[ Catalina Debug wk1 EWS ] media/modern-media-controls/media-controls/media-controls-placard-compressed-metrics.html is a flaky crash

• Component: Media
• Status: NEW ---

[Eric Hutchison]

Created attachment 439298 [details]
Crash Log

media/modern-media-controls/media-controls/media-controls-placard-compressed-metrics.html

is a flaky crash on Catalina Debug wk1 EWS.

History: https://results.webkit.org/?suite=layout-tests&test=media%2Fmodern-media-controls%2Fmedia-controls%2Fmedia-controls-placard-compressed-metrics.html

Results: https://ews-build.s3-us-west-2.amazonaws.com/macOS-Catalina-Debug-WK1-Tests-EWS/r439277-16055-rerun/results.html

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.JavaScriptCore      	0x000000010d0d043e WTFCrash + 14 (Assertions.cpp:321)
1   com.apple.WebCore             	0x000000012e784ecb WTFCrashWithInfo(int, char const*, char const*, int) + 27
2   com.apple.WebCore             	0x000000013120808f WebCore::JSEventListener::ensureJSFunction(WebCore::ScriptExecutionContext&) const + 639
3   com.apple.WebCore             	0x00000001312073d4 WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext&, WebCore::Event&) + 212
4   com.apple.WebCore             	0x0000000131a46987 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) + 1063
5   com.apple.WebCore             	0x0000000131a463e4 WebCore::EventTarget::fireEventListeners(WebCore::Event&, WebCore::EventTarget::EventInvokePhase) + 356
6   com.apple.WebCore             	0x0000000131a46235 WebCore::EventTarget::dispatchEvent(WebCore::Event&) + 357
7   com.apple.WebCore             	0x000000013226e71d WebCore::TrackListBase::scheduleChangeEvent()::$_0::operator()() const + 109
8   com.apple.WebCore             	0x000000013226e65e WTF::Detail::CallableWrapper<WebCore::TrackListBase::scheduleChangeEvent()::$_0, void>::call() + 30
9   com.apple.WebCore             	0x000000012e79d8e2 WTF::Function<void ()>::operator()() const + 130 (Function.h:82)
10  com.apple.WebCore             	0x000000013226dc8e void WebCore::ActiveDOMObject::queueTaskKeepingObjectAlive<WebCore::TrackListBase>(WebCore::TrackListBase&, WebCore::TaskSource, WTF::Function<void ()>&&)::'lambda'()::operator()() const + 30
11  com.apple.WebCore             	0x000000013226d7be WTF::Detail::CallableWrapper<void WebCore::ActiveDOMObject::queueTaskKeepingObjectAlive<WebCore::TrackListBase>(WebCore::TrackListBase&, WebCore::TaskSource, WTF::Function<void ()>&&)::'lambda'(), void>::call() + 30
12  com.apple.WebCore             	0x000000012e79d8e2 WTF::Function<void ()>::operator()() const + 130 (Function.h:82)
13  com.apple.WebCore             	0x0000000131a4a64e WebCore::EventLoopFunctionDispatchTask::execute() + 30
14  com.apple.WebCore             	0x0000000131a3fe05 WebCore::EventLoop::run() + 373
15  com.apple.WebCore             	0x0000000131bdb4fc WebCore::WindowEventLoop::didReachTimeToRun() + 44
16  com.apple.WebCore             	0x0000000131bde967 decltype(*(std::__1::forward<WebCore::WindowEventLoop*&>(fp0)).*fp()) std::__1::__invoke<void (WebCore::WindowEventLoop::*&)(), WebCore::WindowEventLoop*&, void>(void (WebCore::WindowEventLoop::*&)(), WebCore::WindowEventLoop*&) + 119
