[Webkit-unassigned] [Bug 229462] New: [ Catalina EWS ] media/track/track-disabled-addcue.html is flaky crashing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=229462

            Bug ID: 229462
           Summary: [ Catalina EWS ]
                    media/track/track-disabled-addcue.html is flaky
                    crashing
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Mac (Intel)
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ayumi_kojima at apple.com

media/track/track-disabled-addcue.html

Is flaky crashing on macOS-Catalina-Debug-WK1-Tests-EWS

The flaky crash is not showing up on the open source: https://results.webkit.org/?suite=layout-tests&test=media/track/track-disabled-addcue.html

It seems to have started being flaky at this build https://ews-build.webkit.org/#/builders/56/builds/10449

Crash log: 

No crash log found for DumpRenderTree:5432.

stdout:

stderr:
ASSERTION FAILED: m_wrapper
./bindings/js/JSEventListener.h(128) : JSC::JSObject *WebCore::JSEventListener::ensureJSFunction(WebCore::ScriptExecutionContext &) const
1   0x10853d2f9 WTFCrash
2   0x128abea1b WTFCrashWithInfo(int, char const*, char const*, int)
3   0x12b6ca62f WebCore::JSEventListener::ensureJSFunction(WebCore::ScriptExecutionContext&) const
4   0x12b6c9994 WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext&, WebCore::Event&)
5   0x12beb0357 WebCore::EventTarget::innerInvokeEventListeners(WebCore::Event&, WTF::Vector<WTF::RefPtr<WebCore::RegisteredEventListener, WTF::RawPtrTraits<WebCore::RegisteredEventListener>, WTF::DefaultRefDerefTraits<WebCore::RegisteredEventListener> >, 1ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>, WebCore::EventTarget::EventInvokePhase)
6   0x12beafdb4 WebCore::EventTarget::fireEventListeners(WebCore::Event&, WebCore::EventTarget::EventInvokePhase)
7   0x12be82d5a WebCore::EventContext::handleLocalEvents(WebCore::Event&, WebCore::EventTarget::EventInvokePhase) const
8   0x12be83c25 WebCore::dispatchEventInDOM(WebCore::Event&, WebCore::EventPath const&)
9   0x12be834c2 WebCore::EventDispatcher::dispatchEvent(WebCore::Node&, WebCore::Event&)
10  0x12bf37b3d WebCore::Node::dispatchEvent(WebCore::Event&)
11  0x12c43e217 WebCore::HTMLTrackElement::didCompleteLoad(WebCore::HTMLTrackElement::LoadStatus)
12  0x12c6acc45 WebCore::LoadableTextTrack::loadTimerFired()
13  0x12c6c5ac7 decltype(*(std::__1::forward<WebCore::LoadableTextTrack*&>(fp0)).*fp()) std::__1::__invoke<void (WebCore::LoadableTextTrack::*&)(), WebCore::LoadableTextTrack*&, void>(void (WebCore::LoadableTextTrack::*&)(), WebCore::LoadableTextTrack*&)
14  0x12c6c5a40 std::__1::__bind_return<void (WebCore::LoadableTextTrack::*)(), std::__1::tuple<WebCore::LoadableTextTrack*>, std::__1::tuple<>, __is_valid_bind_return<void (WebCore::LoadableTextTrack::*)(), std::__1::tuple<WebCore::LoadableTextTrack*>, std::__1::tuple<> >::value>::type std::__1::__apply_functor<void (WebCore::LoadableTextTrack::*)(), std::__1::tuple<WebCore::LoadableTextTrack*>, 0ul, std::__1::tuple<> >(void (WebCore::LoadableTextTrack::*&)(), std::__1::tuple<WebCore::LoadableTextTrack*>&, std::__1::__tuple_indices<0ul>, std::__1::tuple<>&&)
15  0x12c6c59f9 std::__1::__bind_return<void (WebCore::LoadableTextTrack::*)(), std::__1::tuple<WebCore::LoadableTextTrack*>, std::__1::tuple<>, __is_valid_bind_return<void (WebCore::LoadableTextTrack::*)(), std::__1::tuple<WebCore::LoadableTextTrack*>, std::__1::tuple<> >::value>::type std::__1::__bind<void (WebCore::LoadableTextTrack::*&)(), WebCore::LoadableTextTrack*>::operator()<>()
16  0x12c6c597e WTF::Detail::CallableWrapper<std::__1::__bind<void (WebCore::LoadableTextTrack::*&)(), WebCore::LoadableTextTrack*>, void>::call()
17  0x128ad4312 WTF::Function<void ()>::operator()() const
18  0x128b1462e WebCore::Timer::fired()
19  0x12cfdcee4 WebCore::ThreadTimers::sharedTimerFiredInternal()
20  0x12cfea031 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const
21  0x12cfe9fbe WTF::Detail::CallableWrapper<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, void>::call()
22  0x128ad4312 WTF::Function<void ()>::operator()() const
23  0x12cf9489b WebCore::MainThreadSharedTimer::fired()
24  0x12d063c76 WebCore::timerFired(__CFRunLoopTimer*, void*)
25  0x7fff378a6468 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
26  0x7fff378a5fce __CFRunLoopDoTimer
27  0x7fff378a5ab9 __CFRunLoopDoTimers
28  0x7fff3788a70d __CFRunLoopRun
29  0x7fff37889953 CFRunLoopRunSpecific
30  0x100cdc1d8 runTest(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)
31  0x100cdb47a runTestingServerLoop()

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