Bug 306379 – [macOS Debug]: ASSERTION FAILED: m_wrapper /Volumes/Data/worker/macOS-Tahoe-Debug-Build-EWS/build/Source/WebCore/bindings/js/JSEventListener.h(168) : JSC::JSObject *WebCore::JSEventListener::ensureJSFunction(ScriptExecutionContext &) const

• Component: WebRTC
• Status: NEW

[Marta Darbinyan]

The following test is a flaky crash on EWS bots.
webrtc/addTransceiver-then-addTrack.html 

The first crash occurred on https://ews-build.webkit.org/#/builders/161/builds/10071. On post-commit bots the crash is not detected. 


ASSERTION FAILED: m_wrapper
/Volumes/Data/worker/macOS-Tahoe-Debug-Build-EWS/build/Source/WebCore/bindings/js/JSEventListener.h(168) : JSC::JSObject *WebCore::JSEventListener::ensureJSFunction(ScriptExecutionContext &) const
1   0x304a07e50 WebCore::JSEventListener::ensureJSFunction(WebCore::ScriptExecutionContext&) const
2   0x304a07308 WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext&, WebCore::Event&)
3   0x3059c44f4 WebCore::EventTarget::innerInvokeEventListeners(WebCore::Event&, WTF::Vector<WTF::Ref<WebCore::RegisteredEventListener, WTF::RawPtrTraits<WebCore::RegisteredEventListener>, WTF::DefaultRefDerefTraits<WebCore::RegisteredEventListener>>, 1ul, WTF::CrashOnOverflow, 2ul, WTF::FastMalloc>, WebCore::EventTarget::EventInvokePhase)
4   0x3059b7000 WebCore::EventTarget::fireEventListeners(WebCore::Event&, WebCore::EventTarget::EventInvokePhase)
5   0x3059c3ef4 WebCore::EventTarget::dispatchEvent(WebCore::Event&)
6   0x3040700e4 WebCore::RTCPeerConnection::dispatchEvent(WebCore::Event&)
7   0x3040964b0 _ZZN7WebCore17RTCPeerConnection13scheduleEventEON3WTF3RefINS_5EventENS1_12RawPtrTraitsIS3_EENS1_21DefaultRefDerefTraitsIS3_EEEEEN3$_0clIS0_EEDaRT_
8   0x304096474 void WebCore::ActiveDOMObject::queueTaskKeepingObjectAlive<WebCore::RTCPeerConnection, WebCore::RTCPeerConnection::scheduleEvent(WTF::Ref<WebCore::Event, WTF::RawPtrTraits<WebCore::Event>, WTF::DefaultRefDerefTraits<WebCore::Event>>&&)::$_0>(WebCore::RTCPeerConnection&, WebCore::TaskSource, WebCore::RTCPeerConnection::scheduleEvent(WTF::Ref<WebCore::Event, WTF::RawPtrTraits<WebCore::Event>, WTF::DefaultRefDerefTraits<WebCore::Event>>&&)::$_0&&)::'lambda'()::operator()()
9   0x304096398 WTF::Detail::CallableWrapper<void WebCore::ActiveDOMObject::queueTaskKeepingObjectAlive<WebCore::RTCPeerConnection, WebCore::RTCPeerConnection::scheduleEvent(WTF::Ref<WebCore::Event, WTF::RawPtrTraits<WebCore::Event>, WTF::DefaultRefDerefTraits<WebCore::Event>>&&)::$_0>(WebCore::RTCPeerConnection&, WebCore::TaskSource, WebCore::RTCPeerConnection::scheduleEvent(WTF::Ref<WebCore::Event, WTF::RawPtrTraits<WebCore::Event>, WTF::DefaultRefDerefTraits<WebCore::Event>>&&)::$_0&&)::'lambda'(), void>::call()
10  0x30003732c WTF::Function<void ()>::operator()() const
11  0x3059ca79c WebCore::EventLoopFunctionDispatchTask::execute()
12  0x3059bc74c WebCore::EventLoop::run(std::__1::optional<WTF::ApproximateTime>)
13  0x305bc7b98 WebCore::WindowEventLoop::didReachTimeToRun()
14  0x305bd1cf8 WebCore::Timer::Timer<WebCore::WindowEventLoop, WebCore::WindowEventLoop>(WebCore::WindowEventLoop&, void (WebCore::WindowEventLoop::*)())::'lambda'()::operator()() const
15  0x305bd1b50 WTF::Detail::CallableWrapper<WebCore::Timer::Timer<WebCore::WindowEventLoop, WebCore::WindowEventLoop>(WebCore::WindowEventLoop&, void (WebCore::WindowEventLoop::*)())::'lambda'(), void>::call()
16  0x30003732c WTF::Function<void ()>::operator()() const
17  0x300188700 WebCore::Timer::fired()
18  0x306f95928 WebCore::ThreadTimers::sharedTimerFiredInternal()
19  0x306fa09e4 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const
20  0x306fa0990 WTF::Detail::CallableWrapper<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, void>::call()
21  0x30003732c WTF::Function<void ()>::operator()() const
22  0x306f2b2a4 WebCore::MainThreadSharedTimer::fired()
23  0x3070ac020 WebCore::timerFired(__CFRunLoopTimer*, void*)
24  0x192ba718c __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
25  0x192ba6e4c __CFRunLoopDoTimer
26  0x192ba69c4 __CFRunLoopDoTimers
27  0x192b9776c __CFRunLoopRun
28  0x192c51e34 _CFRunLoopRunSpecificWithOptions
29  0x194de6964 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
30  0x1943e5a50 -[NSRunLoop(NSRunLoop) run]
31  0x1927e4e14 _xpc_objc_main
com.apple.WebKit.WebContent.Development terminated (pid 22773) for reason: crash

Test result:
https://ews-build.webkit.org/#/builders/161/builds/11253

History:
https://results.webkit.org/?suite=layout-tests&test=webrtc%2FaddTransceiver-then-addTrack.html

[Radar WebKit Bug Importer]

<rdar://problem/169044514>

[EWS]

Test gardening commit 306365@main (0c0e41008233): <https://commits.webkit.org/306365@main>

Reviewed commits have been landed. Closing PR #57425 and removing active labels.