Bug 209616

Summary: [StressGC] ASSERTION FAILED: m_wrapper under WebCore::HTMLMediaElement::dispatchEvent
Product: WebKit Reporter: Chris Dumez <cdumez>
Component: BindingsAssignee: Chris Dumez <cdumez>
Status: RESOLVED FIXED    
Severity: Normal CC: calvaris, cdumez, eric.carlson, esprehn+autocc, ews-watchlist, ggaren, glenn, gyuyoung.kim, jer.noble, philipj, rniwa, saam, sergio, webkit-bug-importer, youennf, ysuzuki
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch
none
Patch none

Description Chris Dumez 2020-03-26 13:16:15 PDT 
[StressGC] ASSERTION FAILED: m_wrapper under WebCore::HTMLMediaElement::dispatchEvent:
ASSERTION FAILED: m_wrapper
./bindings/js/JSEventListener.h(123) : JSC::JSObject *WebCore::JSEventListener::jsFunction(WebCore::ScriptExecutionContext &) const
1   0x106bf70b9 WTFCrash
2   0x11d80388b WTFCrashWithInfo(int, char const*, char const*, int)
3   0x11f9be9f8 WebCore::JSEventListener::jsFunction(WebCore::ScriptExecutionContext&) const
4   0x11f9bdd1b WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext&, WebCore::Event&)
5   0x12000b87c WebCore::EventTarget::innerInvokeEventListeners(WebCore::Event&, WTF::Vector<WTF::RefPtr<WebCore::RegisteredEventListener, WTF::DumbPtrTraits<WebCore::RegisteredEventListener> >, 1ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>, WebCore::EventTarget::EventInvokePhase)
6   0x120007b12 WebCore::EventTarget::fireEventListeners(WebCore::Event&, WebCore::EventTarget::EventInvokePhase)
7   0x1200834ba WebCore::Node::handleLocalEvents(WebCore::Event&, WebCore::EventTarget::EventInvokePhase)
8   0x11fff6180 WebCore::EventContext::handleLocalEvents(WebCore::Event&, WebCore::EventTarget::EventInvokePhase) const
9   0x11fff6b97 WebCore::dispatchEventInDOM(WebCore::Event&, WebCore::EventPath const&)
10  0x11fff6795 WebCore::EventDispatcher::dispatchEvent(WebCore::Node&, WebCore::Event&)
11  0x12008350d WebCore::Node::dispatchEvent(WebCore::Event&)
12  0x1203eeb31 WebCore::HTMLMediaElement::dispatchEvent(WebCore::Event&)
13  0x120426b95 WebCore::HTMLMediaElement::setIsPlayingToWirelessTarget(bool)::$_35::operator()() const
14  0x120426999 WTF::Detail::CallableWrapper<WebCore::HTMLMediaElement::setIsPlayingToWirelessTarget(bool)::$_35, void>::call()
15  0x11d8110fa WTF::Function<void ()>::operator()() const
16  0x11dad3a20 WebCore::GenericTaskQueue<WebCore::Timer>::enqueueTask(WTF::Function<void ()>&&)::'lambda'()::operator()() const
17  0x11dad3869 WTF::Detail::CallableWrapper<WebCore::GenericTaskQueue<WebCore::Timer>::enqueueTask(WTF::Function<void ()>&&)::'lambda'(), void>::call()
18  0x11d8110fa WTF::Function<void ()>::operator()() const
19  0x120dc071e WebCore::TaskDispatcher<WebCore::Timer>::dispatchOneTask()
20  0x120dc03c5 WebCore::TaskDispatcher<WebCore::Timer>::sharedTimerFired()
21  0x120dc4c61 WebCore::TaskDispatcher<WebCore::Timer>::sharedTimer()::$_1::operator()() const
22  0x120dc4c29 WTF::Detail::CallableWrapper<WebCore::TaskDispatcher<WebCore::Timer>::sharedTimer()::$_1, void>::call()
23  0x11d8110fa WTF::Function<void ()>::operator()() const
24  0x11d8c9ee9 WebCore::Timer::fired()
25  0x120e082ea WebCore::ThreadTimers::sharedTimerFiredInternal()
26  0x120e0fec1 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const
27  0x120e0fe79 WTF::Detail::CallableWrapper<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, void>::call()
28  0x11d8110fa WTF::Function<void ()>::operator()() const
29  0x120dd5ff7 WebCore::MainThreadSharedTimer::fired()
30  0x120e6a486 WebCore::timerFired(__CFRunLoopTimer*, void*)
31  0x7fff4f3805d5 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
Comment 1 Chris Dumez 2020-03-26 13:16:32 PDT 
<rdar://problem/60541294>
Comment 2 Chris Dumez 2020-03-26 13:20:25 PDT 
Created attachment 394650 [details]
Patch
Comment 3 Chris Dumez 2020-03-26 13:25:28 PDT 
Created attachment 394653 [details]
Patch
Comment 4 EWS 2020-03-26 14:36:41 PDT 
Committed r259081: <https://trac.webkit.org/changeset/259081>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 394653 [details].
Comment 5 Ryosuke Niwa 2020-03-26 14:45:37 PDT 
Could you also take a look at https://bugs.webkit.org/show_bug.cgi?id=208798?