17  com.apple.WebCore             	0x0000000131bde8e0 std::__1::__bind_return<void (WebCore::WindowEventLoop::*)(), std::__1::tuple<WebCore::WindowEventLoop*>, std::__1::tuple<>, __is_valid_bind_return<void (WebCore::WindowEventLoop::*)(), std::__1::tuple<WebCore::WindowEventLoop*>, std::__1::tuple<> >::value>::type std::__1::__apply_functor<void (WebCore::WindowEventLoop::*)(), std::__1::tuple<WebCore::WindowEventLoop*>, 0ul, std::__1::tuple<> >(void (WebCore::WindowEventLoop::*&)(), std::__1::tuple<WebCore::WindowEventLoop*>&, std::__1::__tuple_indices<0ul>, std::__1::tuple<>&&) + 64
18  com.apple.WebCore             	0x0000000131bde899 std::__1::__bind_return<void (WebCore::WindowEventLoop::*)(), std::__1::tuple<WebCore::WindowEventLoop*>, std::__1::tuple<>, __is_valid_bind_return<void (WebCore::WindowEventLoop::*)(), std::__1::tuple<WebCore::WindowEventLoop*>, std::__1::tuple<> >::value>::type std::__1::__bind<void (WebCore::WindowEventLoop::*&)(), WebCore::WindowEventLoop*>::operator()<>() + 41
19  com.apple.WebCore             	0x0000000131bde81e WTF::Detail::CallableWrapper<std::__1::__bind<void (WebCore::WindowEventLoop::*&)(), WebCore::WindowEventLoop*>, void>::call() + 30
20  com.apple.WebCore             	0x000000012e79d8e2 WTF::Function<void ()>::operator()() const + 130 (Function.h:82)
21  com.apple.WebCore             	0x000000012e825c4e WebCore::Timer::fired() + 30
22  com.apple.WebCore             	0x0000000132ba2264 WebCore::ThreadTimers::sharedTimerFiredInternal() + 644
23  com.apple.WebCore             	0x0000000132bac2b1 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const + 33
24  com.apple.WebCore             	0x0000000132bac23e WTF::Detail::CallableWrapper<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, void>::call() + 30
25  com.apple.WebCore             	0x000000012e79d8e2 WTF::Function<void ()>::operator()() const + 130 (Function.h:82)
26  com.apple.WebCore             	0x0000000132b48a6b WebCore::MainThreadSharedTimer::fired() + 139
27  com.apple.WebCore             	0x0000000132c30626 WebCore::timerFired(__CFRunLoopTimer*, void*) + 38
28  com.apple.CoreFoundation      	0x00007fff30084468 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
29  com.apple.CoreFoundation      	0x00007fff30083fce __CFRunLoopDoTimer + 872
30  com.apple.CoreFoundation      	0x00007fff30083ab9 __CFRunLoopDoTimers + 322
31  com.apple.CoreFoundation      	0x00007fff3006870d __CFRunLoopRun + 1885
32  com.apple.CoreFoundation      	0x00007fff30067953 CFRunLoopRunSpecific + 466
33  DumpRenderTree                	0x0000000106acf444 runTest(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) + 3348 (DumpRenderTree.mm:1963)
34  DumpRenderTree                	0x0000000106ace68a runTestingServerLoop() + 218 (DumpRenderTree.mm:1077)
35  DumpRenderTree                	0x0000000106acdec8 dumpRenderTree(int, char const**) + 616 (DumpRenderTree.mm:1191)
36  DumpRenderTree                	0x0000000106acfff2 DumpRenderTreeMain(int, char const**) + 114 (DumpRenderTree.mm:1308)
37  DumpRenderTree                	0x0000000106bbc9c2 main + 34 (DumpRenderTreeMain.mm:34)
38  libdyld.dylib                 	0x00007fff6a18bcc9 start + 1

[Radar WebKit Bug Importer]

<rdar://problem/83552669>

[Eric Hutchison]

Updated test expectations at http://trac.webkit.org/changeset/283091/webkit

[Alexey Proskuryakov]

Looks like a JS garbage collection bug in media code.