654500000
>        offset = 0
>        info = {memory = 0x7fbeea3e4000, flags = GST_MAP_READ, data = 0x7fbeea3e4078 "\b", size = 3840, maxsize = 23040, user_data = {0x7fbef809ed80, 0x1, 0x7fbfdf385292 <gst_base_sink_do_sync+834>, 0x7fbeebdfdbd0}, _gst_reserved = {0x7fbeebdfdd24, 0x55b30149b868, 0x7fbeebdfdc20, 0x7fbeebdfdc24}}
>        size = <optimized out>
>        samples = 960
>        written = <optimized out>
>        bpf = 4
>        rate = <optimized out>
>        accum = 0
>        out_samples = 960
>        base_time = <optimized out>
>        render_delay = <optimized out>
>        latency = <optimized out>
>        clock = <optimized out>
>        sync = <optimized out>
>        slaved = <optimized out>
>        align_next = 1
>        ret = <optimized out>
>        clip_seg = {flags = 3957316664, rate = 6.9395461530363685e-310, applied_rate = 6.9395461530367638e-310, format = GST_FORMAT_TIME, base = 140457977830688, offset = 94227309115592, start = 0, stop = 18446744073709551615, time = 0, position = 0, duration = 18446744073709551615, _gst_reserved = {0x2702e0a0, 0x2702e0a0, 0x25d1b3a0, 0x2702e0a0}}
>        time_offset = <optimized out>
>        out = 0x7fbef809ed80
>        __PRETTY_FUNCTION__ = "gst_audio_base_sink_render"
>        _g_boolean_var_ = <optimized out>
>#7  0x00007fbfdf386a12 in gst_base_sink_chain_unlocked (basesink=basesink@entry=0x55b30149b970, obj=obj@entry=0x7fbef809ed80, is_list=is_list@entry=0, pad=<optimized out>) at gstbasesink.c:3649
>        bclass = 0x55b301499440
>        priv = 0x55b30149b780
>        ret = GST_FLOW_OK
>        start = 634500000
>        end = 654500000
>        segment = 0x55b30149bac8
>        sync_buf = 0x7fbef809ed80
>        late = 0
>        step_end = 0
>        prepared = 0
>        __FUNCTION__ = "gst_base_sink_chain_unlocked"
>        __PRETTY_FUNCTION__ = "gst_base_sink_chain_unlocked"
>        _g_boolean_var_ = <optimized out>
>#8  0x00007fbfdf387ad8 in gst_base_sink_chain_main (basesink=0x55b30149b970, pad=<optimized out>, obj=0x7fbef809ed80, is_list=0) at gstbasesink.c:3775
>        result = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_base_sink_chain_main"
>        _g_boolean_var_ = <optimized out>
>#9  0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b3014855e0, type=type@entry=4112, data=data@entry=0x7fbef809ed80) at gstpad.c:4326
>        chainfunc = 0x7fbfdf387c00 <gst_base_sink_chain>
>        ret = <optimized out>
>        parent = 0x55b30149b970
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#10 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b3014585f0, type=type@entry=4112, data=data@entry=0x7fbef809ed80) at gstpad.c:4582
>        peer = 0x55b3014855e0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#11 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x55b3014585f0, buffer=buffer@entry=0x7fbef809ed80) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#12 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbef809ed80) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x55b3014585f0
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#13 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b301456650, type=type@entry=4112, data=data@entry=0x7fbef809ed80) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x55b300e08240
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#14 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b301484110, type=type@entry=4112, data=data@entry=0x7fbef809ed80) at gstpad.c:4582
>        peer = 0x55b301456650
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#15 0x00007fbfdf288b33 in gst_pad_push (pad=0x55b301484110, buffer=0x7fbef809ed80) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#16 0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x55b301482b70, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x55b301482b70
>        klass = 0x55b301480610
>        priv = 0x55b301482aa0
>        ret = <optimized out>
>        position = 654500000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbef809ed80
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#17 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b301455d80, type=type@entry=4112, data=data@entry=0x7fbef809ed80) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x55b301482b70
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#18 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b301455690, type=type@entry=4112, data=data@entry=0x7fbef809ed80) at gstpad.c:4582
>        peer = 0x55b301455d80
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#19 0x00007fbfdf288b33 in gst_pad_push (pad=0x55b301455690, buffer=0x7fbef809ed80) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#20 0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x55b30147f670, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x55b30147f670
>        klass = 0x55b301479ca0
>        priv = 0x55b30147f5a0
>        ret = <optimized out>
>        position = 654500000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbef809ed80
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#21 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b301455440, type=type@entry=4112, data=data@entry=0x7fbef809ed80) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x55b30147f670
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#22 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b3014845b0, type=type@entry=4112, data=data@entry=0x7fbef809ed80) at gstpad.c:4582
>        peer = 0x55b301455440
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#23 0x00007fbfdf288b33 in gst_pad_push (pad=0x55b3014845b0, buffer=0x7fbef809ed80) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#24 0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x55b301487610, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x55b301487610
>        klass = 0x55b301486cf0
>        priv = 0x55b301487540
>        ret = <optimized out>
>        position = 654500000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbef809ed80
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#25 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b301484360, type=type@entry=4112, data=data@entry=0x7fbef809ed80) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x55b301487610
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#26 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b301455b30, type=type@entry=4112, data=data@entry=0x7fbef809ed80) at gstpad.c:4582
>        peer = 0x55b301484360
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#27 0x00007fbfdf288b33 in gst_pad_push (pad=0x55b301455b30, buffer=0x7fbef809ed80) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#28 0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x55b301482430, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x55b301482430
>        klass = 0x55b301480610
>        priv = 0x55b301482360
>        ret = <optimized out>
>        position = 654500000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbef809ed80
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#29 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b3014558e0, type=type@entry=4112, data=data@entry=0x7fbef809ed80) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x55b301482430
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#30 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b3014551f0, type=type@entry=4112, data=data@entry=0x7fbef809ed80) at gstpad.c:4582
>        peer = 0x55b3014558e0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#31 0x00007fbfdf288b33 in gst_pad_push (pad=0x55b3014551f0, buffer=0x7fbef809ed80) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#32 0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x55b30147ee40, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x55b30147ee40
>        klass = 0x55b301479ca0
>        priv = 0x55b30147ed70
>        ret = <optimized out>
>        position = 654500000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbef809ed80
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#33 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b301454fa0, type=type@entry=4112, data=data@entry=0x7fbef809ed80) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x55b30147ee40
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#34 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b301454d50, type=type@entry=4112, data=data@entry=0x7fbef809ed80) at gstpad.c:4582
>        peer = 0x55b301454fa0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#35 0x00007fbfdf288b33 in gst_pad_push (pad=0x55b301454d50, buffer=buffer@entry=0x7fbef809ed80) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#36 0x00007fbf763ce494 in gst_queue_push_one (queue=0x55b30147a010) at gstqueue.c:1384
>        buffer = 0x7fbef809ed80
>        data = <optimized out>
>        is_list = <optimized out>
>        result = <optimized out>
>        result = <optimized out>
>        data = <optimized out>
>        is_list = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_queue_push_one"
>        buffer = <optimized out>
>        subbuffer = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        buffer_list = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        event = <optimized out>
>        type = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        query = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        event = <optimized out>
>        type = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        query = <optimized out>
>        ret = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        ret = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        ret = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#37 gst_queue_loop (pad=<optimized out>) at gstqueue.c:1537
>        queue = 0x55b30147a010
>        ret = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_queue_loop"
>#38 0x00007fbfdf2b6e57 in gst_task_func (task=0x7fbef800f4d0) at gsttask.c:328
>        lock = 0x55b301454dc0
>        tself = 0x7fbf4c006de0
>        priv = 0x7fbef800f480
>        __PRETTY_FUNCTION__ = "gst_task_func"
>#39 0x00007fbfe134e184 in g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:308
>        task = 0x7fbf48590230
>        pool = 0x55b300ac7700
>#40 0x00007fbfe134d752 in g_thread_proxy (data=0x7fbf4c006de0) at ../glib/gthread.c:805
>        thread = 0x7fbf4c006de0
>        __FUNCTION__ = "g_thread_proxy"
>#41 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140457977837312, -4218221837731311329, 140458297636286, 140458297636287, 140458297636432, 140457977834560, 4181603427995537695, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#42 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 18 (Thread 0x7fbf53dff700 (LWP 13924)):
>#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fbf53dfe970, expected=0, futex_word=0x7fbf56679264) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
>        __ret = -516
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg6 = <optimized out>
>        __arg5 = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a6 = <optimized out>
>        _a5 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x7fbf53dfe970, mutex=0x7fbf56679210, cond=0x7fbf56679238) at pthread_cond_wait.c:539
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbf53dfe8f0, __canceltype = 1407183152, __prev = 0x0}
>        cbuffer = {wseq = 567, cond = 0x7fbf56679238, mutex = 0x7fbf56679210, private = 0}
>        err = <optimized out>
>        g = 1
>        flags = 0
>        g1_start = <optimized out>
>        maxspin = 0
>        signals = <optimized out>
>        result = 0
>        wseq = 567
>        seq = 283
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_timedwait (cond=0x7fbf56679238, mutex=0x7fbf56679210, abstime=0x7fbf53dfe970) at pthread_cond_wait.c:667
>No locals.
>#3  0x00007fbfe0d154ff in WTF::ThreadCondition::timedWait (this=this@entry=0x7fbf56679238, mutex=..., absoluteTime=...) at ../Source/WTF/wtf/ThreadingPrimitives.h:74
>        rawSeconds = 1556727098.5949211
>        timeSeconds = 1556727098
>        timeNanoseconds = 594921112
>        targetTime = {tv_sec = 1556727098, tv_nsec = 594921112}
>#4  0x00007fbfe0cc72c3 in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) (address=address@entry=0x7fbfcc242693, validation=..., beforeSleep=..., timeout=...) at ../Source/WTF/wtf/ParkingLot.cpp:596
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf56679210}
>        me = <optimized out>
>        enqueueResult = <optimized out>
>        didGetDequeued = <optimized out>
>        didDequeue = <optimized out>
>        result = <optimized out>
>#5  0x00007fbfe0cb421e in WTF::ParkingLot::parkConditionally<WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1}, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2}>(void const*, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1} const&, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2} const&, WTF::TimeWithDynamicClockType const&) (timeout=..., beforeSleep=..., validation=..., address=0x7fbfcc242693) at ../Source/WTF/wtf/ScopedLambda.h:187
>No locals.
>#6  WTF::Condition::waitUntil<WTF::Lock> (timeout=..., lock=..., this=0x7fbfcc242693) at ../Source/WTF/wtf/Condition.h:75
>        result = <optimized out>
>        result = <optimized out>
>#7  WTF::Condition::waitFor<WTF::Lock> (relativeTimeout=..., lock=..., this=0x7fbfcc242693) at ../Source/WTF/wtf/Condition.h:115
>No locals.
>#8  WTF::AutomaticThread::<lambda()>::operator() (__closure=<optimized out>) at ../Source/WTF/wtf/AutomaticThread.cpp:208
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf5669e224}
>        result = <optimized out>
>        thread = {static isRefPtr = <optimized out>, m_ptr = 0x7fbfcc242668}
>        stopImpl = <optimized out>
>        stopPermanently = {__this = 0x7fbfcc242668, __stopImpl = <synthetic pointer><error reading variable>}
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        thread = <optimized out>
>        stopImpl = <optimized out>
>        stopPermanently = <optimized out>
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = <optimized out>
>#9  WTF::Function<void()>::CallableWrapper<WTF::AutomaticThread::start(const WTF::AbstractLocker&)::<lambda()> >::call(void) (this=0x7fbf56694360) at ../Source/WTF/wtf/Function.h:102
>No locals.
>#10 0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#11 WTF::Thread::entryPoint (newThreadContext=0x7fbfcc2064b0) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbf56694360}, <No data fields>}, <No data fields>}}}}
>#12 0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#13 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140459722667776, -4218221837731311329, 140736297369870, 140736297369871, 140736297370016, 140459722665024, 4182570998227980575, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#14 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 19 (Thread 0x7fbf32bff700 (LWP 13948)):
>#0  0x00007fbfe21a22b7 in __GI___poll (fds=0x7fbf2c0025e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
>        resultvar = 18446744073709551100
>        sc_cancel_oldtype = 0
>        sc_ret = <optimized out>
>#1  0x00007fbfe13242de in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fbf2c0025e0, timeout=<optimized out>, context=0x7fbf2c000b20) at ../glib/gmain.c:4228
>        ret = <optimized out>
>        errsv = <optimized out>
>        poll_func = 0x7fbfe1333ef0 <g_poll>
>        poll_func = <optimized out>
>        ret = <optimized out>
>        errsv = <optimized out>
>#2  g_main_context_iterate (context=0x7fbf2c000b20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
>        max_priority = 2147483647
>        timeout = -1
>        some_ready = <optimized out>
>        nfds = 1
>        allocated_nfds = 1
>        fds = 0x7fbf2c0025e0
>#3  0x00007fbfe13246b3 in g_main_loop_run (loop=0x7fbf2c0024a0) at ../glib/gmain.c:4123
>        self = <optimized out>
>        __FUNCTION__ = "g_main_loop_run"
>#4  0x00007fbfe0d14720 in WTF::RunLoop::run () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:96
>        runLoop = @0x7fbf33807000: {<WTF::FunctionDispatcher> = {<WTF::ThreadSafeRefCounted<WTF::FunctionDispatcher, (WTF::DestructionThread)0>> = {<WTF::ThreadSafeRefCountedBase> = {m_refCount = {<std::__atomic_base<unsigned int>> = {static _S_alignment = 4, _M_i = 1}, <No data fields>}}, <No data fields>}, _vptr.FunctionDispatcher = 0x7fbfe0fcbdc0 <vtable for WTF::RunLoop+16>}, m_functionQueueLock = {static isHeldBit = 1 '\001', static hasParkedBit = 2 '\002', m_byte = {value = {<std::__atomic_base<unsigned char>> = {static _S_alignment = 1, _M_i = 0 '\000'}, <No data fields>}}}, m_functionQueue = {m_start = 2, m_end = 2, m_buffer = {<WTF::VectorBufferBase<WTF::Function<void()> >> = {m_buffer = 0x7fbf3381d780, m_capacity = 16, m_size = 0}, <No data fields>}}, m_mainContext = {m_ptr = 0x7fbf2c000b20}, m_mainLoops = {<WTF::VectorBuffer<WTF::GRefPtr<_GMainLoop>, 0>> = {<WTF::VectorBufferBase<WTF::GRefPtr<_GMainLoop> >> = {m_buffer = 0x7fbf33806000, m_capacity = 16, m_size = 1}, <No data fields>}, <No data fields>}, m_source = {m_ptr = 0x7fbf2c0024c0}}
>        mainContext = 0x7fbf2c000b20
>        innermostLoop = 0x7fbf2c0024a0
>        nestedMainLoop = <optimized out>
>#5  0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#6  WTF::Thread::entryPoint (newThreadContext=0x7fbf33877820) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbf33838d80}, <No data fields>}, <No data fields>}}}}
>#7  0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#8  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140459166922496, -4218221837731311329, 140736297351998, 140736297351999, 140736297352144, 140459166919744, 4182639992582623519, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#9  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 20 (Thread 0x7fbeeffff700 (LWP 13965)):
>#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fbef40255e4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
>        __ret = -512
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fbef4025590, cond=0x7fbef40255b8) at pthread_cond_wait.c:502
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbeefffeb00, __canceltype = 440, __prev = 0x0}
>        cbuffer = {wseq = 71, cond = 0x7fbef40255b8, mutex = 0x7fbef4025590, private = 0}
>        rt = <optimized out>
>        err = <optimized out>
>        g = 1
>        flags = <optimized out>
>        g1_start = <optimized out>
>        signals = <optimized out>
>        result = 0
>        wseq = 71
>        seq = 35
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_wait (cond=0x7fbef40255b8, mutex=0x7fbef4025590) at pthread_cond_wait.c:655
>No locals.
>#3  0x00007fbefca3e1cc in thread_loop (ptr=0x7fbef402e270) at vpx_util/vpx_thread.c:38
>        worker = 0x7fbef402e270
>        done = 0
>#4  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140458047043328, -4218221837731311329, 140458280856142, 140458280856143, 140458280856144, 140458047040576, 4181594906780422431, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#5  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 21 (Thread 0x7fbf100fa700 (LWP 13958)):
>#0  0x00007fbfe21a22b7 in __GI___poll (fds=0x7fbf48594d00, nfds=3, timeout=195) at ../sysdeps/unix/sysv/linux/poll.c:29
>        resultvar = 18446744073709551100
>        sc_cancel_oldtype = 0
>        sc_ret = <optimized out>
>#1  0x00007fbf761e0cc6 in ?? () from /lib64/libpulse.so.0
>No symbol table info available.
>#2  0x00000000ffffffff in ?? ()
>No symbol table info available.
>#3  0x0000000000000000 in ?? ()
>No symbol table info available.
