[Webkit-unassigned] [Bug 207915] webaudio/webaudio-gc.html is a flaky crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=207915

--- Comment #1 from Aakash Jain <aakash_jain at apple.com> ---
>From https://ews-build.webkit.org/results/macOS-Mojave-Debug-WK1-Tests-EWS/r390930-3063/webaudio/webaudio-gc-crash-log.txt

Termination Signal:    Segmentation fault: 11


Application Specific Information:
CRASHING TEST: webaudio/webaudio-gc.html

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.JavaScriptCore            0x0000000108a0b260 WTFCrash + 16 (Assertions.cpp:305)
1   com.apple.WebCore                   0x000000011aad3dbb WTFCrashWithInfo(int, char const*, char const*, int) + 27
2   com.apple.WebCore                   0x000000011c8b18bc WebCore::AudioContext::~AudioContext() + 652
3   com.apple.WebCore                   0x000000011c9286d5 WebCore::OfflineAudioContext::~OfflineAudioContext() + 21
4   com.apple.WebCore                   0x000000011c928505 WebCore::OfflineAudioContext::~OfflineAudioContext() + 21
5   com.apple.WebCore                   0x000000011c928529 WebCore::OfflineAudioContext::~OfflineAudioContext() + 25
6   com.apple.WebCore                   0x000000011b04bc82 WTF::ThreadSafeRefCounted<WebCore::AudioContext, (WTF::DestructionThread)0>::deref() const::'lambda'()::operator()() const + 50
7   com.apple.WebCore                   0x000000011b04bc3d WTF::ThreadSafeRefCounted<WebCore::AudioContext, (WTF::DestructionThread)0>::deref() const + 61
8   com.apple.WebCore                   0x000000011c8ba699 WebCore::AudioContext::derefEventTarget() + 25
9   com.apple.WebCore                   0x000000011afaa326 WebCore::EventTarget::deref() + 22
10  com.apple.WebCore                   0x000000011b44664e void WTF::derefIfNotNull<WebCore::EventTarget>(WebCore::EventTarget*) + 46
11  com.apple.WebCore                   0x000000011b446619 WTF::RefPtr<WebCore::EventTarget, WTF::DumbPtrTraits<WebCore::EventTarget> >::~RefPtr() + 41
12  com.apple.WebCore                   0x000000011b4465c5 WTF::RefPtr<WebCore::EventTarget, WTF::DumbPtrTraits<WebCore::EventTarget> >::~RefPtr() + 21
13  com.apple.WebCore                   0x000000011d410e71 WebCore::Event::~Event() + 65


>From https://build.webkit.org/results/Apple%20Mojave%20Debug%20WK2%20(Tests)/r256851%20(7628)/webaudio/webaudio-gc-crash-log.txt:

ASSERTION FAILED: m_finishedNodes.isEmpty()
./Modules/webaudio/AudioContext.cpp(204) : virtual WebCore::AudioContext::~AudioContext()

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