[Webkit-unassigned] [Bug 173039] New: Layout Test webrtc/ephemeral-certificates-and-cnames.html is flaky.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=173039

            Bug ID: 173039
           Summary: Layout Test
                    webrtc/ephemeral-certificates-and-cnames.html is
                    flaky.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jlewis3 at apple.com

webrtc/ephemeral-certificates-and-cnames.html is a flaky crash

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=webrtc%2Fephemeral-certificates-and-cnames.html

https://build.webkit.org/builders/Apple%20Sierra%20Debug%20WK2%20(Tests)/builds/1388
https://build.webkit.org/results/Apple%20Sierra%20Debug%20WK2%20(Tests)/r217849%20(1388)/results.html

Shows to be happening on Sierra Debug WK2

Added in https://trac.webkit.org/changeset/214690/webkit

ASSERTION FAILED: !m_isolatedWorld->isNormal() || m_wrapper || !m_jsFunction
/Volumes/Data/slave/sierra-debug/build/Source/WebCore/bindings/js/JSEventListener.h(128) : JSC::JSObject *WebCore::JSEventListener::jsFunction(WebCore::ScriptExecutionContext *) const
1   0x11e391b1d WTFCrash
2   0x11321d0c3 WebCore::JSEventListener::jsFunction(WebCore::ScriptExecutionContext*) const
3   0x113644cae WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*)
4   0x112add396 WebCore::EventTarget::fireEventListeners(WebCore::Event&, WTF::Vector<WTF::RefPtr<WebCore::RegisteredEventListener>, 1ul, WTF::CrashOnOverflow, 16ul>)
5   0x112adcf5e WebCore::EventTarget::fireEventListeners(WebCore::Event&)
6   0x112adcdf9 WebCore::EventTarget::dispatchEvent(WebCore::Event&)
7   0x1147a0ebc WebCore::RTCPeerConnection::fireEvent(WebCore::Event&)
8   0x1142a1bba WebCore::PeerConnectionBackend::doneGatheringCandidates()
9   0x113efe6a6 WebCore::LibWebRTCMediaEndpoint::OnIceGatheringChange(webrtc::PeerConnectionInterface::IceGatheringState)::$_10::operator()() const
10  0x113efe5a9 WTF::Function<void ()>::CallableWrapper<WebCore::LibWebRTCMediaEndpoint::OnIceGatheringChange(webrtc::PeerConnectionInterface::IceGatheringState)::$_10>::call()
11  0x11e3c19ae WTF::Function<void ()>::operator()() const
12  0x11e3c15e4 WTF::dispatchFunctionsFromMainThread()
13  0x11e3c39b1 WTF::timerFired(__CFRunLoopTimer*, void*)
14  0x7fffa8859e04 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
15  0x7fffa8859a93 __CFRunLoopDoTimer
16  0x7fffa88595ea __CFRunLoopDoTimers
17  0x7fffa8850fc1 __CFRunLoopRun
18  0x7fffa8850544 CFRunLoopRunSpecific
19  0x7fffa7db0ebc RunCurrentEventLoopInMode
20  0x7fffa7db0cf1 ReceiveNextEventCommon
21  0x7fffa7db0b26 _BlockUntilNextEventMatchingListInModeWithFilter
22  0x7fffa6349a54 _DPSNextEvent
23  0x7fffa6ac57ee -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:]
24  0x7fffa633e3db -[NSApplication run]
25  0x7fffa6308e0e NSApplicationMain
26  0x7fffbe7e18c7 _xpc_objc_main
27  0x7fffbe7e02e4 xpc_main
28  0x109e5d105 main
29  0x7fffbe588235 start
30  0x1

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