>
>Thread 22 (Thread 0x7fbf431ff700 (LWP 13944)):
>#0  0x00007fbfe21a22b7 in __GI___poll (fds=0x7fbf3c0025e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
>        resultvar = 18446744073709551100
>        sc_cancel_oldtype = 0
>        sc_ret = <optimized out>
>#1  0x00007fbfe13242de in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fbf3c0025e0, timeout=<optimized out>, context=0x7fbf3c000b20) at ../glib/gmain.c:4228
>        ret = <optimized out>
>        errsv = <optimized out>
>        poll_func = 0x7fbfe1333ef0 <g_poll>
>        poll_func = <optimized out>
>        ret = <optimized out>
>        errsv = <optimized out>
>#2  g_main_context_iterate (context=0x7fbf3c000b20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
>        max_priority = 2147483647
>        timeout = -1
>        some_ready = <optimized out>
>        nfds = 1
>        allocated_nfds = 1
>        fds = 0x7fbf3c0025e0
>#3  0x00007fbfe13246b3 in g_main_loop_run (loop=0x7fbf3c0024a0) at ../glib/gmain.c:4123
>        self = <optimized out>
>        __FUNCTION__ = "g_main_loop_run"
>#4  0x00007fbfe0d14720 in WTF::RunLoop::run () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:96
>        runLoop = @0x7fbf43487000: {<WTF::FunctionDispatcher> = {<WTF::ThreadSafeRefCounted<WTF::FunctionDispatcher, (WTF::DestructionThread)0>> = {<WTF::ThreadSafeRefCountedBase> = {m_refCount = {<std::__atomic_base<unsigned int>> = {static _S_alignment = 4, _M_i = 1}, <No data fields>}}, <No data fields>}, _vptr.FunctionDispatcher = 0x7fbfe0fcbdc0 <vtable for WTF::RunLoop+16>}, m_functionQueueLock = {static isHeldBit = 1 '\001', static hasParkedBit = 2 '\002', m_byte = {value = {<std::__atomic_base<unsigned char>> = {static _S_alignment = 1, _M_i = 0 '\000'}, <No data fields>}}}, m_functionQueue = {m_start = 0, m_end = 0, m_buffer = {<WTF::VectorBufferBase<WTF::Function<void()> >> = {m_buffer = 0x0, m_capacity = 0, m_size = 0}, <No data fields>}}, m_mainContext = {m_ptr = 0x7fbf3c000b20}, m_mainLoops = {<WTF::VectorBuffer<WTF::GRefPtr<_GMainLoop>, 0>> = {<WTF::VectorBufferBase<WTF::GRefPtr<_GMainLoop> >> = {m_buffer = 0x7fbf43486000, m_capacity = 16, m_size = 1}, <No data fields>}, <No data fields>}, m_source = {m_ptr = 0x7fbf3c0024c0}}
>        mainContext = 0x7fbf3c000b20
>        innermostLoop = 0x7fbf3c0024a0
>        nestedMainLoop = <optimized out>
>#5  0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#6  WTF::Thread::entryPoint (newThreadContext=0x7fbf51a8fe10) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbf43489030}, <No data fields>}, <No data fields>}}}}
>#7  0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#8  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140459441649408, -4218221837731311329, 140736297370286, 140736297370287, 140736297370432, 140459441646656, 4182537463123333407, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#9  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 23 (Thread 0x7fbf120fe700 (LWP 13953)):
>#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fbf120fd970, expected=0, futex_word=0x7fbf12999064) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
>        __ret = -516
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg6 = <optimized out>
>        __arg5 = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a6 = <optimized out>
>        _a5 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x7fbf120fd970, mutex=0x7fbf12999010, cond=0x7fbf12999038) at pthread_cond_wait.c:539
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbf120fd8f0, __canceltype = 303028528, __prev = 0x0}
>        cbuffer = {wseq = 167, cond = 0x7fbf12999038, mutex = 0x7fbf12999010, private = 0}
>        err = <optimized out>
>        g = 1
>        flags = 0
>        g1_start = <optimized out>
>        maxspin = 0
>        signals = <optimized out>
>        result = 0
>        wseq = 167
>        seq = 83
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_timedwait (cond=0x7fbf12999038, mutex=0x7fbf12999010, abstime=0x7fbf120fd970) at pthread_cond_wait.c:667
>No locals.
>#3  0x00007fbfe0d154ff in WTF::ThreadCondition::timedWait (this=this@entry=0x7fbf12999038, mutex=..., absoluteTime=...) at ../Source/WTF/wtf/ThreadingPrimitives.h:74
>        rawSeconds = 1556727098.128623
>        timeSeconds = 1556727098
>        timeNanoseconds = 128623008
>        targetTime = {tv_sec = 1556727098, tv_nsec = 128623008}
>#4  0x00007fbfe0cc72c3 in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) (address=address@entry=0x7fbf43e2cc43, validation=..., beforeSleep=..., timeout=...) at ../Source/WTF/wtf/ParkingLot.cpp:596
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf12999010}
>        me = <optimized out>
>        enqueueResult = <optimized out>
>        didGetDequeued = <optimized out>
>        didDequeue = <optimized out>
>        result = <optimized out>
>#5  0x00007fbfe0cb421e in WTF::ParkingLot::parkConditionally<WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1}, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2}>(void const*, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1} const&, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2} const&, WTF::TimeWithDynamicClockType const&) (timeout=..., beforeSleep=..., validation=..., address=0x7fbf43e2cc43) at ../Source/WTF/wtf/ScopedLambda.h:187
>No locals.
>#6  WTF::Condition::waitUntil<WTF::Lock> (timeout=..., lock=..., this=0x7fbf43e2cc43) at ../Source/WTF/wtf/Condition.h:75
>        result = <optimized out>
>        result = <optimized out>
>#7  WTF::Condition::waitFor<WTF::Lock> (relativeTimeout=..., lock=..., this=0x7fbf43e2cc43) at ../Source/WTF/wtf/Condition.h:115
>No locals.
>#8  WTF::AutomaticThread::<lambda()>::operator() (__closure=<optimized out>) at ../Source/WTF/wtf/AutomaticThread.cpp:208
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbfcc2fc01c}
>        result = <optimized out>
>        thread = {static isRefPtr = <optimized out>, m_ptr = 0x7fbf43e2cc18}
>        stopImpl = <optimized out>
>        stopPermanently = {__this = 0x7fbf43e2cc18, __stopImpl = <synthetic pointer><error reading variable>}
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        thread = <optimized out>
>        stopImpl = <optimized out>
>        stopPermanently = <optimized out>
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = <optimized out>
>#9  WTF::Function<void()>::CallableWrapper<WTF::AutomaticThread::start(const WTF::AbstractLocker&)::<lambda()> >::call(void) (this=0x7fbf129af210) at ../Source/WTF/wtf/Function.h:102
>No locals.
>#10 0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#11 WTF::Thread::entryPoint (newThreadContext=0x7fbf129a9140) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbf129af210}, <No data fields>}, <No data fields>}}}}
>#12 0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#13 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140458618513152, -4218221837731311329, 140736297371534, 140736297371535, 140736297371680, 140458618510400, 4182711049058439455, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#14 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 24 (Thread 0x7fbeec7f8700 (LWP 13972)):
>#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fbf15885060) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
>        __ret = -512
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fbf15885010, cond=0x7fbf15885038) at pthread_cond_wait.c:502
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbeec7f63e0, __canceltype = -327195616, __prev = 0x0}
>        cbuffer = {wseq = 36, cond = 0x7fbf15885038, mutex = 0x7fbf15885010, private = 0}
>        rt = <optimized out>
>        err = <optimized out>
>        g = 0
>        flags = <optimized out>
>        g1_start = <optimized out>
>        signals = <optimized out>
>        result = 0
>        wseq = 36
>        seq = 18
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_wait (cond=0x7fbf15885038, mutex=0x7fbf15885010) at pthread_cond_wait.c:655
>No locals.
>#3  0x00007fbfe0d1552b in WTF::ThreadCondition::timedWait (this=this@entry=0x7fbf15885038, mutex=..., absoluteTime=...) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:528
>        rawSeconds = <optimized out>
>        timeSeconds = <optimized out>
>        timeNanoseconds = <optimized out>
>        targetTime = {tv_sec = 1556727088, tv_nsec = 629946}
>#4  0x00007fbfe0cc72c3 in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) (address=address@entry=0x7fbf42082432, validation=..., beforeSleep=..., timeout=...) at ../Source/WTF/wtf/ParkingLot.cpp:596
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf15885010}
>        me = <optimized out>
>        enqueueResult = <optimized out>
>        didGetDequeued = <optimized out>
>        didDequeue = <optimized out>
>        result = <optimized out>
>#5  0x00007fbfe4496a2c in WTF::ParkingLot::parkConditionally<WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1}, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2}>(void const*, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1} const&, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2} const&, WTF::TimeWithDynamicClockType const&) (timeout=..., beforeSleep=..., validation=..., address=0x7fbf42082432) at DerivedSources/ForwardingHeaders/wtf/ScopedLambda.h:187
>No locals.
>#6  WTF::Condition::waitUntil<WTF::Lock> (timeout=..., lock=..., this=0x7fbf42082432) at DerivedSources/ForwardingHeaders/wtf/Condition.h:75
>        result = <optimized out>
>        result = <optimized out>
>#7  WTF::Condition::wait<WTF::Lock> (lock=..., this=0x7fbf42082432) at DerivedSources/ForwardingHeaders/wtf/Condition.h:121
>No locals.
>#8  WebCore::MediaPlayerPrivateGStreamerBase::triggerRepaint (this=0x7fbf420823c0, sample=<optimized out>) at ../Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamerBase.cpp:796
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf42082433}
>        triggerResize = <optimized out>
>        __FUNCTION__ = "triggerRepaint"
>#9  0x00007fbfde369b28 in ffi_call_unix64 () at ../src/x86/unix64.S:76
>No locals.
>#10 0x00007fbfde369339 in ffi_call (cif=cif@entry=0x7fbeec7f67b0, fn=fn@entry=0x7fbfe4496b50 <WebCore::MediaPlayerPrivateGStreamerBase::repaintCallback(WebCore::MediaPlayerPrivateGStreamerBase*, _GstSample*)>, rvalue=<optimized out>, avalue=avalue@entry=0x7fbeec7f6700) at ../src/x86/ffi64.c:525
>        classes = {X86_64_INTEGER_CLASS, 32702, 3967772496, 32702}
>        stack = <optimized out>
>        argp = 0x7fbeec7f6600 ""
>        arg_types = <optimized out>
>        gprcount = 3
>        ssecount = <optimized out>
>        ngpr = 1
>        nsse = 0
>        i = <optimized out>
>        avn = <optimized out>
>        ret_in_memory = <optimized out>
>        reg_args = <optimized out>
>#11 0x00007fbfe140c23c in g_cclosure_marshal_generic (closure=closure@entry=0x55b3014787f0, return_gvalue=return_gvalue@entry=0x0, n_param_values=n_param_values@entry=2, param_values=param_values@entry=0x7fbeec7f69d0, invocation_hint=invocation_hint@entry=0x7fbeec7f6950, marshal_data=marshal_data@entry=0x0) at ../gobject/gclosure.c:1500
>        rtype = <optimized out>
>        rvalue = 0x7fbeec7f6740
>        n_args = <optimized out>
>        atypes = <optimized out>
>        args = <optimized out>
>        i = <optimized out>
>        cif = {abi = FFI_UNIX64, nargs = 3, arg_types = 0x7fbeec7f6720, rtype = 0x7fbfde36a180 <ffi_type_void>, bytes = 0, flags = 0}
>        cc = 0x55b3014787f0
>        enum_tmpval = 0x7fbeec7f6750
>        tmpval_used = 0
>#12 0x00007fbfe140b742 in g_closure_invoke (closure=0x55b3014787f0, return_value=0x0, n_param_values=2, param_values=0x7fbeec7f69d0, invocation_hint=0x7fbeec7f6950) at ../gobject/gclosure.c:810
>        marshal = 0x7fbfe140bd90 <g_cclosure_marshal_generic>
>        marshal_data = 0x0
>        in_marshal = 0
>        real_closure = 0x55b3014787d0
>        __FUNCTION__ = "g_closure_invoke"
>#13 0x00007fbfe141f4b4 in signal_emit_unlocked_R (node=node@entry=0x55b301052d60, detail=detail@entry=0, instance=instance@entry=0x55b301478350, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fbeec7f69d0) at ../gobject/gsignal.c:3635
>        tmp = <optimized out>
>        handler = 0x7fbfc000b780
>        accumulator = 0x0
>        emission = {next = 0x0, instance = 0x55b301478350, ihint = {signal_id = 285, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
>        class_closure = 0x0
>        hlist = <optimized out>
>        handler_list = 0x7fbfc000b780
>        return_accu = 0x0
>        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
>        signal_id = 285
>        max_sequential_handler_number = 216
>        return_value_altered = 0
>#14 0x00007fbfe142834d in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fbeec7f6bb0) at ../gobject/gsignal.c:3391
>        instance_and_params = 0x7fbeec7f69d0
>        signal_return_type = <optimized out>
>        param_values = 0x7fbeec7f69e8
>        node = <optimized out>
>        i = <optimized out>
>        n_params = <optimized out>
>        __FUNCTION__ = "g_signal_emit_valist"
>#15 0x00007fbfe1428973 in g_signal_emit (instance=instance@entry=0x55b301478350, signal_id=<optimized out>, detail=detail@entry=0) at ../gobject/gsignal.c:3447
>        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fbeec7f6c90, reg_save_area = 0x7fbeec7f6bd0}}
>#16 0x00007fbfe4499c28 in webkitVideoSinkRepaintRequested (sample=<optimized out>, sink=0x55b301478350) at ../Source/WebCore/platform/graphics/gstreamer/VideoSinkGStreamer.cpp:153
>No locals.
>#17 VideoRenderRequestScheduler::requestRender (buffer=<optimized out>, sink=0x55b301478350, this=0x55b301478090) at ../Source/WebCore/platform/graphics/gstreamer/VideoSinkGStreamer.cpp:103
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x0}
>        sample = <optimized out>
>        locker = <optimized out>
>        sample = <optimized out>
>#18 webkitVideoSinkRender (baseSink=<optimized out>, buffer=<optimized out>) at ../Source/WebCore/platform/graphics/gstreamer/VideoSinkGStreamer.cpp:177
>        sink = 0x55b301478350
>#19 0x00007fbfdf386a12 in gst_base_sink_chain_unlocked (basesink=basesink@entry=0x55b301478350, obj=obj@entry=0x7fbef80a4240, is_list=is_list@entry=0, pad=<optimized out>) at gstbasesink.c:3649
>        bclass = 0x55b301489370
>        priv = 0x55b301478160
>        ret = GST_FLOW_OK
>        start = 480000000
>        end = 520000000
>        segment = 0x55b3014784a8
>        sync_buf = 0x7fbef80a4240
>        late = 0
>        step_end = 0
>        prepared = 0
>        __FUNCTION__ = "gst_base_sink_chain_unlocked"
>        __PRETTY_FUNCTION__ = "gst_base_sink_chain_unlocked"
>        _g_boolean_var_ = <optimized out>
>#20 0x00007fbfdf387ad8 in gst_base_sink_chain_main (basesink=0x55b301478350, pad=<optimized out>, obj=0x7fbef80a4240, is_list=0) at gstbasesink.c:3775
>        result = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_base_sink_chain_main"
>        _g_boolean_var_ = <optimized out>
>#21 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b301484a50, type=type@entry=4112, data=data@entry=0x7fbef80a4240) at gstpad.c:4326
>        chainfunc = 0x7fbfdf387c00 <gst_base_sink_chain>
>        ret = <optimized out>
>        parent = 0x55b301478350
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#22 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef8022ac0, type=type@entry=4112, data=data@entry=0x7fbef80a4240) at gstpad.c:4582
>        peer = 0x55b301484a50
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#23 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x7fbef8022ac0, buffer=buffer@entry=0x7fbef80a4240) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#24 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbef80a4240) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x7fbef8022ac0
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#25 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef40093d0, type=type@entry=4112, data=data@entry=0x7fbef80a4240) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x7fbef8022ac0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#26 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef8064140, type=type@entry=4112, data=data@entry=0x7fbef80a4240) at gstpad.c:4582
>        peer = 0x7fbef40093d0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#27 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbef8064140, buffer=0x7fbef80a4240) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#28 0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x7fbef805de20, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x7fbef805de20
>        klass = 0x7fbef8016b50
>        priv = 0x7fbef805dd50
>        ret = <optimized out>
>        position = 520000000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbef80a4240
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#29 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef802bcf0, type=type@entry=4112, data=data@entry=0x7fbf4c0b4ea0) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x7fbef805de20
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#30 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef802b160, type=type@entry=4112, data=data@entry=0x7fbf4c0b4ea0) at gstpad.c:4582
>        peer = 0x7fbef802bcf0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#31 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbef802b160, buffer=0x7fbf4c0b4ea0) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#32 0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x7fbef8032ce0, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x7fbef8032ce0
>        klass = 0x7fbef802f370
>        priv = 0x7fbef8032c10
>        ret = <optimized out>
>        position = 520000000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbf4c0b4ea0
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#33 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef802af10, type=type@entry=4112, data=data@entry=0x7fbf4c0b4ea0) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x7fbef8032ce0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#34 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef802b3b0, type=type@entry=4112, data=data@entry=0x7fbf4c0b4ea0) at gstpad.c:4582
>        peer = 0x7fbef802af10
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#35 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbef802b3b0, buffer=0x7fbf4c0b4ea0) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#36 0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x7fbef80558a0, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x7fbef80558a0
>        klass = 0x7fbef8055230
>        priv = 0x7fbef80557d0
>        ret = <optimized out>
>        position = 520000000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbf4c0b4ea0
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#37 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef802b600, type=type@entry=4112, data=data@entry=0x7fbf4c0b4ea0) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x7fbef80558a0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#38 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef802b850, type=type@entry=4112, data=data@entry=0x7fbf4c0b4ea0) at gstpad.c:4582
>        peer = 0x7fbef802b600
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#39 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbef802b850, buffer=0x7fbf4c0b4ea0) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#40 0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x7fbef80542d0, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x7fbef80542d0
>        klass = 0x7fbef8016b50
>        priv = 0x7fbef8054200
>        ret = <optimized out>
>        position = 520000000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbf4c0b4ea0
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#41 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef802baa0, type=type@entry=4112, data=data@entry=0x7fbf4c0b4ea0) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x7fbef80542d0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#42 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef4009170, type=type@entry=4112, data=data@entry=0x7fbf4c0b4ea0) at gstpad.c:4582
>        peer = 0x7fbef802baa0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#43 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x7fbef4009170, buffer=buffer@entry=0x7fbf4c0b4ea0) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#44 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbf4c0b4ea0) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x7fbef4009170
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#45 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef8022840, type=type@entry=4112, data=data@entry=0x7fbf4c0b4ea0) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x55b3014b4960
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#46 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef802a820, type=type@entry=4112, data=data@entry=0x7fbf4c0b4ea0) at gstpad.c:4582
>        peer = 0x7fbef8022840
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#47 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbef802a820, buffer=buffer@entry=0x7fbf4c0b4ea0) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#48 0x00007fbf763ce494 in gst_queue_push_one (queue=0x55b30147bb10) at gstqueue.c:1384
>        buffer = 0x7fbf4c0b4ea0
>        data = <optimized out>
>        is_list = <optimized out>
>        result = <optimized out>
>        result = <optimized out>
>        data = <optimized out>
>        is_list = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_queue_push_one"
>        buffer = <optimized out>
>        subbuffer = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        buffer_list = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        event = <optimized out>
>        type = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        query = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        event = <optimized out>
>        type = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        query = <optimized out>
>        ret = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        ret = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        ret = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#49 gst_queue_loop (pad=<optimized out>) at gstqueue.c:1537
>        queue = 0x55b30147bb10
>        ret = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_queue_loop"
>#50 0x00007fbfdf2b6e57 in gst_task_func (task=0x7fbef800f3b0) at gsttask.c:328
>        lock = 0x7fbef802a890
>        tself = 0x7fbef41349e0
>        priv = 0x7fbef800f360
>        __PRETTY_FUNCTION__ = "gst_task_func"
>#51 0x00007fbfe134e184 in g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:308
>        task = 0x7fbf485902b0
>        pool = 0x55b300ac7700
>#52 0x00007fbfe134d752 in g_thread_proxy (data=0x7fbef41349e0) at ../glib/gthread.c:805
>        thread = 0x7fbef41349e0
>        __FUNCTION__ = "g_thread_proxy"
>#53 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140457988294400, -4218221837731311329, 140458297636654, 140458297636655, 140458297636800, 140457988291648, 4181598200483467551, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#54 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 25 (Thread 0x7fbf128ff700 (LWP 13952)):
>#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fbf128fe970, expected=0, futex_word=0x7fbf43ea2064) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
>        __ret = -516
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg6 = <optimized out>
>        __arg5 = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a6 = <optimized out>
>        _a5 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x7fbf128fe970, mutex=0x7fbf43ea2010, cond=0x7fbf43ea2038) at pthread_cond_wait.c:539
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbf128fe8f0, __canceltype = 311421232, __prev = 0x0}
>        cbuffer = {wseq = 179, cond = 0x7fbf43ea2038, mutex = 0x7fbf43ea2010, private = 0}
>        err = <optimized out>
>        g = 1
>        flags = 0
>        g1_start = <optimized out>
>        maxspin = 0
>        signals = <optimized out>
>        result = 0
>        wseq = 179
>        seq = 89
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_timedwait (cond=0x7fbf43ea2038, mutex=0x7fbf43ea2010, abstime=0x7fbf128fe970) at pthread_cond_wait.c:667
>No locals.
