Bug 237172 – [ BigSur+ EWS ] imported/w3c/web-platform-tests/speech-api/SpeechSynthesis-speak-twice.html is a flaky ASSERTION FAILED / failure

• Component: New Bugs
• Status: NEW

[Dawn Morningstar]

imported/w3c/web-platform-tests/speech-api/SpeechSynthesis-speak-twice.html
Is flakily assertion failed and failing on Mac and EWS

HISTORY:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fspeech-api%2FSpeechSynthesis-speak-twice.html

DIFF:
--- /Volumes/Data/worker/bigsur-release-applesilicon-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/speech-api/SpeechSynthesis-speak-twice-expected.txt
+++ /Volumes/Data/worker/bigsur-release-applesilicon-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/speech-api/SpeechSynthesis-speak-twice-actual.txt
@@ -1,3 +1,5 @@
 
-PASS Using the same SpeechSynthesisUtterance twice for speechSynthesis.speak()
+Harness Error (TIMEOUT), message = null
 
+TIMEOUT Using the same SpeechSynthesisUtterance twice for speechSynthesis.speak() Test timed out
+

DIFF-URL:
https://build.webkit.org/results/Apple-BigSur-Release-AppleSilicon-WK1-Tests/r290470%20(7931)/imported/w3c/web-platform-tests/speech-api/SpeechSynthesis-speak-twice-diff.txt

stderr:
ASSERTION FAILED: m_wrapper

CRASH-LOG:
https://build.webkit.org/results/Apple-Monterey-Debug-AppleSilicon-WK1-Tests/r290328%20(1549)/imported/w3c/web-platform-tests/speech-api/SpeechSynthesis-speak-twice-crash-log.txt

[Radar WebKit Bug Importer]

<rdar://problem/89450002>

[Dawn Morningstar]

Setting expectations while this is being investigated as it is slowing down EWS.

[Dawn Morningstar]

Created attachment 453161 [details]
expectations

[Robert Jenner]

Comment on attachment 453161 [details]
expectations

Clearing flags on attachment: 453161

Committed r290486 (247779@trunk): <https://commits.webkit.org/247779@trunk>

[Dawn Morningstar]

failure was replicated at Monterey production TOT using:
run-webkit-tests imported/w3c/web-platform-tests/speech-api/SpeechSynthesis-speak-twice.html

[Ryan Haddad]

The assertion failure is:
ASSERTION FAILED: m_wrapper
./bindings/js/JSEventListener.h(157) : JSC::JSObject *WebCore::JSEventListener::ensureJSFunction(WebCore::ScriptExecutionContext &) const
1   0x150849bbc WTFCrash
2   0x104267d90 WTFCrashWithInfo(int, char const*, char const*, int)
3   0x10662fbc0 WebCore::JSEventListener::ensureJSFunction(WebCore::ScriptExecutionContext&) const
4   0x10662f288 WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext&, WebCore::Event&)
5   0x106ee8b98 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)
6   0x106ee8710 WebCore::EventTarget::fireEventListeners(WebCore::Event&, WebCore::EventTarget::EventInvokePhase)
7   0x106ee85d0 WebCore::EventTarget::dispatchEvent(WebCore::Event&)
8   0x10617c07c WebCore::SpeechSynthesis::fireEvent(WTF::AtomString const&, WebCore::SpeechSynthesisUtterance&, unsigned long, WTF::String const&)
9   0x10617c28c WebCore::SpeechSynthesis::handleSpeakingCompleted(WebCore::SpeechSynthesisUtterance&, bool)
10  0x10617cb2c WebCore::SpeechSynthesis::didFinishSpeaking(WebCore::PlatformSpeechSynthesisUtterance&)
11  0x10617c700 WebCore::SpeechSynthesis::didFinishSpeaking()
12  0x12c821e10 WebKit::WebSpeechSynthesisClient::speak(WTF::RefPtr<WebCore::PlatformSpeechSynthesisUtterance, WTF::RawPtrTraits<WebCore::PlatformSpeechSynthesisUtterance>, WTF::DefaultRefDerefTraits<WebCore::PlatformSpeechSynthesisUtterance> >)::$_9::operator()()
13  0x12c821cfc WTF::Detail::CallableWrapper<WebKit::WebSpeechSynthesisClient::speak(WTF::RefPtr<WebCore::PlatformSpeechSynthesisUtterance, WTF::RawPtrTraits<WebCore::PlatformSpeechSynthesisUtterance>, WTF::DefaultRefDerefTraits<WebCore::PlatformSpeechSynthesisUtterance> >)::$_9, void>::call()
14  0x12a59562c WTF::Function<void ()>::operator()() const