Bug 239399

Summary: ASSERTION FAILED: !m_isInitializingSendSource crashes on the bots
Product: WebKit Reporter: Chris Dumez <cdumez>
Component: WebKit2Assignee: Kimmo Kinnunen <kkinnunen>
Status: RESOLVED FIXED    
Severity: Normal CC: ggaren, Hironori.Fujii, kkinnunen, simon.fraser, webkit-bug-importer, zan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
See Also: https://bugs.webkit.org/show_bug.cgi?id=239494
https://bugs.webkit.org/show_bug.cgi?id=239495
Bug Depends on:    
Bug Blocks: 237674    
Attachments:
Description Flags
Patch
none
Patch none

Description Chris Dumez 2022-04-15 12:45:00 PDT 
ASSERTION FAILED: !m_isInitializingSendSource
/Volumes/Data/worker/macOS-AppleSilicon-Big-Sur-Debug-Build-EWS/build/Source/WebKit/Platform/IPC/cocoa/ConnectionCocoa.mm(255) : bool IPC::Connection::sendMessage(std::unique_ptr<MachMessage>)
1   0x1417c40b8 WTFCrash
2   0x1047692f0 std::__1::__optional_copy_assign_base<int, true>::__optional_copy_assign_base()
3   0x105238a18 IPC::Connection::sendMessage(std::__1::unique_ptr<IPC::MachMessage, std::__1::default_delete<IPC::MachMessage> >)
4   0x105239750 IPC::Connection::sendOutgoingMessage(WTF::UniqueRef<IPC::Encoder>&&)
5   0x105d1f264 IPC::Connection::sendOutgoingMessages()
6   0x105d3c2ec IPC::Connection::sendMessage(WTF::UniqueRef<IPC::Encoder>&&, WTF::OptionSet<IPC::SendOption>, std::__1::optional<WTF::Thread::QOS>)::$_2::operator()()
7   0x105d3c238 WTF::Detail::CallableWrapper<IPC::Connection::sendMessage(WTF::UniqueRef<IPC::Encoder>&&, WTF::OptionSet<IPC::SendOption>, std::__1::optional<WTF::Thread::QOS>)::$_2, void>::call()
8   0x1417ef884 WTF::Function<void ()>::operator()() const
9   0x1419323cc WTF::(anonymous namespace)::DispatchWorkItem::operator()()
10  0x1419303bc void WTF::dispatchWorkItem<WTF::(anonymous namespace)::DispatchWorkItem>(void*)
11  0x19f0b3ec0 _dispatch_client_callout
12  0x19f0bb6a8 _dispatch_lane_serial_drain
13  0x19f0bc2a4 _dispatch_lane_invoke
14  0x19f0c6b74 _dispatch_workloop_worker_thread
15  0x19f25f89c _pthread_wqthread
16  0x19f25e5d4 start_wqthread

frequently seen on the EWS bots, e.g. https://ews-build.s3-us-west-2.amazonaws.com/macOS-AppleSilicon-Big-Sur-Debug-WK2-Tests-EWS/457653-28957/results.html
Comment 1 Radar WebKit Bug Importer 2022-04-15 12:58:21 PDT 
<rdar://problem/91824533>
Comment 2 Simon Fraser (smfr) 2022-04-15 19:03:13 PDT 
Also:

ASSERTION FAILED: !m_pendingOutgoingMachMessage && !m_isInitializingSendSource
/Volumes/Data/worker/macOS-AppleSilicon-Big-Sur-Debug-Build-EWS/build/Source/WebKit/Platform/IPC/cocoa/ConnectionCocoa.mm(289) : bool IPC::Connection::sendOutgoingMessage(UniqueRef<IPC::Encoder> &&)
1   0x13da707f8 WTFCrash
2   0x1009f86a0 std::__1::__optional_copy_assign_base<int, true>::__optional_copy_assign_base()
3   0x1014c751c IPC::Connection::sendOutgoingMessage(WTF::UniqueRef<IPC::Encoder>&&)
4   0x101fad5a8 IPC::Connection::sendOutgoingMessages()
5   0x101fca630 IPC::Connection::sendMessage(WTF::UniqueRef<IPC::Encoder>&&, WTF::OptionSet<IPC::SendOption>, std::__1::optional<WTF::Thread::QOS>)::$_2::operator()()
6   0x101fca57c WTF::Detail::CallableWrapper<IPC::Connection::sendMessage(WTF::UniqueRef<IPC::Encoder>&&, WTF::OptionSet<IPC::SendOption>, std::__1::optional<WTF::Thread::QOS>)::$_2, void>::call()
7   0x13da9c1c8 WTF::Function<void ()>::operator()() const
8   0x13dbde9d8 WTF::(anonymous namespace)::DispatchWorkItem::operator()()
9   0x13dbdc9c8 void WTF::dispatchWorkItem<WTF::(anonymous namespace)::DispatchWorkItem>(void*)
10  0x19928bec0 _dispatch_client_callout
11  0x1992936a8 _dispatch_lane_serial_drain
12  0x1992942a4 _dispatch_lane_invoke
13  0x19929eb74 _dispatch_workloop_worker_thread
14  0x19943789c _pthread_wqthread
15  0x1994365d4 start_wqthread
LEAK: 1 WebPageProxy
Comment 4 Kimmo Kinnunen 2022-04-19 07:05:51 PDT 
Created attachment 457887 [details]
Patch
Comment 5 Kimmo Kinnunen 2022-04-19 07:10:25 PDT 
Created attachment 457888 [details]
Patch
Comment 6 Kimmo Kinnunen 2022-04-19 07:12:38 PDT 
*** Bug 238663 has been marked as a duplicate of this bug. ***
Comment 7 Kimmo Kinnunen 2022-04-19 09:17:12 PDT 
Thanks for filing, sorry for the trouble.
Comment 8 EWS 2022-04-19 13:34:17 PDT 
Committed r293035 (249774@main): <https://commits.webkit.org/249774@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 457888 [details].
Comment 9 Kimmo Kinnunen 2022-04-20 12:03:48 PDT 
*** Bug 239496 has been marked as a duplicate of this bug. ***
Comment 10 Fujii Hironori 2022-04-20 23:44:59 PDT 
*** Bug 239488 has been marked as a duplicate of this bug. ***