>#3  0x00007fbfe0d154ff in WTF::ThreadCondition::timedWait (this=this@entry=0x7fbf43ea2038, mutex=..., absoluteTime=...) at ../Source/WTF/wtf/ThreadingPrimitives.h:74
>        rawSeconds = 1556727098.1286371
>        timeSeconds = 1556727098
>        timeNanoseconds = 128637075
>        targetTime = {tv_sec = 1556727098, tv_nsec = 128637075}
>#4  0x00007fbfe0cc72c3 in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) (address=address@entry=0x7fbf43e2cbfb, validation=..., beforeSleep=..., timeout=...) at ../Source/WTF/wtf/ParkingLot.cpp:596
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf43ea2010}
>        me = <optimized out>
>        enqueueResult = <optimized out>
>        didGetDequeued = <optimized out>
>        didDequeue = <optimized out>
>        result = <optimized out>
>#5  0x00007fbfe0cb421e in WTF::ParkingLot::parkConditionally<WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1}, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2}>(void const*, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1} const&, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2} const&, WTF::TimeWithDynamicClockType const&) (timeout=..., beforeSleep=..., validation=..., address=0x7fbf43e2cbfb) at ../Source/WTF/wtf/ScopedLambda.h:187
>No locals.
>#6  WTF::Condition::waitUntil<WTF::Lock> (timeout=..., lock=..., this=0x7fbf43e2cbfb) at ../Source/WTF/wtf/Condition.h:75
>        result = <optimized out>
>        result = <optimized out>
>#7  WTF::Condition::waitFor<WTF::Lock> (relativeTimeout=..., lock=..., this=0x7fbf43e2cbfb) at ../Source/WTF/wtf/Condition.h:115
>No locals.
>#8  WTF::AutomaticThread::<lambda()>::operator() (__closure=<optimized out>) at ../Source/WTF/wtf/AutomaticThread.cpp:208
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbfcc2fc01c}
>        result = <optimized out>
>        thread = {static isRefPtr = <optimized out>, m_ptr = 0x7fbf43e2cbd0}
>        stopImpl = <optimized out>
>        stopPermanently = {__this = 0x7fbf43e2cbd0, __stopImpl = <synthetic pointer><error reading variable>}
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        thread = <optimized out>
>        stopImpl = <optimized out>
>        stopPermanently = <optimized out>
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = <optimized out>
>#9  WTF::Function<void()>::CallableWrapper<WTF::AutomaticThread::start(const WTF::AbstractLocker&)::<lambda()> >::call(void) (this=0x7fbf129af1f8) at ../Source/WTF/wtf/Function.h:102
>No locals.
>#10 0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#11 WTF::Thread::entryPoint (newThreadContext=0x7fbf129a90f0) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbf129af1f8}, <No data fields>}, <No data fields>}}}}
>#12 0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#13 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140458626905856, -4218221837731311329, 140736297371534, 140736297371535, 140736297371680, 140458626903104, 4182709949009940767, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#14 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 26 (Thread 0x7fbefe6fd700 (LWP 13963)):
>#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
>No locals.
>#1  0x00007fbfe1370073 in g_cond_wait (cond=cond@entry=0x55b3014c1f00, mutex=mutex@entry=0x55b3014c1f10) at ../glib/gthread-posix.c:1413
>        sampled = 10
>#2  0x00007fbfdf3d0547 in gst_app_src_create (bsrc=0x55b3014c20d0, offset=<optimized out>, size=4096, buf=0x7fbefe6fc938) at gstappsrc.c:1279
>        appsrc = <optimized out>
>        priv = 0x55b3014c1f00
>        ret = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_app_src_create"
>        __FUNCTION__ = "gst_app_src_create"
>#3  0x00007fbfdf38a29d in gst_base_src_get_range (src=src@entry=0x55b3014c20d0, offset=offset@entry=1728738, length=<optimized out>, buf=buf@entry=0x7fbefe6fca18) at gstbasesrc.c:2527
>        ret = <optimized out>
>        bclass = 0x55b300ffdb20
>        status = <optimized out>
>        res_buf = 0x0
>        in_buf = 0x0
>        own_res_buf = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_base_src_get_range"
>        _g_boolean_var_ = <optimized out>
>#4  0x00007fbfdf38d37c in gst_base_src_loop (pad=0x55b3014bc0b0) at gstbasesrc.c:2851
>        src = 0x55b3014c20d0
>        buf = 0x0
>        ret = <optimized out>
>        position = <optimized out>
>        eos = 0
>        blocksize = <optimized out>
>        pending_events = 0x0
>        tmp = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_base_src_loop"
>        __FUNCTION__ = "gst_base_src_loop"
>#5  0x00007fbfdf2b6e57 in gst_task_func (task=0x55b301453830) at gsttask.c:328
>        lock = 0x55b3014bc120
>        tself = 0x55b30149db20
>        priv = 0x55b3014537e0
>        __PRETTY_FUNCTION__ = "gst_task_func"
>#6  0x00007fbfe134e184 in g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:308
>        task = 0x7fbf48587260
>        pool = 0x55b300ac7700
>#7  0x00007fbfe134d752 in g_thread_proxy (data=0x55b30149db20) at ../glib/gthread.c:805
>        thread = 0x55b30149db20
>        __FUNCTION__ = "g_thread_proxy"
>#8  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140458289256192, -4218221837731311329, 140736297371134, 140736297371135, 140736297371280, 140458289253440, 4181628855275671839, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#9  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 27 (Thread 0x7fbf108fb700 (LWP 13956)):
>#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fbf108fa970, expected=0, futex_word=0x7fbf12983060) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
>        __ret = -516
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg6 = <optimized out>
>        __arg5 = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a6 = <optimized out>
>        _a5 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x7fbf108fa970, mutex=0x7fbf12983010, cond=0x7fbf12983038) at pthread_cond_wait.c:539
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbf108fa8f0, __canceltype = 277850416, __prev = 0x0}
>        cbuffer = {wseq = 188, cond = 0x7fbf12983038, mutex = 0x7fbf12983010, private = 0}
>        err = <optimized out>
>        g = 0
>        flags = 0
>        g1_start = <optimized out>
>        maxspin = 0
>        signals = <optimized out>
>        result = 0
>        wseq = 188
>        seq = 94
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_timedwait (cond=0x7fbf12983038, mutex=0x7fbf12983010, abstime=0x7fbf108fa970) at pthread_cond_wait.c:667
>No locals.
>#3  0x00007fbfe0d154ff in WTF::ThreadCondition::timedWait (this=this@entry=0x7fbf12983038, mutex=..., absoluteTime=...) at ../Source/WTF/wtf/ThreadingPrimitives.h:74
>        rawSeconds = 1556727098.1286271
>        timeSeconds = 1556727098
>        timeNanoseconds = 128627061
>        targetTime = {tv_sec = 1556727098, tv_nsec = 128627061}
>#4  0x00007fbfe0cc72c3 in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) (address=address@entry=0x7fbf43e2cd1b, validation=..., beforeSleep=..., timeout=...) at ../Source/WTF/wtf/ParkingLot.cpp:596
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf12983010}
>        me = <optimized out>
>        enqueueResult = <optimized out>
>        didGetDequeued = <optimized out>
>        didDequeue = <optimized out>
>        result = <optimized out>
>#5  0x00007fbfe0cb421e in WTF::ParkingLot::parkConditionally<WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1}, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2}>(void const*, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1} const&, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2} const&, WTF::TimeWithDynamicClockType const&) (timeout=..., beforeSleep=..., validation=..., address=0x7fbf43e2cd1b) at ../Source/WTF/wtf/ScopedLambda.h:187
>No locals.
>#6  WTF::Condition::waitUntil<WTF::Lock> (timeout=..., lock=..., this=0x7fbf43e2cd1b) at ../Source/WTF/wtf/Condition.h:75
>        result = <optimized out>
>        result = <optimized out>
>#7  WTF::Condition::waitFor<WTF::Lock> (relativeTimeout=..., lock=..., this=0x7fbf43e2cd1b) at ../Source/WTF/wtf/Condition.h:115
>No locals.
>#8  WTF::AutomaticThread::<lambda()>::operator() (__closure=<optimized out>) at ../Source/WTF/wtf/AutomaticThread.cpp:208
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbfcc2fc01c}
>        result = <optimized out>
>        thread = {static isRefPtr = <optimized out>, m_ptr = 0x7fbf43e2ccf0}
>        stopImpl = <optimized out>
>        stopPermanently = {__this = 0x7fbf43e2ccf0, __stopImpl = <synthetic pointer><error reading variable>}
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        thread = <optimized out>
>        stopImpl = <optimized out>
>        stopPermanently = <optimized out>
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = <optimized out>
>#9  WTF::Function<void()>::CallableWrapper<WTF::AutomaticThread::start(const WTF::AbstractLocker&)::<lambda()> >::call(void) (this=0x7fbf129af258) at ../Source/WTF/wtf/Function.h:102
>No locals.
>#10 0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#11 WTF::Thread::entryPoint (newThreadContext=0x7fbf129a9230) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbf129af258}, <No data fields>}, <No data fields>}}}}
>#12 0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#13 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140458593335040, -4218221837731311329, 140736297371534, 140736297371535, 140736297371680, 140458593332288, 4182714344908968223, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#14 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 28 (Thread 0x7fbf76ffb700 (LWP 13855)):
>#0  0x00007fbfe21a22b7 in __GI___poll (fds=0x7fbf5c003f30, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
>        resultvar = 18446744073709551100
>        sc_cancel_oldtype = 0
>        sc_ret = <optimized out>
>#1  0x00007fbfe13242de in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x7fbf5c003f30, timeout=<optimized out>, context=0x7fbf5c000b20) at ../glib/gmain.c:4228
>        ret = <optimized out>
>        errsv = <optimized out>
>        poll_func = 0x7fbfe1333ef0 <g_poll>
>        poll_func = <optimized out>
>        ret = <optimized out>
>        errsv = <optimized out>
>#2  g_main_context_iterate (context=0x7fbf5c000b20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
>        max_priority = 2147483647
>        timeout = -1
>        some_ready = <optimized out>
>        nfds = 2
>        allocated_nfds = 2
>        fds = 0x7fbf5c003f30
>#3  0x00007fbfe13246b3 in g_main_loop_run (loop=0x7fbf5c002d60) at ../glib/gmain.c:4123
>        self = <optimized out>
>        __FUNCTION__ = "g_main_loop_run"
>#4  0x00007fbfe0d14720 in WTF::RunLoop::run () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:96
>        runLoop = @0x7fbfcc2a7000: {<WTF::FunctionDispatcher> = {<WTF::ThreadSafeRefCounted<WTF::FunctionDispatcher, (WTF::DestructionThread)0>> = {<WTF::ThreadSafeRefCountedBase> = {m_refCount = {<std::__atomic_base<unsigned int>> = {static _S_alignment = 4, _M_i = 1}, <No data fields>}}, <No data fields>}, _vptr.FunctionDispatcher = 0x7fbfe0fcbdc0 <vtable for WTF::RunLoop+16>}, m_functionQueueLock = {static isHeldBit = 1 '\001', static hasParkedBit = 2 '\002', m_byte = {value = {<std::__atomic_base<unsigned char>> = {static _S_alignment = 1, _M_i = 0 '\000'}, <No data fields>}}}, m_functionQueue = {m_start = 4, m_end = 4, m_buffer = {<WTF::VectorBufferBase<WTF::Function<void()> >> = {m_buffer = 0x7fbfcc2bd580, m_capacity = 16, m_size = 0}, <No data fields>}}, m_mainContext = {m_ptr = 0x7fbf5c000b20}, m_mainLoops = {<WTF::VectorBuffer<WTF::GRefPtr<_GMainLoop>, 0>> = {<WTF::VectorBufferBase<WTF::GRefPtr<_GMainLoop> >> = {m_buffer = 0x7fbfcc2a6000, m_capacity = 16, m_size = 1}, <No data fields>}, <No data fields>}, m_source = {m_ptr = 0x7fbf5c002d80}}
>        mainContext = 0x7fbf5c000b20
>        innermostLoop = 0x7fbf5c002d60
>        nestedMainLoop = <optimized out>
>#5  0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#6  WTF::Thread::entryPoint (newThreadContext=0x7fbfcc2fa320) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbfcc2ad948}, <No data fields>}, <No data fields>}}}}
>#7  0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#8  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140460311951104, -4218221837731311329, 140736297375070, 140736297375071, 140736297375216, 140460311948352, 4182489907097948447, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#9  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 29 (Thread 0x7fbeff6ff700 (LWP 13961)):
>#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
>No locals.
>#1  0x00007fbfe1370073 in g_cond_wait (cond=cond@entry=0x55b300996db0, mutex=mutex@entry=0x55b300996dc0) at ../glib/gthread-posix.c:1413
>        sampled = 8
>#2  0x00007fbfdf3d0547 in gst_app_src_create (bsrc=0x55b300996f80, offset=<optimized out>, size=4096, buf=0x7fbeff6fe938) at gstappsrc.c:1279
>        appsrc = <optimized out>
>        priv = 0x55b300996db0
>        ret = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_app_src_create"
>        __FUNCTION__ = "gst_app_src_create"
>#3  0x00007fbfdf38a29d in gst_base_src_get_range (src=src@entry=0x55b300996f80, offset=offset@entry=281609, length=<optimized out>, buf=buf@entry=0x7fbeff6fea18) at gstbasesrc.c:2527
>        ret = <optimized out>
>        bclass = 0x55b300ffdb20
>        status = <optimized out>
>        res_buf = 0x0
>        in_buf = 0x0
>        own_res_buf = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_base_src_get_range"
>        _g_boolean_var_ = <optimized out>
>#4  0x00007fbfdf38d37c in gst_base_src_loop (pad=0x55b301485830) at gstbasesrc.c:2851
>        src = 0x55b300996f80
>        buf = 0x0
>        ret = <optimized out>
>        position = <optimized out>
>        eos = 0
>        blocksize = <optimized out>
>        pending_events = 0x0
>        tmp = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_base_src_loop"
>        __FUNCTION__ = "gst_base_src_loop"
>#5  0x00007fbfdf2b6e57 in gst_task_func (task=0x55b3014534d0) at gsttask.c:328
>        lock = 0x55b3014858a0
>        tself = 0x55b30149d850
>        priv = 0x55b301453480
>        __PRETTY_FUNCTION__ = "gst_task_func"
>#6  0x00007fbfe134e184 in g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:308
>        task = 0x7fbfc0012110
>        pool = 0x55b300ac7700
>#7  0x00007fbfe134d752 in g_thread_proxy (data=0x55b30149d850) at ../glib/gthread.c:805
>        thread = 0x55b30149d850
>        __FUNCTION__ = "g_thread_proxy"
>#8  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140458306041600, -4218221837731311329, 140736297371134, 140736297371135, 140736297371280, 140458306038848, 4181631053225185567, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#9  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 30 (Thread 0x7fbf419ff700 (LWP 13945)):
>#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fbf419fe970, expected=0, futex_word=0x7fbf4203f0e4) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
>        __ret = -516
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg6 = <optimized out>
>        __arg5 = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a6 = <optimized out>
>        _a5 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x7fbf419fe970, mutex=0x7fbf4203f090, cond=0x7fbf4203f0b8) at pthread_cond_wait.c:539
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbf419fe8f0, __canceltype = 1100998960, __prev = 0x0}
>        cbuffer = {wseq = 207, cond = 0x7fbf4203f0b8, mutex = 0x7fbf4203f090, private = 0}
>        err = <optimized out>
>        g = 1
>        flags = 0
>        g1_start = <optimized out>
>        maxspin = 0
>        signals = <optimized out>
>        result = 0
>        wseq = 207
>        seq = 103
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_timedwait (cond=0x7fbf4203f0b8, mutex=0x7fbf4203f090, abstime=0x7fbf419fe970) at pthread_cond_wait.c:667
>No locals.
