Bug 278318 – [macOS Debug] ASSERTION FAILED: m_wrapper on media/video-playsinline.html, also flaky failure in Release

• Component: Media
• Status: NEW

[David Kilzer (:ddkilzer)]

[mac wk2] media/video-playsinline.html is a flaky failure.

Test history:  <https://results.webkit.org/?suite=layout-tests&test=media/video-playsinline.html>

Flaky failure is seen most often on Mac WK2 Release builds:

--- /Volumes/Data/worker/Apple-Ventura-Release-WK2-Tests/build/layout-test-results/media/video-timeupdate-during-playback-expected.txt
+++ /Volumes/Data/worker/Apple-Ventura-Release-WK2-Tests/build/layout-test-results/media/video-timeupdate-during-playback-actual.txt
@@ -15,5 +15,6 @@
 RUN(video.pause())
 EVENT(pause)
 
+'timeupdate' events posted after pausing FAIL
 END OF TEST
 

But the test also crashes flakily on Mac WK2 Debug as seen on this EWS run:

PR:  <https://github.com/WebKit/WebKit/pull/32362>

Test run:  <https://ews-build.webkit.org/#/builders/62/builds/11945>

Test results #1:  <https://ews-build.s3-us-west-2.amazonaws.com/macOS-Sonoma-Debug-WK2-Tests-EWS/6c84dd0a-11945/results.html>
Test results #2:  <https://ews-build.s3-us-west-2.amazonaws.com/macOS-Sonoma-Debug-WK2-Tests-EWS/6c84dd0a-11945-rerun/results.html>

ASSERTION FAILED: m_wrapper
/Volumes/Data/worker/macOS-Sonoma-Debug-Build-EWS/build/Source/WebCore/bindings/js/JSEventListener.h(164) : JSC::JSObject *WebCore::JSEventListener::ensureJSFunction(ScriptExecutionContext &) const
1   0x32f389cbc WebCore::JSEventListener::ensureJSFunction(WebCore::ScriptExecutionContext&) const
2   0x32f3fb510 WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext&, WebCore::Event&)
3   0x32ff80870 WebCore::EventTarget::innerInvokeEventListeners(WebCore::Event&, WTF::Vector<WTF::RefPtr<WebCore::RegisteredEventListener, WTF::RawPtrTraits<WebCore::RegisteredEventListener>, WTF::DefaultRefDerefTraits<WebCore::RegisteredEventListener>>, 1ul, WTF::CrashOnOverflow, 2ul, WTF::FastMalloc>, WebCore::EventTarget::EventInvokePhase)
4   0x32ff80240 WebCore::EventTarget::fireEventListeners(WebCore::Event&, WebCore::EventTarget::EventInvokePhase)
5   0x32ff6b5e4 WebCore::EventContext::handleLocalEvents(WebCore::Event&, WebCore::EventTarget::EventInvokePhase) const
6   0x32ff6c8f8 WebCore::dispatchEventInDOM(WebCore::Event&, WebCore::EventPath const&)
7   0x32ff6c0e8 WebCore::EventDispatcher::dispatchEvent(WebCore::Node&, WebCore::Event&)
8   0x330010f08 WebCore::Node::dispatchEvent(WebCore::Event&)
9   0x3304583d8 WebCore::HTMLMediaElement::dispatchEvent(WebCore::Event&)
10  0x32fd47e30 WebCore::ActiveDOMObject::queueCancellableTaskToDispatchEventInternal(WebCore::EventTarget&, WebCore::TaskSource, WTF::TaskCancellationGroup&, WTF::Ref<WebCore::Event, WTF::RawPtrTraits<WebCore::Event>, WTF::DefaultRefDerefTraits<WebCore::Event>>&&)::$_6::operator()() const
11  0x32fd47d54 WTF::Detail::CallableWrapper<WebCore::ActiveDOMObject::queueCancellableTaskToDispatchEventInternal(WebCore::EventTarget&, WebCore::TaskSource, WTF::TaskCancellationGroup&, WTF::Ref<WebCore::Event, WTF::RawPtrTraits<WebCore::Event>, WTF::DefaultRefDerefTraits<WebCore::Event>>&&)::$_6, void>::call()
12  0x32baf63f8 WTF::Function<void ()>::operator()() const
13  0x32f327a88 WTF::CancellableTask::operator()()
14  0x32f3278d0 WTF::Detail::CallableWrapper<WTF::CancellableTask, void>::call()
15  0x32baf63f8 WTF::Function<void ()>::operator()() const
16  0x32fd4384c WebCore::ActiveDOMObjectEventDispatchTask::execute()
17  0x32ff78a30 WebCore::EventLoop::run(std::__1::optional<WTF::ApproximateTime>)
18  0x33014e7b4 WebCore::WindowEventLoop::didReachTimeToRun()
19  0x330152430 decltype(*std::declval<WebCore::WindowEventLoop*&>().*std::declval<void (WebCore::WindowEventLoop::*&)()>()()) std::__1::__invoke[abi:sn170006]<void (WebCore::WindowEventLoop::*&)(), WebCore::WindowEventLoop*&, void>(void (WebCore::WindowEventLoop::*&)(), WebCore::WindowEventLoop*&)
20  0x3301523b0 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[abi:sn170006]<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<>&&)
21  0x330152368 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()[abi:sn170006]<>()
22  0x33015230c WTF::Detail::CallableWrapper<std::__1::__bind<void (WebCore::WindowEventLoop::*&)(), WebCore::WindowEventLoop*>, void>::call()
23  0x32baf63f8 WTF::Function<void ()>::operator()() const
24  0x32bc3d354 WebCore::Timer::fired()
25  0x331294fa8 WebCore::ThreadTimers::sharedTimerFiredInternal()
26  0x33129f574 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const
27  0x33129f520 WTF::Detail::CallableWrapper<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, void>::call()
28  0x32baf63f8 WTF::Function<void ()>::operator()() const
29  0x33123c0f4 WebCore::MainThreadSharedTimer::fired()
30  0x3313450ac WebCore::timerFired(__CFRunLoopTimer*, void*)
31  0x197d0a5b8 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
com.apple.WebKit.WebContent.Development terminated (pid 8502) for reason: crash

[Radar WebKit Bug Importer]

<rdar://problem/134261773>

[David Kilzer (:ddkilzer)]

Test expectations as of 281902@main (Tue, Aug 06):

$ grep -r media/video-playsinline.html LayoutTests/TestExpectations LayoutTests/platform
LayoutTests/platform/mac-site-isolation/TestExpectations:media/video-playsinline.html [ Skip ]
LayoutTests/platform/glib/TestExpectations:webkit.org/b/261024 media/video-playsinline.html [ Failure Pass ]
LayoutTests/platform/ios/TestExpectations:media/video-playsinline.html

[EWS]

Test gardening commit 282525@main (50d318d04432): <https://commits.webkit.org/282525@main>

Reviewed commits have been landed. Closing PR #32489 and removing active labels.