>#3  0x00007fbfe0d154ff in WTF::ThreadCondition::timedWait (this=this@entry=0x7fbf4203f0b8, mutex=..., absoluteTime=...) at ../Source/WTF/wtf/ThreadingPrimitives.h:74
>        rawSeconds = 1556727098.5977888
>        timeSeconds = 1556727098
>        timeNanoseconds = 597788810
>        targetTime = {tv_sec = 1556727098, tv_nsec = 597788810}
>#4  0x00007fbfe0cc72c3 in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) (address=address@entry=0x7fbf42446a7b, validation=..., beforeSleep=..., timeout=...) at ../Source/WTF/wtf/ParkingLot.cpp:596
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf4203f090}
>        me = <optimized out>
>        enqueueResult = <optimized out>
>        didGetDequeued = <optimized out>
>        didDequeue = <optimized out>
>        result = <optimized out>
>#5  0x00007fbfe0cb421e in WTF::ParkingLot::parkConditionally<WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1}, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2}>(void const*, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1} const&, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2} const&, WTF::TimeWithDynamicClockType const&) (timeout=..., beforeSleep=..., validation=..., address=0x7fbf42446a7b) at ../Source/WTF/wtf/ScopedLambda.h:187
>No locals.
>#6  WTF::Condition::waitUntil<WTF::Lock> (timeout=..., lock=..., this=0x7fbf42446a7b) at ../Source/WTF/wtf/Condition.h:75
>        result = <optimized out>
>        result = <optimized out>
>#7  WTF::Condition::waitFor<WTF::Lock> (relativeTimeout=..., lock=..., this=0x7fbf42446a7b) at ../Source/WTF/wtf/Condition.h:115
>No locals.
>#8  WTF::AutomaticThread::<lambda()>::operator() (__closure=<optimized out>) at ../Source/WTF/wtf/AutomaticThread.cpp:208
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf4243d694}
>        result = <optimized out>
>        thread = {static isRefPtr = <optimized out>, m_ptr = 0x7fbf42446a50}
>        stopImpl = <optimized out>
>        stopPermanently = {__this = 0x7fbf42446a50, __stopImpl = <synthetic pointer><error reading variable>}
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        thread = <optimized out>
>        stopImpl = <optimized out>
>        stopPermanently = <optimized out>
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = <optimized out>
>#9  WTF::Function<void()>::CallableWrapper<WTF::AutomaticThread::start(const WTF::AbstractLocker&)::<lambda()> >::call(void) (this=0x7fbf420f0078) at ../Source/WTF/wtf/Function.h:102
>No locals.
>#10 0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#11 WTF::Thread::entryPoint (newThreadContext=0x7fbf42429500) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbf420f0078}, <No data fields>}, <No data fields>}}}}
>#12 0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#13 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140459416483584, -4218221837731311329, 140736297369646, 140736297369647, 140736297369792, 140459416480832, 4182540761658216735, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#14 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 31 (Thread 0x7fbeeb5fe700 (LWP 13974)):
>#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
>No locals.
>#1  0x00007fbfe1370073 in g_cond_wait (cond=cond@entry=0x55b30147a2b8, mutex=mutex@entry=0x55b30147a290) at ../glib/gthread-posix.c:1413
>        sampled = 28
>#2  0x00007fbf763cf15e in gst_queue_chain_buffer_or_list (parent=0x55b30147a010, obj=0x7fbef80a2900, is_list=0, pad=<optimized out>) at gstqueue.c:1247
>        queue = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_queue_chain_buffer_or_list"
>#3  0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b301454b00, type=type@entry=4112, data=data@entry=0x7fbef80a2900) at gstpad.c:4326
>        chainfunc = 0x7fbf763cfab0 <gst_queue_chain>
>        ret = <optimized out>
>        parent = 0x55b30147a010
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#4  0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b301458aa0, type=type@entry=4112, data=data@entry=0x7fbef80a2900) at gstpad.c:4582
>        peer = 0x55b301454b00
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#5  0x00007fbfdf288b33 in gst_pad_push (pad=0x55b301458aa0, buffer=0x7fbef80a2900) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#6  0x00007fbf763dd2f1 in gst_tee_handle_data (tee=tee@entry=0x7fbfc0009d20, data=data@entry=0x7fbef80a2900, is_list=is_list@entry=0) at gsttee.c:899
>        pad = 0x55b301458aa0
>        pads = <optimized out>
>        cookie = <optimized out>
>        ret = <optimized out>
>        cret = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_tee_handle_data"
>#7  0x00007fbf763dd48d in gst_tee_chain (pad=<optimized out>, parent=0x7fbfc0009d20, buffer=0x7fbef80a2900) at gsttee.c:1022
>        res = <optimized out>
>        tee = 0x7fbfc0009d20
>        __PRETTY_FUNCTION__ = "gst_tee_chain"
>#8  0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b3014548b0, type=type@entry=4112, data=data@entry=0x7fbef80a2900) at gstpad.c:4326
>        chainfunc = 0x7fbf763dd430 <gst_tee_chain>
>        ret = <optimized out>
>        parent = 0x7fbfc0009d20
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#9  0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b301458850, type=type@entry=4112, data=data@entry=0x7fbef80a2900) at gstpad.c:4582
>        peer = 0x55b3014548b0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#10 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x55b301458850, buffer=buffer@entry=0x7fbef80a2900) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#11 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbef80a2900) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x55b301458850
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#12 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b3014568d0, type=type@entry=4112, data=data@entry=0x7fbef80a2900) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x55b30144f2b0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#13 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef8023740, type=type@entry=4112, data=data@entry=0x7fbef80a2900) at gstpad.c:4582
>        peer = 0x55b3014568d0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#14 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x7fbef8023740, buffer=buffer@entry=0x7fbef80a2900) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#15 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbef80a2900) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x7fbef8023740
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#16 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef807a080, type=type@entry=4112, data=data@entry=0x7fbef80a2900) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x7fbef8023740
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#17 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef8084d20, type=type@entry=4112, data=data@entry=0x7fbef80a2900) at gstpad.c:4582
>        peer = 0x7fbef807a080
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#18 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbef8084d20, buffer=0x7fbef80a2900) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#19 0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x7fbef8086bd0, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x7fbef8086bd0
>        klass = 0x55b301480610
>        priv = 0x7fbef8086b00
>        ret = <optimized out>
>        position = 1674500000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbef80a2900
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#20 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef8084ad0, type=type@entry=4112, data=data@entry=0x7fbef80a2900) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x7fbef8086bd0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#21 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef8084880, type=type@entry=4112, data=data@entry=0x7fbef80a2900) at gstpad.c:4582
>        peer = 0x7fbef8084ad0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#22 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbef8084880, buffer=0x7fbef80a2900) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#23 0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x7fbef80862f0, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x7fbef80862f0
>        klass = 0x55b301479ca0
>        priv = 0x7fbef8086220
>        ret = <optimized out>
>        position = 1674500000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbef80a2900
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#24 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef8084630, type=type@entry=4112, data=data@entry=0x7fbef80a2900) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x7fbef80862f0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#25 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef4009d50, type=type@entry=4112, data=data@entry=0x7fbef80a2900) at gstpad.c:4582
>        peer = 0x7fbef8084630
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#26 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x7fbef4009d50, buffer=buffer@entry=0x7fbef80a2900) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#27 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbef80a2900) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x7fbef4009d50
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#28 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef80234c0, type=type@entry=4112, data=data@entry=0x7fbef80a2900) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x55b3014b4b60
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#29 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef8065860, type=type@entry=4112, data=data@entry=0x7fbef80a2900) at gstpad.c:4582
>        peer = 0x7fbef80234c0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#30 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbef8065860, buffer=buffer@entry=0x7fbef80a2900) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#31 0x00007fbf763ce494 in gst_queue_push_one (queue=0x7fbef8026070) at gstqueue.c:1384
>        buffer = 0x7fbef80a2900
>        data = <optimized out>
>        is_list = <optimized out>
>        result = <optimized out>
>        result = <optimized out>
>        data = <optimized out>
>        is_list = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_queue_push_one"
>        buffer = <optimized out>
>        subbuffer = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        buffer_list = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        event = <optimized out>
>        type = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        query = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        event = <optimized out>
>        type = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        query = <optimized out>
>        ret = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        ret = <optimized out>
>        _g_boolean_var_ = <optimized out>
>        ret = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#32 gst_queue_loop (pad=<optimized out>) at gstqueue.c:1537
>        queue = 0x7fbef8026070
>        ret = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_queue_loop"
>#33 0x00007fbfdf2b6e57 in gst_task_func (task=0x7fbf4c063170) at gsttask.c:328
>        lock = 0x7fbef80658d0
>        tself = 0x7fbef4134ad0
>        priv = 0x7fbf4c063120
>        __PRETTY_FUNCTION__ = "gst_task_func"
>#34 0x00007fbfe134e184 in g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:308
>        task = 0x7fbf4858fda0
>        pool = 0x55b300ac7700
>#35 0x00007fbfe134d752 in g_thread_proxy (data=0x7fbef4134ad0) at ../glib/gthread.c:805
>        thread = 0x7fbef4134ad0
>        __FUNCTION__ = "g_thread_proxy"
>#36 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140457969444608, -4218221837731311329, 140458297636654, 140458297636655, 140458297636800, 140457969441856, 4181604528044036383, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#37 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 32 (Thread 0x7fbee89ff700 (LWP 13975)):
>#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
>No locals.
>#1  0x00007fbfe137018e in g_cond_wait_until (cond=cond@entry=0x55b300ac3e48, mutex=mutex@entry=0x55b300ac3e40, end_time=end_time@entry=432286894) at ../glib/gthread-posix.c:1460
>        now = {tv_sec = 431, tv_nsec = 786894404}
>        span = {tv_sec = 0, tv_nsec = 499999596}
>        sampled = 0
>        res = <optimized out>
>#2  0x00007fbfe12f5011 in g_async_queue_pop_intern_unlocked (queue=0x55b300ac3e40, wait=wait@entry=1, end_time=432286894) at ../glib/gasyncqueue.c:422
>        retval = <optimized out>
>        __FUNCTION__ = "g_async_queue_pop_intern_unlocked"
>#3  0x00007fbfe12f56c1 in g_async_queue_timeout_pop_unlocked (queue=<optimized out>, timeout=timeout@entry=500000) at ../glib/gasyncqueue.c:574
>        end_time = <optimized out>
>        __FUNCTION__ = "g_async_queue_timeout_pop_unlocked"
>#4  0x00007fbfe134e2da in g_thread_pool_wait_for_new_task (pool=<optimized out>) at ../glib/gthreadpool.c:263
>        task = <optimized out>
>        task = <optimized out>
>#5  g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:297
>        task = <optimized out>
>        pool = 0x55b3009f4b40
>#6  0x00007fbfe134d752 in g_thread_proxy (data=0x55b30149e2d0) at ../glib/gthread.c:805
>        thread = 0x55b30149e2d0
>        __FUNCTION__ = "g_thread_proxy"
>#7  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140457923311360, -4218221837731311329, 140457988285422, 140457988285423, 140457988285568, 140457923308608, 4181606176774607135, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#8  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 33 (Thread 0x7fbfbe7fc700 (LWP 13846)):
>#0  0x00007fbfe21a22b7 in __GI___poll (fds=0x7fbf60002ef0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
>        resultvar = 18446744073709551100
>        sc_cancel_oldtype = 0
>        sc_ret = <optimized out>
>#1  0x00007fbfe13242de in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x7fbf60002ef0, timeout=<optimized out>, context=0x7fbf60000b20) at ../glib/gmain.c:4228
>        ret = <optimized out>
>        errsv = <optimized out>
>        poll_func = 0x7fbfe1333ef0 <g_poll>
>        poll_func = <optimized out>
>        ret = <optimized out>
>        errsv = <optimized out>
>#2  g_main_context_iterate (context=0x7fbf60000b20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
>        max_priority = 2147483647
>        timeout = -1
>        some_ready = <optimized out>
>        nfds = 2
>        allocated_nfds = 2
>        fds = 0x7fbf60002ef0
>#3  0x00007fbfe13246b3 in g_main_loop_run (loop=0x7fbf60001d00) at ../glib/gmain.c:4123
>        self = <optimized out>
>        __FUNCTION__ = "g_main_loop_run"
>#4  0x00007fbfe0d14720 in WTF::RunLoop::run () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:96
>        runLoop = @0x7fbfcc2e6000: {<WTF::FunctionDispatcher> = {<WTF::ThreadSafeRefCounted<WTF::FunctionDispatcher, (WTF::DestructionThread)0>> = {<WTF::ThreadSafeRefCountedBase> = {m_refCount = {<std::__atomic_base<unsigned int>> = {static _S_alignment = 4, _M_i = 1}, <No data fields>}}, <No data fields>}, _vptr.FunctionDispatcher = 0x7fbfe0fcbdc0 <vtable for WTF::RunLoop+16>}, m_functionQueueLock = {static isHeldBit = 1 '\001', static hasParkedBit = 2 '\002', m_byte = {value = {<std::__atomic_base<unsigned char>> = {static _S_alignment = 1, _M_i = 0 '\000'}, <No data fields>}}}, m_functionQueue = {m_start = 9, m_end = 9, m_buffer = {<WTF::VectorBufferBase<WTF::Function<void()> >> = {m_buffer = 0x7fbfcc2fd680, m_capacity = 16, m_size = 0}, <No data fields>}}, m_mainContext = {m_ptr = 0x7fbf60000b20}, m_mainLoops = {<WTF::VectorBuffer<WTF::GRefPtr<_GMainLoop>, 0>> = {<WTF::VectorBufferBase<WTF::GRefPtr<_GMainLoop> >> = {m_buffer = 0x7fbfcc2e5000, m_capacity = 16, m_size = 1}, <No data fields>}, <No data fields>}, m_source = {m_ptr = 0x7fbf60001d20}}
>        mainContext = 0x7fbf60000b20
>        innermostLoop = 0x7fbf60001d00
>        nestedMainLoop = <optimized out>
>#5  0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#6  WTF::Thread::entryPoint (newThreadContext=0x7fbfcc2fa140) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbfcc2f80c0}, <No data fields>}, <No data fields>}}}}
>#7  0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#8  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140461511526144, -4218221837731311329, 140736297376526, 140736297376527, 140736297376672, 140461511523392, 4182332676398305567, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#9  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 34 (Thread 0x7fbedb0ff700 (LWP 13976)):
>#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fbedb0fe970, expected=0, futex_word=0x7fbf51a40c60) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
>        __ret = -516
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg6 = <optimized out>
>        __arg5 = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a6 = <optimized out>
>        _a5 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x7fbedb0fe970, mutex=0x7fbf51a40c10, cond=0x7fbf51a40c38) at pthread_cond_wait.c:539
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbedb0fe8f0, __canceltype = -619714256, __prev = 0x0}
>        cbuffer = {wseq = 0, cond = 0x7fbf51a40c38, mutex = 0x7fbf51a40c10, private = 0}
>        err = <optimized out>
>        g = 0
>        flags = 0
>        g1_start = <optimized out>
>        maxspin = 0
>        signals = <optimized out>
>        result = 0
>        wseq = 0
>        seq = 0
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_timedwait (cond=0x7fbf51a40c38, mutex=0x7fbf51a40c10, abstime=0x7fbedb0fe970) at pthread_cond_wait.c:667
>No locals.
>#3  0x00007fbfe0d154ff in WTF::ThreadCondition::timedWait (this=this@entry=0x7fbf51a40c38, mutex=..., absoluteTime=...) at ../Source/WTF/wtf/ThreadingPrimitives.h:74
>        rawSeconds = 1556727098.462394
>        timeSeconds = 1556727098
>        timeNanoseconds = 462393999
>        targetTime = {tv_sec = 1556727098, tv_nsec = 462393999}
>#4  0x00007fbfe0cc72c3 in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) (address=address@entry=0x7fbf129ad1e3, validation=..., beforeSleep=..., timeout=...) at ../Source/WTF/wtf/ParkingLot.cpp:596
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf51a40c10}
>        me = <optimized out>
>        enqueueResult = <optimized out>
>        didGetDequeued = <optimized out>
>        didDequeue = <optimized out>
>        result = <optimized out>
>#5  0x00007fbfe0cb421e in WTF::ParkingLot::parkConditionally<WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1}, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2}>(void const*, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1} const&, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2} const&, WTF::TimeWithDynamicClockType const&) (timeout=..., beforeSleep=..., validation=..., address=0x7fbf129ad1e3) at ../Source/WTF/wtf/ScopedLambda.h:187
>No locals.
>#6  WTF::Condition::waitUntil<WTF::Lock> (timeout=..., lock=..., this=0x7fbf129ad1e3) at ../Source/WTF/wtf/Condition.h:75
>        result = <optimized out>
>        result = <optimized out>
>#7  WTF::Condition::waitFor<WTF::Lock> (relativeTimeout=..., lock=..., this=0x7fbf129ad1e3) at ../Source/WTF/wtf/Condition.h:115
>No locals.
>#8  WTF::AutomaticThread::<lambda()>::operator() (__closure=<optimized out>) at ../Source/WTF/wtf/AutomaticThread.cpp:208
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf43e31cb4}
>        result = <optimized out>
>        thread = {static isRefPtr = <optimized out>, m_ptr = 0x7fbf129ad1b8}
>        stopImpl = <optimized out>
>        stopPermanently = {__this = 0x7fbf129ad1b8, __stopImpl = <synthetic pointer><error reading variable>}
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        thread = <optimized out>
>        stopImpl = <optimized out>
>        stopPermanently = <optimized out>
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = <optimized out>
>#9  WTF::Function<void()>::CallableWrapper<WTF::AutomaticThread::start(const WTF::AbstractLocker&)::<lambda()> >::call(void) (this=0x7fbf404f4588) at ../Source/WTF/wtf/Function.h:102
>No locals.
>#10 0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#11 WTF::Thread::entryPoint (newThreadContext=0x7fbf306c35a0) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbf404f4588}, <No data fields>}, <No data fields>}}}}
>#12 0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#13 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140457695770368, -4218221837731311329, 140736297366126, 140736297366127, 140736297366272, 140457695767616, 4181710492940292383, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#14 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 35 (Thread 0x7fbefdefc700 (LWP 13964)):
>#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
>No locals.
>#1  0x00007fbfe1370073 in g_cond_wait (cond=cond@entry=0x55b30147bdb8, mutex=mutex@entry=0x55b30147bd90) at ../glib/gthread-posix.c:1413
>        sampled = 12
>#2  0x00007fbf763cf15e in gst_queue_chain_buffer_or_list (parent=0x55b30147bb10, obj=0x7fbf4c04db40, is_list=0, pad=<optimized out>) at gstqueue.c:1247
>        queue = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_queue_chain_buffer_or_list"
>#3  0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef802a5d0, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4326
>        chainfunc = 0x7fbf763cfab0 <gst_queue_chain>
>        ret = <optimized out>
>        parent = 0x55b30147bb10
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#4  0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b301485390, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4582
>        peer = 0x7fbef802a5d0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#5  0x00007fbfdf288b33 in gst_pad_push (pad=0x55b301485390, buffer=0x7fbf4c04db40) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#6  0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x55b301492380, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x55b301492380
>        klass = 0x55b30148f950
>        priv = 0x55b3014922b0
>        ret = <optimized out>
>        position = 680000000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbf4c04db40
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#7  0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b301485140, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x55b301492380
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#8  0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef802a380, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4582
>        peer = 0x55b301485140
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#9  0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbef802a380, buffer=0x7fbf4c04db40) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#10 0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x7fbef80120f0, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x7fbef80120f0
>        klass = 0x7fbef8016b50
>        priv = 0x7fbef8012020
>        ret = <optimized out>
>        position = 680000000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbf4c04db40
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#11 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef802a130, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x7fbef80120f0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#12 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef4009630, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4582
>        peer = 0x7fbef802a130
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#13 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x7fbef4009630, buffer=buffer@entry=0x7fbf4c04db40) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#14 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbf4c04db40) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x7fbef4009630
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#15 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef8022d40, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x55b30144f790
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#16 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef8023240, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4582
>        peer = 0x7fbef8022d40
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#17 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x7fbef8023240, buffer=buffer@entry=0x7fbf4c04db40) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#18 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbf4c04db40) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x7fbef8023240
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#19 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef4009af0, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x7fbef8023240
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#20 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef8064f20, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4582
>        peer = 0x7fbef4009af0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#21 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbef8064f20, buffer=0x7fbf4c04db40) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#22 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef8064cd0, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4326
>        chainfunc = 0x7fbf759c9770 <gst_deinterlace_chain>
>        ret = <optimized out>
>        parent = 0x7fbef8075980
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#23 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef8064a80, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4582
>        peer = 0x7fbef8064cd0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#24 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbef8064a80, buffer=0x7fbf4c04db40) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#25 0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x7fbef805a4b0, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x7fbef805a4b0
>        klass = 0x7fbef8016b50
>        priv = 0x7fbef805a3e0
>        ret = <optimized out>
>        position = 680000000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbf4c04db40
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#26 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef8064830, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x7fbef805a4b0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#27 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef4009890, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4582
>        peer = 0x7fbef8064830
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#28 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x7fbef4009890, buffer=buffer@entry=0x7fbf4c04db40) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#29 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbf4c04db40) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x7fbef4009890
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#30 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef8022fc0, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x55b30144f930
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#31 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef80645e0, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4582
>        peer = 0x7fbef8022fc0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#32 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x7fbef80645e0, buffer=buffer@entry=0x7fbf4c04db40) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#33 0x00007fbf765acec8 in gst_stream_synchronizer_sink_chain (pad=0x7fbef8064390, parent=0x55b30144e0c0, buffer=0x7fbf4c04db40) at gststreamsynchronizer.c:716
>        self = 0x55b30144e0c0
>        opad = 0x7fbef80645e0
>        ret = GST_FLOW_ERROR
>        stream = <optimized out>
>        duration = <optimized out>
>        timestamp = 640000000
>        timestamp_end = 680000000
>        __PRETTY_FUNCTION__ = "gst_stream_synchronizer_sink_chain"
>#34 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef8064390, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4326
>        chainfunc = 0x7fbf765acba0 <gst_stream_synchronizer_sink_chain>
>        ret = <optimized out>
>        parent = 0x55b30144e0c0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#35 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef4008f10, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4582
>        peer = 0x7fbef8064390
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#36 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x7fbef4008f10, buffer=buffer@entry=0x7fbf4c04db40) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#37 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbf4c04db40) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x7fbef4008f10
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#38 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef80225c0, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x55b30144c270
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#39 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbf4c00b090, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4582
>        peer = 0x7fbef80225c0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#40 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbf4c00b090, buffer=buffer@entry=0x7fbf4c04db40) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#41 0x00007fbf763c01bf in gst_selector_pad_chain (pad=0x55b30147ac50, parent=0x7fbef4216070, buf=0x7fbf4c04db40) at gstinputselector.c:1132
>        sel = 0x7fbef4216070
>        res = <optimized out>
>        active_sinkpad = <optimized out>
>        prev_active_sinkpad = 0x0
>        selpad = 0x55b30147ac50
>        __PRETTY_FUNCTION__ = "gst_selector_pad_chain"
>#42 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b30147ac50, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4326
>        chainfunc = 0x7fbf763bf790 <gst_selector_pad_chain>
>        ret = <optimized out>
>        parent = 0x7fbef4216070
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#43 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b301457550, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4582
>        peer = 0x55b30147ac50
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#44 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x55b301457550, buffer=buffer@entry=0x7fbf4c04db40) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#45 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbf4c04db40) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x55b301457550
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#46 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef40080d0, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x55b301457550
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#47 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b300942b00, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4582
>        peer = 0x7fbef40080d0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#48 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x55b300942b00, buffer=buffer@entry=0x7fbf4c04db40) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#49 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbf4c04db40) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x55b300942b00
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#50 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b301459db0, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x55b300942b00
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#51 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbf4c00ae40, type=type@entry=4112, data=data@entry=0x7fbf4c04db40) at gstpad.c:4582
>        peer = 0x55b301459db0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#52 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbf4c00ae40, buffer=buffer@entry=0x7fbf4c04db40) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#53 0x00007fbfdf0a7655 in gst_video_decoder_clip_and_push_buf (decoder=decoder@entry=0x7fbef4137ce0, buf=buf@entry=0x7fbf4c04db40) at gstvideodecoder.c:3191
>        ret = GST_FLOW_OK
>        priv = 0x7fbef4137b40
>        start = <optimized out>
>        stop = <optimized out>
>        cstart = 640000000
>        cstop = 680000000
>        segment = <optimized out>
>        duration = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_video_decoder_clip_and_push_buf"
>#54 0x00007fbfdf0aed4b in gst_video_decoder_finish_frame (decoder=decoder@entry=0x7fbef4137ce0, frame=0x0, frame@entry=0x55b300982ad0) at gstvideodecoder.c:3043
>        ret = GST_FLOW_OK
>        decoder_class = <optimized out>
>        priv = 0x7fbef4137b40
>        output_buffer = 0x7fbf4c04db40
>        needs_reconfigure = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_video_decoder_finish_frame"
>#55 0x00007fbf75d16103 in gst_vpx_dec_handle_frame (decoder=0x7fbef4137ce0, frame=0x55b300982ad0) at gstvpxdec.c:723
>        dec = 0x7fbef4137ce0
>        ret = GST_FLOW_OK
>        status = <optimized out>
>        iter = 0x0
>        img = 0x7fbef402e138
>        decoder_deadline = <optimized out>
>        deadline = <optimized out>
>        minfo = {memory = 0x55b3014cb460, flags = GST_MAP_READ, data = 0x7fbf13b797ab "\206", size = 70, maxsize = 153434, user_data = {0x7fbefdefaff0, 0x55b3014bcc40, 0x7fbefdefaf80, 0x7fbef4004c10}, _gst_reserved = {0x7fbefdefaff0, 0x7fbefdefaf80, 0x55b3014bcc40, 0x2}}
>        vpxclass = <optimized out>
>        fmt = GST_VIDEO_FORMAT_I420
>        __func__ = "gst_vpx_dec_handle_frame"
>#56 0x00007fbfdf0a6b0b in gst_video_decoder_decode_frame (decoder=decoder@entry=0x7fbef4137ce0, frame=0x55b300982ad0) at gstvideodecoder.c:3402
>        priv = 0x7fbef4137b40
>        decoder_class = 0x7fbef4137410
>        ret = GST_FLOW_OK
>        __FUNCTION__ = "gst_video_decoder_decode_frame"
>        __PRETTY_FUNCTION__ = "gst_video_decoder_decode_frame"
>#57 0x00007fbfdf0a9858 in gst_video_decoder_chain_forward (decoder=decoder@entry=0x7fbef4137ce0, buf=buf@entry=0x7fbef0009c60, at_eos=at_eos@entry=0) at gstvideodecoder.c:2123
>        was_keyframe = <optimized out>
>        priv = 0x7fbef4137b40
>        klass = <optimized out>
>        ret = GST_FLOW_OK
>        __FUNCTION__ = "gst_video_decoder_chain_forward"
>        __PRETTY_FUNCTION__ = "gst_video_decoder_chain_forward"
>#58 0x00007fbfdf0a9f4a in gst_video_decoder_chain (pad=<optimized out>, parent=0x7fbef4137ce0, buf=0x7fbef0009c60) at gstvideodecoder.c:2438
>        decoder = 0x7fbef4137ce0
>        ret = GST_FLOW_OK
>        __PRETTY_FUNCTION__ = "gst_video_decoder_chain"
>#59 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbf4c00abf0, type=type@entry=4112, data=data@entry=0x7fbef0009c60) at gstpad.c:4326
>        chainfunc = 0x7fbfdf0a9c30 <gst_video_decoder_chain>
>        ret = <optimized out>
>        parent = 0x7fbef4137ce0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#60 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b3014bcc40, type=type@entry=4112, data=data@entry=0x7fbef0009c60) at gstpad.c:4582
>        peer = 0x7fbf4c00abf0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#61 0x00007fbfdf288b33 in gst_pad_push (pad=0x55b3014bcc40, buffer=0x7fbef0009c60) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#62 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b3014bc9f0, type=type@entry=4112, data=data@entry=0x7fbef0009c60) at gstpad.c:4326
>        chainfunc = 0x7fbf763e10a0 <gst_type_find_element_chain>
>        ret = <optimized out>
>        parent = 0x55b300913280
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#63 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b3014591d0, type=type@entry=4112, data=data@entry=0x7fbef0009c60) at gstpad.c:4582
>        peer = 0x55b3014bc9f0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#64 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x55b3014591d0, buffer=buffer@entry=0x7fbef0009c60) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#65 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbef0009c60) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x55b3014591d0
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#66 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b301456dd0, type=type@entry=4112, data=data@entry=0x7fbef0009c60) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x55b30142a330
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#67 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b301456b50, type=type@entry=4112, data=data@entry=0x7fbef0009c60) at gstpad.c:4582
>        peer = 0x55b301456dd0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#68 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x55b301456b50, buffer=buffer@entry=0x7fbef0009c60) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#69 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=pad@entry=0x55b301458f70, parent=<optimized out>, buffer=buffer@entry=0x7fbef0009c60) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x55b301456b50
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#70 0x00007fbfe2e6d930 in webkitMediaSrcChain (pad=0x55b301458f70, parent=0x55b301456b50, buffer=0x7fbef0009c60) at ../Source/WebCore/platform/graphics/gstreamer/mse/WebKitMediaSourceGStreamer.cpp:250
>        self = {m_ptr = 0x55b3014b0100}
>#71 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b301458f70, type=type@entry=4112, data=data@entry=0x7fbef0009c60) at gstpad.c:4326
>        chainfunc = 0x7fbfe2e6d8c0 <webkitMediaSrcChain(GstPad*, GstObject*, GstBuffer*)>
>        ret = <optimized out>
>        parent = 0x55b301456b50
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#72 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b3014bc7a0, type=type@entry=4112, data=data@entry=0x7fbef0009c60) at gstpad.c:4582
>        peer = 0x55b301458f70
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#73 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x55b3014bc7a0, buffer=0x7fbef0009c60) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#74 0x00007fbfdf38dd55 in gst_base_src_loop (pad=0x55b3014bc7a0) at gstbasesrc.c:2974
>        src = 0x55b3014c69d0
>        buf = 0x7fbef0009c60
>        ret = <optimized out>
>        position = <optimized out>
>        eos = 0
>        blocksize = <optimized out>
>        pending_events = <optimized out>
>        tmp = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_base_src_loop"
>        __FUNCTION__ = "gst_base_src_loop"
>#75 0x00007fbfdf2b6e57 in gst_task_func (task=0x55b301453950) at gsttask.c:328
>        lock = 0x55b3014bc810
>        tself = 0x55b30149da80
>        priv = 0x55b301453900
>        __PRETTY_FUNCTION__ = "gst_task_func"
>#76 0x00007fbfe134e184 in g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:308
>        task = 0x7fbf48587230
>        pool = 0x55b300ac7700
>#77 0x00007fbfe134d752 in g_thread_proxy (data=0x55b30149da80) at ../glib/gthread.c:805
>        thread = 0x55b30149da80
>        __FUNCTION__ = "g_thread_proxy"
>#78 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140458280863488, -4218221837731311329, 140736297371550, 140736297371551, 140736297371696, 140458280860736, 4181634349075714335, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#79 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 36 (Thread 0x7fbeef7fe700 (LWP 13966)):
>#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fbef401ec64) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
>        __ret = -512
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fbef401ec10, cond=0x7fbef401ec38) at pthread_cond_wait.c:502
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbeef7fdb00, __canceltype = 320, __prev = 0x0}
>        cbuffer = {wseq = 67, cond = 0x7fbef401ec38, mutex = 0x7fbef401ec10, private = 0}
>        rt = <optimized out>
>        err = <optimized out>
>        g = 1
>        flags = <optimized out>
>        g1_start = <optimized out>
>        signals = <optimized out>
>        result = 0
>        wseq = 67
>        seq = 33
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_wait (cond=0x7fbef401ec38, mutex=0x7fbef401ec10) at pthread_cond_wait.c:655
>No locals.
>#3  0x00007fbefca3e1cc in thread_loop (ptr=0x7fbef402e2a0) at vpx_util/vpx_thread.c:38
>        worker = 0x7fbef402e2a0
>        done = 0
>#4  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140458038650624, -4218221837731311329, 140458280856142, 140458280856143, 140458280856144, 140458038647872, 4181596006828921119, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#5  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 37 (Thread 0x7fbfbffff700 (LWP 13843)):
>#0  0x00007fbfe21a22b7 in __GI___poll (fds=0x7fbf70002660, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
>        resultvar = 18446744073709551100
>        sc_cancel_oldtype = 0
>        sc_ret = <optimized out>
>#1  0x00007fbfe13242de in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fbf70002660, timeout=<optimized out>, context=0x7fbf70000b20) at ../glib/gmain.c:4228
>        ret = <optimized out>
>        errsv = <optimized out>
>        poll_func = 0x7fbfe1333ef0 <g_poll>
>        poll_func = <optimized out>
>        ret = <optimized out>
>        errsv = <optimized out>
>#2  g_main_context_iterate (context=0x7fbf70000b20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
>        max_priority = 2147483647
>        timeout = -1
>        some_ready = <optimized out>
>        nfds = 1
>        allocated_nfds = 1
>        fds = 0x7fbf70002660
>#3  0x00007fbfe13246b3 in g_main_loop_run (loop=0x7fbf70001440) at ../glib/gmain.c:4123
>        self = <optimized out>
>        __FUNCTION__ = "g_main_loop_run"
>#4  0x00007fbfe0d14720 in WTF::RunLoop::run () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:96
>        runLoop = @0x7fbfcc2f4000: {<WTF::FunctionDispatcher> = {<WTF::ThreadSafeRefCounted<WTF::FunctionDispatcher, (WTF::DestructionThread)0>> = {<WTF::ThreadSafeRefCountedBase> = {m_refCount = {<std::__atomic_base<unsigned int>> = {static _S_alignment = 4, _M_i = 1}, <No data fields>}}, <No data fields>}, _vptr.FunctionDispatcher = 0x7fbfe0fcbdc0 <vtable for WTF::RunLoop+16>}, m_functionQueueLock = {static isHeldBit = 1 '\001', static hasParkedBit = 2 '\002', m_byte = {value = {<std::__atomic_base<unsigned char>> = {static _S_alignment = 1, _M_i = 0 '\000'}, <No data fields>}}}, m_functionQueue = {m_start = 0, m_end = 0, m_buffer = {<WTF::VectorBufferBase<WTF::Function<void()> >> = {m_buffer = 0x0, m_capacity = 0, m_size = 0}, <No data fields>}}, m_mainContext = {m_ptr = 0x7fbf70000b20}, m_mainLoops = {<WTF::VectorBuffer<WTF::GRefPtr<_GMainLoop>, 0>> = {<WTF::VectorBufferBase<WTF::GRefPtr<_GMainLoop> >> = {m_buffer = 0x7fbfcc2f3000, m_capacity = 16, m_size = 1}, <No data fields>}, <No data fields>}, m_source = {m_ptr = 0x7fbf70001460}}
>        mainContext = 0x7fbf70000b20
>        innermostLoop = 0x7fbf70001440
>        nestedMainLoop = <optimized out>
>#5  0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#6  WTF::Thread::entryPoint (newThreadContext=0x7fbfcc2fa050) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbfcc2f8018}, <No data fields>}, <No data fields>}}}}
>#7  0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#8  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140461536704256, -4218221837731311329, 140736297376478, 140736297376479, 140736297376624, 140461536701504, 4182333778594287903, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#9  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 38 (Thread 0x7fbeed7fa700 (LWP 13970)):
>#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fbef4011de0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
>        __ret = -512
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fbef4011d90, cond=0x7fbef4011db8) at pthread_cond_wait.c:502
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbeed7f9b00, __canceltype = 0, __prev = 0x0}
>        cbuffer = {wseq = 0, cond = 0x7fbef4011db8, mutex = 0x7fbef4011d90, private = 0}
>        rt = <optimized out>
>        err = <optimized out>
>        g = 0
>        flags = <optimized out>
>        g1_start = <optimized out>
>        signals = <optimized out>
>        result = 0
>        wseq = 0
>        seq = 0
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_wait (cond=0x7fbef4011db8, mutex=0x7fbef4011d90) at pthread_cond_wait.c:655
>No locals.
>#3  0x00007fbefca3e1cc in thread_loop (ptr=0x7fbef402e360) at vpx_util/vpx_thread.c:38
>        worker = 0x7fbef402e360
>        done = 0
>#4  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140458005079808, -4218221837731311329, 140458280856142, 140458280856143, 140458280856144, 140458005077056, 4181600402727948575, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#5  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 39 (Thread 0x7fbf535fe700 (LWP 13951)):
>#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fbf535fd970, expected=0, futex_word=0x7fbf129a2060) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
>        __ret = -516
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg6 = <optimized out>
>        __arg5 = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a6 = <optimized out>
>        _a5 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x7fbf535fd970, mutex=0x7fbf129a2010, cond=0x7fbf129a2038) at pthread_cond_wait.c:539
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbf535fd8f0, __canceltype = 1398790448, __prev = 0x0}
>        cbuffer = {wseq = 200, cond = 0x7fbf129a2038, mutex = 0x7fbf129a2010, private = 0}
>        err = <optimized out>
>        g = 0
>        flags = 0
>        g1_start = <optimized out>
>        maxspin = 0
>        signals = <optimized out>
>        result = 0
>        wseq = 200
>        seq = 100
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_timedwait (cond=0x7fbf129a2038, mutex=0x7fbf129a2010, abstime=0x7fbf535fd970) at pthread_cond_wait.c:667
>No locals.
>#3  0x00007fbfe0d154ff in WTF::ThreadCondition::timedWait (this=this@entry=0x7fbf129a2038, mutex=..., absoluteTime=...) at ../Source/WTF/wtf/ThreadingPrimitives.h:74
>        rawSeconds = 1556727098.1286261
>        timeSeconds = 1556727098
>        timeNanoseconds = 128626108
>        targetTime = {tv_sec = 1556727098, tv_nsec = 128626108}
>#4  0x00007fbfe0cc72c3 in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) (address=address@entry=0x7fbf43e2cbb3, validation=..., beforeSleep=..., timeout=...) at ../Source/WTF/wtf/ParkingLot.cpp:596
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf129a2010}
>        me = <optimized out>
>        enqueueResult = <optimized out>
>        didGetDequeued = <optimized out>
>        didDequeue = <optimized out>
>        result = <optimized out>
>#5  0x00007fbfe0cb421e in WTF::ParkingLot::parkConditionally<WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1}, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2}>(void const*, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1} const&, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2} const&, WTF::TimeWithDynamicClockType const&) (timeout=..., beforeSleep=..., validation=..., address=0x7fbf43e2cbb3) at ../Source/WTF/wtf/ScopedLambda.h:187
>No locals.
>#6  WTF::Condition::waitUntil<WTF::Lock> (timeout=..., lock=..., this=0x7fbf43e2cbb3) at ../Source/WTF/wtf/Condition.h:75
>        result = <optimized out>
>        result = <optimized out>
>#7  WTF::Condition::waitFor<WTF::Lock> (relativeTimeout=..., lock=..., this=0x7fbf43e2cbb3) at ../Source/WTF/wtf/Condition.h:115
>No locals.
>#8  WTF::AutomaticThread::<lambda()>::operator() (__closure=<optimized out>) at ../Source/WTF/wtf/AutomaticThread.cpp:208
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbfcc2fc01c}
>        result = <optimized out>
>        thread = {static isRefPtr = <optimized out>, m_ptr = 0x7fbf43e2cb88}
>        stopImpl = <optimized out>
>        stopPermanently = {__this = 0x7fbf43e2cb88, __stopImpl = <synthetic pointer><error reading variable>}
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        thread = <optimized out>
>        stopImpl = <optimized out>
>        stopPermanently = <optimized out>
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = <optimized out>
>#9  WTF::Function<void()>::CallableWrapper<WTF::AutomaticThread::start(const WTF::AbstractLocker&)::<lambda()> >::call(void) (this=0x7fbf129af1e0) at ../Source/WTF/wtf/Function.h:102
>No locals.
>#10 0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#11 WTF::Thread::entryPoint (newThreadContext=0x7fbf129a90a0) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbf129af1e0}, <No data fields>}, <No data fields>}}}}
>#12 0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#13 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140459714275072, -4218221837731311329, 140736297371534, 140736297371535, 140736297371680, 140459714272320, 4182572098276479263, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#14 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 40 (Thread 0x7fbeeeffd700 (LWP 13967)):
>#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x7fbef40187e4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
>        __ret = -512
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7fbef4018790, cond=0x7fbef40187b8) at pthread_cond_wait.c:502
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbeeeffcb00, __canceltype = 360, __prev = 0x0}
>        cbuffer = {wseq = 71, cond = 0x7fbef40187b8, mutex = 0x7fbef4018790, private = 0}
>        rt = <optimized out>
>        err = <optimized out>
>        g = 1
>        flags = <optimized out>
>        g1_start = <optimized out>
>        signals = <optimized out>
>        result = 0
>        wseq = 71
>        seq = 35
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_wait (cond=0x7fbef40187b8, mutex=0x7fbef4018790) at pthread_cond_wait.c:655
>No locals.
>#3  0x00007fbefca3e1cc in thread_loop (ptr=0x7fbef402e2d0) at vpx_util/vpx_thread.c:38
>        worker = 0x7fbef402e2d0
>        done = 0
>#4  0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140458030257920, -4218221837731311329, 140458280856142, 140458280856143, 140458280856144, 140458030255168, 4181592708830908703, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#5  0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 41 (Thread 0x7fbefeefe700 (LWP 13962)):
>#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
>No locals.
>#1  0x00007fbfe1370073 in g_cond_wait (cond=cond@entry=0x7fbef8026318, mutex=mutex@entry=0x7fbef80262f0) at ../glib/gthread-posix.c:1413
>        sampled = 11
>#2  0x00007fbf763cf15e in gst_queue_chain_buffer_or_list (parent=0x7fbef8026070, obj=0x7fbef0050360, is_list=0, pad=<optimized out>) at gstqueue.c:1247
>        queue = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_queue_chain_buffer_or_list"
>#3  0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef8065610, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4326
>        chainfunc = 0x7fbf763cfab0 <gst_queue_chain>
>        ret = <optimized out>
>        parent = 0x7fbef8026070
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#4  0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b301484ef0, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4582
>        peer = 0x7fbef8065610
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#5  0x00007fbfdf288b33 in gst_pad_push (pad=0x55b301484ef0, buffer=0x7fbef0050360) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#6  0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x55b30148df80, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x55b30148df80
>        klass = 0x55b30148cd00
>        priv = 0x55b30148deb0
>        ret = <optimized out>
>        position = 2694500000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbef0050360
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#7  0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b301484ca0, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x55b30148df80
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#8  0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef80653c0, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4582
>        peer = 0x55b301484ca0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#9  0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbef80653c0, buffer=0x7fbef0050360) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#10 0x00007fbfdf3921c0 in gst_base_transform_chain (pad=<optimized out>, parent=0x7fbef8080380, buffer=<optimized out>) at gstbasetransform.c:2330
>        position_out = <optimized out>
>        trans = 0x7fbef8080380
>        klass = 0x55b301479ca0
>        priv = 0x7fbef80802b0
>        ret = <optimized out>
>        position = 2694500000
>        timestamp = <optimized out>
>        duration = <optimized out>
>        outbuf = 0x7fbef0050360
>        __PRETTY_FUNCTION__ = "gst_base_transform_chain"
>#11 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef8065170, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4326
>        chainfunc = 0x7fbfdf391ff0 <gst_base_transform_chain>
>        ret = <optimized out>
>        parent = 0x7fbef8080380
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#12 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef807a2e0, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4582
>        peer = 0x7fbef8065170
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#13 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x7fbef807a2e0, buffer=buffer@entry=0x7fbef0050360) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#14 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbef0050360) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x7fbef807a2e0
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#15 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef80239c0, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x55b30144fad0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#16 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef80851c0, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4582
>        peer = 0x7fbef80239c0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#17 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x7fbef80851c0, buffer=buffer@entry=0x7fbef0050360) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#18 0x00007fbf765acec8 in gst_stream_synchronizer_sink_chain (pad=0x7fbef8084f70, parent=0x55b30144e0c0, buffer=0x7fbef0050360) at gststreamsynchronizer.c:716
>        self = 0x55b30144e0c0
>        opad = 0x7fbef80851c0
>        ret = GST_FLOW_ERROR
>        stream = <optimized out>
>        duration = <optimized out>
>        timestamp = 2674500000
>        timestamp_end = 2694500000
>        __PRETTY_FUNCTION__ = "gst_stream_synchronizer_sink_chain"
>#19 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef8084f70, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4326
>        chainfunc = 0x7fbf765acba0 <gst_stream_synchronizer_sink_chain>
>        ret = <optimized out>
>        parent = 0x55b30144e0c0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#20 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef807a530, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4582
>        peer = 0x7fbef8084f70
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#21 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbef807a530, buffer=0x7fbef0050360) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#22 0x00007fbf763dd2f1 in gst_tee_handle_data (tee=tee@entry=0x7fbef413b2a0, data=data@entry=0x7fbef0050360, is_list=is_list@entry=0) at gsttee.c:899
>        pad = 0x7fbef807a530
>        pads = <optimized out>
>        cookie = <optimized out>
>        ret = <optimized out>
>        cret = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_tee_handle_data"
>#23 0x00007fbf763dd48d in gst_tee_chain (pad=<optimized out>, parent=0x7fbef413b2a0, buffer=0x7fbef0050360) at gsttee.c:1022
>        res = <optimized out>
>        tee = 0x7fbef413b2a0
>        __PRETTY_FUNCTION__ = "gst_tee_chain"
>#24 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbf4c00bc20, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4326
>        chainfunc = 0x7fbf763dd430 <gst_tee_chain>
>        ret = <optimized out>
>        parent = 0x7fbef413b2a0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#25 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef4008cb0, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4582
>        peer = 0x7fbf4c00bc20
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#26 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x7fbef4008cb0, buffer=buffer@entry=0x7fbef0050360) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#27 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbef0050360) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x7fbef4008cb0
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#28 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef8022340, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x55b30144c270
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#29 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbf4c00b9d0, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4582
>        peer = 0x7fbef8022340
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#30 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbf4c00b9d0, buffer=buffer@entry=0x7fbef0050360) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#31 0x00007fbf763c01bf in gst_selector_pad_chain (pad=0x55b30147b850, parent=0x7fbef42165f0, buf=0x7fbef0050360) at gstinputselector.c:1132
>        sel = 0x7fbef42165f0
>        res = <optimized out>
>        active_sinkpad = <optimized out>
>        prev_active_sinkpad = 0x0
>        selpad = 0x55b30147b850
>        __PRETTY_FUNCTION__ = "gst_selector_pad_chain"
>#32 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b30147b850, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4326
>        chainfunc = 0x7fbf763bf790 <gst_selector_pad_chain>
>        ret = <optimized out>
>        parent = 0x7fbef42165f0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#33 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbef80220c0, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4582
>        peer = 0x55b30147b850
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#34 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x7fbef80220c0, buffer=buffer@entry=0x7fbef0050360) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#35 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbef0050360) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x7fbef80220c0
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#36 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef4008a50, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x7fbef80220c0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#37 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b300943580, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4582
>        peer = 0x7fbef4008a50
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#38 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x55b300943580, buffer=buffer@entry=0x7fbef0050360) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#39 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbef0050360) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x55b300943580
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#40 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbef40087f0, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x55b300943580
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#41 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbf4c00b780, type=type@entry=4112, data=data@entry=0x7fbef0050360) at gstpad.c:4582
>        peer = 0x7fbef40087f0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#42 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbf4c00b780, buffer=0x7fbef0050360) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#43 0x00007fbfdf17b96c in gst_audio_decoder_push_forward (dec=dec@entry=0x7fbef800e200, buf=<optimized out>) at gstaudiodecoder.c:1012
>        klass = <optimized out>
>        priv = <optimized out>
>        ctx = <optimized out>
>        ret = <optimized out>
>        ts = <optimized out>
>        __FUNCTION__ = "gst_audio_decoder_push_forward"
>        __PRETTY_FUNCTION__ = "gst_audio_decoder_push_forward"
>#44 0x00007fbfdf17bd6c in gst_audio_decoder_output (dec=dec@entry=0x7fbef800e200, buf=<optimized out>, buf@entry=0x7fbef0050360) at gstaudiodecoder.c:1089
>        priv = 0x7fbef800df30
>        ret = <optimized out>
>        inbuf = 0x0
>        __PRETTY_FUNCTION__ = "gst_audio_decoder_output"
>#45 0x00007fbfdf17e89c in gst_audio_decoder_finish_frame_or_subframe (dec=dec@entry=0x7fbef800e200, buf=buf@entry=0x7fbef0050360, frames=<optimized out>, frames@entry=1) at gstaudiodecoder.c:1512
>        priv = 0x7fbef800df30
>        ctx = <optimized out>
>        klass = 0x7fbef800dc30
>        meta = <optimized out>
>        ts = <optimized out>
>        next_ts = <optimized out>
>        size = <optimized out>
>        samples = <optimized out>
>        ret = <optimized out>
>        inbufs = {head = 0x55b300b51ae0, tail = 0x55b300b51ae0, length = 1}
>        is_subframe = 0
>        do_check_resync = <optimized out>
>        __FUNCTION__ = "gst_audio_decoder_finish_frame_or_subframe"
>        __PRETTY_FUNCTION__ = "gst_audio_decoder_finish_frame_or_subframe"
>#46 0x00007fbfdf1830e8 in gst_audio_decoder_finish_frame (dec=dec@entry=0x7fbef800e200, buf=buf@entry=0x7fbef0050360, frames=frames@entry=1) at gstaudiodecoder.c:1296
>        __FUNCTION__ = "gst_audio_decoder_finish_frame"
>#47 0x00007fbf75b9ed22 in opus_dec_chain_parse_data (dec=dec@entry=0x7fbef800e200, buffer=buffer@entry=0x7fbef800f240) at gstopusdec.c:769
>        res = GST_FLOW_OK
>        size = <optimized out>
>        data = <optimized out>
>        outbuf = <optimized out>
>        bufd = <optimized out>
>        out_data = <optimized out>
>        n = <optimized out>
>        err = 32703
>        samples = <optimized out>
>        packet_size = <optimized out>
>        buf = <optimized out>
>        map = {memory = 0x7fbf4c0429b0, flags = GST_MAP_READ, data = 0x7fbf13b3c9cc "\374\332\334\211\206\016\322\271>WY\301Qg\354\t\214\363\372\225\276\312\252\bp\027\067\314r\314\061lv\273\017\324\t<C\273\a\354\207$Eb\252\374f\177\b\335\247\017 \224\206\274UJ\322%\n0\353\062@\253Oo\341\211\212tY\020\v)\354e\301A\247\246\214V\320\060\062\334U\033\022\356\001\037\257~t\302\220\252\341\317\r", size = 370, maxsize = 18575, user_data = {0x7fbf4c0429b0, 0x7fbf4c0429b0, 0x9e5083e0f8bcfd00, 0x0}, _gst_reserved = {0x30, 0x7fbf4c022360, 0x7fbef800f240, 0x0}}
>        omap = {memory = 0x7fbeea460000, flags = GST_MAP_WRITE, data = 0x7fbeea460078 "\206\002\321", size = 23040, maxsize = 23040, user_data = {0x7fbfdf245de5 <gst_buffer_get_sizes_range+405>, 0x172, 0x172, 0x7fbfdf34a6c0 <_gst_debug_min>}, _gst_reserved = {0x0, 0x7fbef800f240, 0x7fbef800f240, 0x172}}
>        cmeta = <optimized out>
>        __PRETTY_FUNCTION__ = "opus_dec_chain_parse_data"
>        __FUNCTION__ = "opus_dec_chain_parse_data"
>#48 0x00007fbf75ba015b in gst_opus_dec_handle_frame (adec=0x7fbef800e200, buf=0x7fbef800f240) at gstopusdec.c:935
>        res = <optimized out>
>        dec = 0x7fbef800e200
>        __PRETTY_FUNCTION__ = "gst_opus_dec_handle_frame"
>#49 0x00007fbfdf17faef in gst_audio_decoder_push_buffers (dec=dec@entry=0x7fbef800e200, force=force@entry=0) at gstaudiodecoder.c:1698
>        klass = <optimized out>
>        priv = 0x7fbef800df30
>        ctx = 0x7fbef800dff8
>        ret = <optimized out>
>        buffer = <optimized out>
>        av = 370
>        flush = 370
>        __FUNCTION__ = "gst_audio_decoder_push_buffers"
>        __PRETTY_FUNCTION__ = "gst_audio_decoder_push_buffers"
>        _g_boolean_var_ = <optimized out>
>#50 0x00007fbfdf17fe73 in gst_audio_decoder_chain_forward (dec=dec@entry=0x7fbef800e200, buffer=0x0, buffer@entry=0x7fbf4c043120) at gstaudiodecoder.c:1812
>        ret = GST_FLOW_OK
>        __PRETTY_FUNCTION__ = "gst_audio_decoder_chain_forward"
>#51 0x00007fbfdf1810f6 in gst_audio_decoder_chain (pad=<optimized out>, parent=0x7fbef800e200, buffer=0x7fbf4c043120) at gstaudiodecoder.c:2072
>        dec = 0x7fbef800e200
>        ret = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_audio_decoder_chain"
>#52 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbf4c00b530, type=type@entry=4112, data=data@entry=0x7fbf4c043120) at gstpad.c:4326
>        chainfunc = 0x7fbfdf180e90 <gst_audio_decoder_chain>
>        ret = <optimized out>
>        parent = 0x7fbef800e200
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#53 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x7fbf4c00a500, type=type@entry=4112, data=data@entry=0x7fbf4c043120) at gstpad.c:4582
>        peer = 0x7fbf4c00b530
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#54 0x00007fbfdf288b33 in gst_pad_push (pad=0x7fbf4c00a500, buffer=0x7fbf4c043120) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#55 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x7fbf4c00a2b0, type=type@entry=4112, data=data@entry=0x7fbf4c043120) at gstpad.c:4326
>        chainfunc = 0x7fbf763e10a0 <gst_type_find_element_chain>
>        ret = <optimized out>
>        parent = 0x55b300913460
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#56 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b301459690, type=type@entry=4112, data=data@entry=0x7fbf4c043120) at gstpad.c:4582
>        peer = 0x7fbf4c00a2b0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#57 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x55b301459690, buffer=buffer@entry=0x7fbf4c043120) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#58 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=<optimized out>, parent=<optimized out>, buffer=0x7fbf4c043120) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x55b301459690
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#59 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b3014572d0, type=type@entry=4112, data=data@entry=0x7fbf4c043120) at gstpad.c:4326
>        chainfunc = 0x7fbfdf26ead0 <gst_proxy_pad_chain_default>
>        ret = <optimized out>
>        parent = 0x55b30142a5c0
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#60 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b301457050, type=type@entry=4112, data=data@entry=0x7fbf4c043120) at gstpad.c:4582
>        peer = 0x55b3014572d0
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#61 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x55b301457050, buffer=buffer@entry=0x7fbf4c043120) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#62 0x00007fbfdf26eb9b in gst_proxy_pad_chain_default (pad=pad@entry=0x55b301459430, parent=<optimized out>, buffer=buffer@entry=0x7fbf4c043120) at gstghostpad.c:127
>        res = <optimized out>
>        internal = 0x55b301457050
>        __FUNCTION__ = "gst_proxy_pad_chain_default"
>#63 0x00007fbfe2e6d930 in webkitMediaSrcChain (pad=0x55b301459430, parent=0x55b301457050, buffer=0x7fbf4c043120) at ../Source/WebCore/platform/graphics/gstreamer/mse/WebKitMediaSourceGStreamer.cpp:250
>        self = {m_ptr = 0x55b3014b0100}
>#64 0x00007fbfdf27fd3f in gst_pad_chain_data_unchecked (pad=pad@entry=0x55b301459430, type=type@entry=4112, data=data@entry=0x7fbf4c043120) at gstpad.c:4326
>        chainfunc = 0x7fbfe2e6d8c0 <webkitMediaSrcChain(GstPad*, GstObject*, GstBuffer*)>
>        ret = <optimized out>
>        parent = 0x55b301457050
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_chain_data_unchecked"
>        _g_boolean_var_ = <optimized out>
>        _g_boolean_var_ = <optimized out>
>#65 0x00007fbfdf281d71 in gst_pad_push_data (pad=pad@entry=0x55b301485cd0, type=type@entry=4112, data=data@entry=0x7fbf4c043120) at gstpad.c:4582
>        peer = 0x55b301459430
>        ret = GST_FLOW_OK
>        handled = 0
>        __PRETTY_FUNCTION__ = "gst_pad_push_data"
>#66 0x00007fbfdf288b33 in gst_pad_push (pad=pad@entry=0x55b301485cd0, buffer=0x7fbf4c043120) at gstpad.c:4701
>        res = <optimized out>
>        __FUNCTION__ = "gst_pad_push"
>#67 0x00007fbfdf38dd55 in gst_base_src_loop (pad=0x55b301485cd0) at gstbasesrc.c:2974
>        src = 0x55b3014c1260
>        buf = 0x7fbf4c043120
>        ret = <optimized out>
>        position = <optimized out>
>        eos = 0
>        blocksize = <optimized out>
>        pending_events = <optimized out>
>        tmp = <optimized out>
>        __PRETTY_FUNCTION__ = "gst_base_src_loop"
>        __FUNCTION__ = "gst_base_src_loop"
>#68 0x00007fbfdf2b6e57 in gst_task_func (task=0x55b3014535f0) at gsttask.c:328
>        lock = 0x55b301485d40
>        tself = 0x55b30149d800
>        priv = 0x55b3014535a0
>        __PRETTY_FUNCTION__ = "gst_task_func"
>#69 0x00007fbfe134e184 in g_thread_pool_thread_proxy (data=<optimized out>) at ../glib/gthreadpool.c:308
>        task = 0x7fbf48581ab0
>        pool = 0x55b300ac7700
>#70 0x00007fbfe134d752 in g_thread_proxy (data=0x55b30149d800) at ../glib/gthread.c:805
>        thread = 0x55b30149d800
>        __FUNCTION__ = "g_thread_proxy"
>#71 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140458297648896, -4218221837731311329, 140736297371550, 140736297371551, 140736297371696, 140458297646144, 4181627755227173151, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#72 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>
>Thread 42 (Thread 0x7fbf411fe700 (LWP 13946)):
>#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fbf411fd970, expected=0, futex_word=0x7fbf420cede0) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
>        __ret = -516
>        oldtype = 0
>        err = <optimized out>
>        oldtype = <optimized out>
>        err = <optimized out>
>        __ret = <optimized out>
>        resultvar = <optimized out>
>        __arg6 = <optimized out>
>        __arg5 = <optimized out>
>        __arg4 = <optimized out>
>        __arg3 = <optimized out>
>        __arg2 = <optimized out>
>        __arg1 = <optimized out>
>        _a6 = <optimized out>
>        _a5 = <optimized out>
>        _a4 = <optimized out>
>        _a3 = <optimized out>
>        _a2 = <optimized out>
>        _a1 = <optimized out>
>#1  __pthread_cond_wait_common (abstime=0x7fbf411fd970, mutex=0x7fbf420ced90, cond=0x7fbf420cedb8) at pthread_cond_wait.c:539
>        spin = 0
>        buffer = {__routine = 0x7fbfdf602260 <__condvar_cleanup_waiting>, __arg = 0x7fbf411fd8f0, __canceltype = 1092606256, __prev = 0x0}
>        cbuffer = {wseq = 56, cond = 0x7fbf420cedb8, mutex = 0x7fbf420ced90, private = 0}
>        err = <optimized out>
>        g = 0
>        flags = 0
>        g1_start = <optimized out>
>        maxspin = 0
>        signals = <optimized out>
>        result = 0
>        wseq = 56
>        seq = 28
>        private = 0
>        maxspin = <optimized out>
>        err = <optimized out>
>        result = <optimized out>
>        wseq = <optimized out>
>        g = <optimized out>
>        seq = <optimized out>
>        flags = <optimized out>
>        private = <optimized out>
>        signals = <optimized out>
>        g1_start = <optimized out>
>        spin = <optimized out>
>        buffer = <optimized out>
>        cbuffer = <optimized out>
>        rt = <optimized out>
>        s = <optimized out>
>#2  __pthread_cond_timedwait (cond=0x7fbf420cedb8, mutex=0x7fbf420ced90, abstime=0x7fbf411fd970) at pthread_cond_wait.c:667
>No locals.
>#3  0x00007fbfe0d154ff in WTF::ThreadCondition::timedWait (this=this@entry=0x7fbf420cedb8, mutex=..., absoluteTime=...) at ../Source/WTF/wtf/ThreadingPrimitives.h:74
>        rawSeconds = 1556727098.4790871
>        timeSeconds = 1556727098
>        timeNanoseconds = 479087114
>        targetTime = {tv_sec = 1556727098, tv_nsec = 479087114}
>#4  0x00007fbfe0cc72c3 in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&) (address=address@entry=0x7fbf42446ad3, validation=..., beforeSleep=..., timeout=...) at ../Source/WTF/wtf/ParkingLot.cpp:596
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf420ced90}
>        me = <optimized out>
>        enqueueResult = <optimized out>
>        didGetDequeued = <optimized out>
>        didDequeue = <optimized out>
>        result = <optimized out>
>#5  0x00007fbfe0cb421e in WTF::ParkingLot::parkConditionally<WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1}, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2}>(void const*, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#1} const&, WTF::Condition::waitUntil<WTF::Lock>(WTF::Lock&, WTF::TimeWithDynamicClockType const&)::{lambda()#2} const&, WTF::TimeWithDynamicClockType const&) (timeout=..., beforeSleep=..., validation=..., address=0x7fbf42446ad3) at ../Source/WTF/wtf/ScopedLambda.h:187
>No locals.
>#6  WTF::Condition::waitUntil<WTF::Lock> (timeout=..., lock=..., this=0x7fbf42446ad3) at ../Source/WTF/wtf/Condition.h:75
>        result = <optimized out>
>        result = <optimized out>
>#7  WTF::Condition::waitFor<WTF::Lock> (relativeTimeout=..., lock=..., this=0x7fbf42446ad3) at ../Source/WTF/wtf/Condition.h:115
>No locals.
>#8  WTF::AutomaticThread::<lambda()>::operator() (__closure=<optimized out>) at ../Source/WTF/wtf/AutomaticThread.cpp:208
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = {<WTF::AbstractLocker> = {<No data fields>}, m_lockable = 0x7fbf4243d694}
>        result = <optimized out>
>        thread = {static isRefPtr = <optimized out>, m_ptr = 0x7fbf42446aa8}
>        stopImpl = <optimized out>
>        stopPermanently = {__this = 0x7fbf42446aa8, __stopImpl = <synthetic pointer><error reading variable>}
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        this = <optimized out>
>        preserveThisForThread = <optimized out>
>        thread = <optimized out>
>        stopImpl = <optimized out>
>        stopPermanently = <optimized out>
>        stopForTimeout = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        locker = <optimized out>
>        result = <optimized out>
>        awokenByNotify = <optimized out>
>        locker = <optimized out>
>#9  WTF::Function<void()>::CallableWrapper<WTF::AutomaticThread::start(const WTF::AbstractLocker&)::<lambda()> >::call(void) (this=0x7fbf420f05a0) at ../Source/WTF/wtf/Function.h:102
>No locals.
>#10 0x00007fbfe0ccafb8 in WTF::Function<void ()>::operator()() const (this=<synthetic pointer>) at ../Source/WTF/wtf/Function.h:54
>No locals.
>#11 WTF::Thread::entryPoint (newThreadContext=0x7fbf42429550) at ../Source/WTF/wtf/Threading.cpp:136
>        function = {m_callableWrapper = {_M_t = {_M_t = {<std::_Tuple_impl<0, WTF::Function<void()>::CallableWrapperBase*, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Tuple_impl<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase> >> = {<std::_Head_base<1, std::default_delete<WTF::Function<void()>::CallableWrapperBase>, true>> = {<std::default_delete<WTF::Function<void()>::CallableWrapperBase>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, WTF::Function<void()>::CallableWrapperBase*, false>> = {_M_head_impl = 0x7fbf420f05a0}, <No data fields>}, <No data fields>}}}}
>#12 0x00007fbfe0d14a9d in WTF::wtfThreadEntryPoint (context=<optimized out>) at ../Source/WTF/wtf/posix/ThreadingPOSIX.cpp:200
>No locals.
>#13 0x00007fbfdf5fc5a2 in start_thread (arg=<optimized out>) at pthread_create.c:486
>        ret = <optimized out>
>        pd = <optimized out>
>        now = <optimized out>
>        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140459408090880, -4218221837731311329, 140736297369374, 140736297369375, 140736297369520, 140459408088128, 4182541861706715423, 4182264235884597535}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
>        not_first_call = <optimized out>
>#14 0x00007fbfe21ad023 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>No locals.
>From                To                  Syms Read   Shared Object Library
>0x00007fbfe2900f90  0x00007fbfe47083c2  Yes         /lib64/libwebkit2gtk-4.0.so.37
>0x00007fbfe22845c0  0x00007fbfe235251c  Yes         /lib64/libgcrypt.so.20
>0x00007fbfe20d4670  0x00007fbfe221f1ff  Yes         /lib64/libc.so.6
>0x00007fbfe2061410  0x00007fbfe2064b9c  Yes         /lib64/libGL.so.1
>0x00007fbfe200b8b0  0x00007fbfe2016247  Yes         /lib64/libEGL.so.1
>0x00007fbfe2000710  0x00007fbfe2003ab0  Yes         /lib64/librt.so.1
>0x00007fbfe1984ed0  0x00007fbfe1cdddeb  Yes         /lib64/libgtk-3.so.0
>0x00007fbfe181d290  0x00007fbfe1894f3b  Yes         /lib64/libgdk-3.so.0
>0x00007fbfe17b13d0  0x00007fbfe17d2f74  Yes         /lib64/libpango-1.0.so.0
>0x00007fbfe1784d50  0x00007fbfe17927df  Yes         /lib64/libatk-1.0.so.0
>0x00007fbfe166acf0  0x00007fbfe173712e  Yes         /lib64/libcairo.so.2
>0x00007fbfe1632cd0  0x00007fbfe164947d  Yes         /lib64/libgdk_pixbuf-2.0.so.0
>0x00007fbfe14921f0  0x00007fbfe15954b6  Yes         /lib64/libgio-2.0.so.0
>0x00007fbfe1405eb0  0x00007fbfe1437a4e  Yes         /lib64/libgobject-2.0.so.0
>0x00007fbfe12f0b30  0x00007fbfe13707d2  Yes         /lib64/libglib-2.0.so.0
>0x00007fbfe12cda90  0x00007fbfe12cff71  Yes         /lib64/libnotify.so.4
>0x00007fbfe118e9d0  0x00007fbfe127347e  Yes         /lib64/libxml2.so.2
>0x00007fbfe1127d50  0x00007fbfe114d3cb  Yes         /lib64/libxslt.so.1
>0x00007fbfe10138f0  0x00007fbfe10e1784  No          /lib64/libsqlite3.so.0
>0x00007fbfdff6f550  0x00007fbfe0d263b2  Yes         /lib64/libjavascriptcoregtk-4.0.so.18
>0x00007fbfdfb34270  0x00007fbfdfb35029  Yes         /lib64/libdl.so.2
>0x00007fbfdf9c28b0  0x00007fbfdfa99587  No          /lib64/libicuuc.so.63
>0x00007fbfdf75b9f0  0x00007fbfdf8cb712  Yes         /lib64/libicui18n.so.63
>0x00007fbfdf66e6b0  0x00007fbfdf6749d8  Yes         /lib64/libwoff2dec.so.1.0.2
>0x00007fbfdf61ebf0  0x00007fbfdf6583a3  Yes         /lib64/libopenjp2.so.7
>0x00007fbfdf5fab50  0x00007fbfdf608f05  Yes         /lib64/libpthread.so.0
>0x00007fbfdf5b5010  0x00007fbfdf5d829e  Yes         /lib64/libfontconfig.so.1
>0x00007fbfdf4fe410  0x00007fbfdf57af73  Yes         /lib64/libfreetype.so.6
>0x00007fbfdf3edd10  0x00007fbfdf4a79c2  Yes         /lib64/libharfbuzz.so.0
>0x00007fbfdf3df370  0x00007fbfdf3df932  Yes         /lib64/libharfbuzz-icu.so.0
>0x00007fbfdf3cef50  0x00007fbfdf3d586e  Yes         /lib64/libgstapp-1.0.so.0
>0x00007fbfdf35d050  0x00007fbfdf3a6ebd  Yes         /lib64/libgstbase-1.0.so.0
>0x00007fbfdf2364b0  0x00007fbfdf2e32af  Yes         /lib64/libgstreamer-1.0.so.0
>0x00007fbfdf1d73f0  0x00007fbfdf1f0c3e  Yes         /lib64/libgstpbutils-1.0.so.0
>0x00007fbfdf15b1b0  0x00007fbfdf1a16fd  Yes         /lib64/libgstaudio-1.0.so.0
>0x00007fbfdf116750  0x00007fbfdf133f6e  Yes         /lib64/libgsttag-1.0.so.0
>0x00007fbfdf071510  0x00007fbfdf0d216e  Yes         /lib64/libgstvideo-1.0.so.0
>0x00007fbfdeffd690  0x00007fbfdf031380  Yes         /lib64/libgstgl-1.0.so.0
>0x00007fbfdefda1d0  0x00007fbfdefe163f  Yes         /lib64/libgstfft-1.0.so.0
>0x00007fbfdef58520  0x00007fbfdef9b099  Yes         /lib64/libjpeg.so.62
>0x00007fbfdef24230  0x00007fbfdef46785  Yes         /lib64/libpng16.so.16
>0x00007fbfdeeaf710  0x00007fbfdef05190  Yes         /lib64/libwebp.so.7
>0x00007fbfdeea4250  0x00007fbfdeea5ff5  Yes         /lib64/libwebpdemux.so.2
>0x00007fbfdee98c50  0x00007fbfdee9d6d9  Yes         /lib64/libenchant-2.so.2
>0x00007fbfdee90450  0x00007fbfdee91333  Yes         /lib64/libgmodule-2.0.so.0
>0x00007fbfdee489d0  0x00007fbfdee74736  Yes         /lib64/libsecret-1.so.0
>0x00007fbfdedc36b0  0x00007fbfdee0d3d7  Yes         /lib64/libsoup-2.4.so.1
>0x00007fbfded8e6b0  0x00007fbfded99263  Yes         /lib64/libtasn1.so.6
>0x00007fbfded82410  0x00007fbfded850c2  Yes         /lib64/libhyphen.so.0
>0x00007fbfdec5d350  0x00007fbfdece5ed6  Yes         /lib64/libX11.so.6
>0x00007fbfdec38190  0x00007fbfdec38be5  Yes         /lib64/libXcomposite.so.1
>0x00007fbfdec331f0  0x00007fbfdec33b6b  Yes         /lib64/libXdamage.so.1
>0x00007fbfdec1b5f0  0x00007fbfdec28878  Yes         /lib64/libz.so.1
>0x00007fbfdec08c10  0x00007fbfdec0f155  No          /lib64/libwayland-server.so.0
>0x00007fbfdebfb090  0x00007fbfdebfb229  No          /lib64/libwayland-egl.so.1
>0x00007fbfdebee890  0x00007fbfdebf35a5  No          /lib64/libwayland-client.so.0
>0x00007fbfdea8ef50  0x00007fbfdeb88e42  No          /lib64/libstdc++.so.6
>0x00007fbfde8b9390  0x00007fbfde954bf8  Yes         /lib64/libm.so.6
>0x00007fbfde8955f0  0x00007fbfde8a5a85  No          /lib64/libgcc_s.so.1
>0x00007fbfe51cd110  0x00007fbfe51ec6e4  Yes         /lib64/ld-linux-x86-64.so.2
>0x00007fbfde871cf0  0x00007fbfde883d22  Yes         /lib64/libgpg-error.so.0
>0x00007fbfde83c890  0x00007fbfde84691c  Yes         /lib64/libGLX.so.0
>0x00007fbfde828770  0x00007fbfde8329b3  Yes         /lib64/libXext.so.6
>0x00007fbfde7a74d0  0x00007fbfde7aa3bb  Yes         /lib64/libGLdispatch.so.0
>0x00007fbfde75c610  0x00007fbfde761ae6  Yes         /lib64/libpangocairo-1.0.so.0
>0x00007fbfde7464b0  0x00007fbfde750ceb  Yes         /lib64/libXi.so.6
>0x00007fbfde73b350  0x00007fbfde73d73a  Yes         /lib64/libXfixes.so.3
>0x00007fbfde731110  0x00007fbfde73227d  Yes         /lib64/libcairo-gobject.so.2
>0x00007fbfde705930  0x00007fbfde71a692  Yes         /lib64/libatk-bridge-2.0.so.0
>0x00007fbfde620230  0x00007fbfde685f3e  Yes         /lib64/libepoxy.so.0
>0x00007fbfde5a52d0  0x00007fbfde5a9431  Yes         /lib64/libfribidi.so.0
>0x00007fbfde592030  0x00007fbfde59b6e1  Yes         /lib64/libpangoft2-1.0.so.0
>0x00007fbfde5831f0  0x00007fbfde583b71  Yes         /lib64/libXinerama.so.1
>0x00007fbfde577410  0x00007fbfde57d709  Yes         /lib64/libXrandr.so.2
>0x00007fbfde56bbb0  0x00007fbfde570718  Yes         /lib64/libXcursor.so.1
>0x00007fbfde52aa10  0x00007fbfde5454ae  Yes         /lib64/libxkbcommon.so.0
>0x00007fbfde51d470  0x00007fbfde51efa7  No          /lib64/libwayland-cursor.so.0
>0x00007fbfde512510  0x00007fbfde516087  Yes         /lib64/libthai.so.0
>0x00007fbfde471ab0  0x00007fbfde4f45c4  Yes         /lib64/libpixman-1.so.0
>0x00007fbfde4620f0  0x00007fbfde462c47  Yes         /lib64/libxcb-shm.so.0
>0x00007fbfde442d90  0x00007fbfde455b69  Yes         /lib64/libxcb.so.1
>0x00007fbfde42b430  0x00007fbfde43018c  Yes         /lib64/libxcb-render.so.0
>0x00007fbfde41b4b0  0x00007fbfde4216a2  Yes         /lib64/libXrender.so.1
>0x00007fbfde3c6590  0x00007fbfde401352  No          /lib64/libmount.so.1
>0x00007fbfde390850  0x00007fbfde3a8680  Yes         /lib64/libselinux.so.1
>0x00007fbfde372730  0x00007fbfde37e5a0  Yes         /lib64/libresolv.so.2
>0x00007fbfde3652c0  0x00007fbfde369d84  Yes         /lib64/libffi.so.6
>0x00007fbfde2f1390  0x00007fbfde341b7e  Yes         /lib64/libpcre.so.1
>0x00007fbfde2c99f0  0x00007fbfde2e0986  Yes         /lib64/liblzma.so.5
>0x00007fbfdc8d5040  0x00007fbfdc8d50f9  Yes (*)     /lib64/libicudata.so.63
>0x00007fbfdc8d01b0  0x00007fbfdc8d0860  Yes         /lib64/libwoff2common.so.1.0.2
>0x00007fbfdc8c1190  0x00007fbfdc8c8144  Yes         /lib64/libbrotlidec.so.1
>0x00007fbfdc8963f0  0x00007fbfdc8b1557  Yes         /lib64/libexpat.so.1
>0x00007fbfdc88a610  0x00007fbfdc88e011  No          /lib64/libuuid.so.1
>0x00007fbfdc876530  0x00007fbfdc8831e6  No          /lib64/libbz2.so.1
>0x00007fbfdc8473f0  0x00007fbfdc868151  Yes         /lib64/libgraphite2.so.3
>0x00007fbfdc7cf530  0x00007fbfdc81c097  Yes         /lib64/liborc-0.4.so.0
>0x00007fbfdc7bf430  0x00007fbfdc7c0359  Yes         /lib64/libgstallocators-1.0.so.0
>0x00007fbfdc7af3f0  0x00007fbfdc7b030c  Yes         /lib64/libGLESv2.so.2
>0x00007fbfdc7a3050  0x00007fbfdc7a312f  Yes         /lib64/libX11-xcb.so.1
>0x00007fbfdc75cab0  0x00007fbfdc78fe2f  Yes         /lib64/libgssapi_krb5.so.2
>0x00007fbfdc73d470  0x00007fbfdc73ee96  Yes         /lib64/libpsl.so.5
>0x00007fbfdc6f5b10  0x00007fbfdc7223b5  No          /lib64/libdbus-1.so.3
>0x00007fbfdc6bf950  0x00007fbfdc6d231c  Yes         /lib64/libatspi.so.0
>0x00007fbfdc6a4470  0x00007fbfdc6a76c0  Yes         /lib64/libdatrie.so.1
>0x00007fbfdc69d3d0  0x00007fbfdc69e0a2  Yes         /lib64/libXau.so.6
>0x00007fbfdc651e70  0x00007fbfdc684ef2  No          /lib64/libblkid.so.1
>0x00007fbfdc5ba490  0x00007fbfdc61bbd1  Yes         /lib64/libpcre2-8.so.0
>0x00007fbfdc596050  0x00007fbfdc596347  Yes         /lib64/libbrotlicommon.so.1
>0x00007fbfdc4ca2d0  0x00007fbfdc5359ec  Yes         /lib64/libkrb5.so.3
>0x00007fbfdc488f10  0x00007fbfdc4976a4  No          /lib64/libk5crypto.so.3
>0x00007fbfdc47e550  0x00007fbfdc47f199  No          /lib64/libcom_err.so.2
>0x00007fbfdc46efd0  0x00007fbfdc476b8f  No          /lib64/libkrb5support.so.0
>0x00007fbfdc204000  0x00007fbfdc3a7070  Yes         /lib64/libcrypto.so.1.1
>0x00007fbfdc1853f0  0x00007fbfdc1863ec  No          /lib64/libkeyutils.so.1
>0x00007fbfdc1635b0  0x00007fbfdc1670d7  Yes         /lib64/libidn2.so.0
>0x00007fbfdbff0230  0x00007fbfdc024c1f  Yes         /lib64/libunistring.so.2
>0x00007fbfdbf3f890  0x00007fbfdbfaf344  Yes         /lib64/libsystemd.so.0
>0x00007fbfdbf10550  0x00007fbfdbf2753b  No          /lib64/liblz4.so.1
>0x00007fbfcdeb04f0  0x00007fbfcdeb5d25  Yes         /usr/lib64/gio/modules/libdconfsettings.so
>0x00007fbfcde60fb0  0x00007fbfcde7c552  No          /usr/lib64/gio/modules/libgvfsdbus.so
>0x00007fbfccbf6ef0  0x00007fbfccc0e85d  No          /usr/lib64/gvfs/libgvfscommon.so
>0x00007fbfcc1c9e30  0x00007fbfcc1ebd62  No          /lib64/libEGL_mesa.so.0
>0x00007fbfcc3328d0  0x00007fbfcc338799  No          /lib64/libgbm.so.1
>0x00007fbfcc195220  0x00007fbfcc1a0d73  No          /lib64/libglapi.so.0
>0x00007fbfccbba0f0  0x00007fbfccbbb359  Yes         /lib64/libxcb-dri2.so.0
>0x00007fbfcc3280d0  0x00007fbfcc32a8fe  Yes         /lib64/libxcb-xfixes.so.0
>0x00007fbfcc315a70  0x00007fbfcc31e74f  Yes         /lib64/libdrm.so.2
>0x00007fbfcc30c150  0x00007fbfcc30d017  Yes         /lib64/libxcb-dri3.so.0
>0x00007fbfcc3060b0  0x00007fbfcc30698a  Yes         /lib64/libxcb-present.so.0
>0x00007fbfcc183210  0x00007fbfcc185506  Yes         /lib64/libxcb-sync.so.1
>0x00007fbfcc301190  0x00007fbfcc301450  Yes         /lib64/libxshmfence.so.1
>0x00007fbfbd1542a0  0x00007fbfbd8b6912  No          /usr/lib64/dri/i965_dri.so
>0x00007fbfcc15e6d0  0x00007fbfcc173843  Yes         /lib64/libdrm_intel.so.1
>0x00007fbfcc14e330  0x00007fbfcc154bfd  Yes         /lib64/libdrm_radeon.so.1
>0x00007fbfcc143610  0x00007fbfcc14734e  Yes         /lib64/libdrm_nouveau.so.2
>0x00007fbfcc138770  0x00007fbfcc13cc81  Yes         /lib64/libpciaccess.so.0
>0x00007fbfcc12c570  0x00007fbfcc131551  No          /lib64/libnss_sss.so.2
>0x00007fbfbdf6b710  0x00007fbfbdfddd77  Yes         /usr/lib64/webkit2gtk-4.0/injected-bundle/libwebkit2gtkinjectedbundle.so
>0x00007fbfcc3509d0  0x00007fbfcc355336  No          /usr/lib64/epiphany/web-extensions/libephywebextension.so
>0x00007fbfbddcadb0  0x00007fbfbdde9e4e  No          /usr/lib64/epiphany/libephymisc.so
>0x00007fbfbdf1bfd0  0x00007fbfbdf2f99b  Yes         /lib64/libjson-glib-1.0.so.0
>0x00007fbfbc592a30  0x00007fbfbc60da52  Yes         /lib64/libdazzle-1.0.so.0
>0x00007fbfbc365970  0x00007fbfbc371357  Yes         /usr/lib64/gio/modules/libgiognutls.so
>0x00007fbf54a79740  0x00007fbf54b85100  Yes         /lib64/libgnutls.so.30
>0x00007fbf5493d090  0x00007fbf549d4fd0  Yes         /lib64/libp11-kit.so.0
>0x00007fbfbc1cf9f0  0x00007fbfbc1ecacc  Yes         /lib64/libnettle.so.6
>0x00007fbfbc30ae20  0x00007fbfbc31a80f  Yes         /lib64/libhogweed.so.4
>0x00007fbfbc154600  0x00007fbfbc1a92e4  Yes         /lib64/libgmp.so.10
>0x00007fbf76550070  0x00007fbf765add17  Yes         /usr/lib64/gstreamer-1.0/libgstplayback.so
>0x00007fbf763a7930  0x00007fbf763e32e0  Yes         /usr/lib64/gstreamer-1.0/libgstcoreelements.so
>0x00007fbf7653aa30  0x00007fbf7653c870  Yes         /usr/lib64/gstreamer-1.0/libgstautodetect.so
>0x00007fbf76531b50  0x00007fbf76533a18  Yes         /usr/lib64/gstreamer-1.0/libgstaudioconvert.so
>0x00007fbf76526b50  0x00007fbf76529838  Yes         /usr/lib64/gstreamer-1.0/libgstaudioresample.so
>0x00007fbf7651a770  0x00007fbf7651e034  Yes         /usr/lib64/gstreamer-1.0/libgstvolume.so
>0x00007fbf763781d0  0x00007fbf7638e1b4  Yes         /usr/lib64/gstreamer-1.0/libgstaudiofx.so
>0x00007fbf7650aa70  0x00007fbf765118b0  Yes         /usr/lib64/gstreamer-1.0/libgstvideofilter.so
>0x00007fbf76359310  0x00007fbf763681b1  Yes         /usr/lib64/gstreamer-1.0/libgstpulseaudio.so
>0x00007fbf761b9d30  0x00007fbf761e6f61  No          /lib64/libpulse.so.0
>0x00007fbf7613ae30  0x00007fbf761805f2  No          /usr/lib64/pulseaudio/libpulsecommon-12.2.so
>0x00007fbf76311170  0x00007fbf7631edba  Yes         /lib64/libICE.so.6
>0x00007fbf763024b0  0x00007fbf76306359  Yes         /lib64/libSM.so.6
>0x00007fbf7611a3b0  0x00007fbf7611cdcc  Yes         /lib64/libXtst.so.6
>0x00007fbf75f930f0  0x00007fbf75fdc723  Yes         /lib64/libsndfile.so.1
>0x00007fbf76112470  0x00007fbf76114b1c  Yes         /lib64/libasyncns.so.0
>0x00007fbf765023f0  0x00007fbf76503e6a  Yes         /lib64/libcap.so.2
>0x00007fbf76103350  0x00007fbf7610b769  Yes         /lib64/libgsm.so.1
>0x00007fbf75f3a1b0  0x00007fbf75f7e763  No          /lib64/libFLAC.so.8
>0x00007fbf75f29490  0x00007fbf75f2b859  Yes         /lib64/libogg.so.0
>0x00007fbf75dd4bd0  0x00007fbf75debc5d  Yes         /lib64/libvorbis.so.0
>0x00007fbf75d39130  0x00007fbf75d3b726  Yes         /lib64/libvorbisenc.so.2
>0x00007fbfbc1010d0  0x00007fbfbc101248  Yes         /usr/lib64/gstreamer-1.0/libgstapp.so
>0x00007fbf75bb6250  0x00007fbf75be8c6a  Yes         /usr/lib64/gstreamer-1.0/libgstmatroska.so
>0x00007fbf763315f0  0x00007fbf76339616  Yes         /lib64/libgstriff-1.0.so.0
>0x00007fbf75f0c550  0x00007fbf75f0d665  Yes         /usr/lib64/gstreamer-1.0/libgstopusparse.so
>0x00007fbf75b237b0  0x00007fbf75b6bad2  Yes         /lib64/libopus.so.0
>0x00007fbf75d15610  0x00007fbf75d1d018  Yes         /usr/lib64/gstreamer-1.0/libgstvpx.so
>0x00007fbefc934350  0x00007fbefcc045b3  Yes         /lib64/libvpx.so.6
>0x00007fbf75b9d210  0x00007fbf75ba33b4  Yes         /usr/lib64/gstreamer-1.0/libgstopus.so
>0x00007fbf75f04910  0x00007fbf75f05de8  Yes         /usr/lib64/gstreamer-1.0/libgstvideoconvert.so
>0x00007fbf75b17bb0  0x00007fbf75b1aa28  Yes         /usr/lib64/gstreamer-1.0/libgstvideoscale.so
>0x00007fbf759c1530  0x00007fbf759f4bb4  Yes         /usr/lib64/gstreamer-1.0/libgstdeinterlace.so
>(*): Shared library is missing debugging information.
>$1 = 0x0
>$2 = 0x0
>rax            0x0                 0
>rbx            0x11                17
>rcx            0x0                 0
>rdx            0x0                 0
>rsi            0x7fbfcc2e8000      140461741080576
>rdi            0x7fbfcc206280      140461740155520
>rbp            0x7fbfcc206280      0x7fbfcc206280
>rsp            0x7fffb9031a48      0x7fffb9031a48
>r8             0x0                 0
>r9             0x0                 0
>r10            0xea000             958464
>r11            0x0                 0
>r12            0x7fbf404f7240      140459394429504
>r13            0x14                20
>r14            0x14                20
>r15            0x7fbfcc2e3a20      140461741062688
>rip            0x7fbfe2ccc3c8      0x7fbfe2ccc3c8 <WebKit::WebFullScreenManager::requestExitFullScreen()+8>
>eflags         0x10246             [ PF ZF IF RF ]
>cs             0x33                51
>ss             0x2b                43
>ds             0x0                 0
>es             0x0                 0
>fs             0x0                 0
>gs             0x0                 0
>Dump of assembler code for function WebKit::WebFullScreenManager::requestExitFullScreen():
>   0x00007fbfe2ccc3c0 <+0>:	endbr64 
>   0x00007fbfe2ccc3c4 <+4>:	mov    0x40(%rdi),%rax
>=> 0x00007fbfe2ccc3c8 <+8>:	mov    0x20(%rax),%rax
>   0x00007fbfe2ccc3cc <+12>:	mov    0x8(%rax),%rdi
>   0x00007fbfe2ccc3d0 <+16>:	jmpq   0x7fbfe385c820 <WebCore::Document::webkitCancelFullScreen()>
>End of assembler dump.
>== EXPLOITABLE ==

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Attachments on bug 189847: 368682