Bug 235978

Summary:

Flaky scope.assertNoException() assertion in ~JSExecState when running workers WPT tests

Product:

WebKit

Reporter:

Chris Dumez <cdumez>

Component:

WebCore Misc.

Assignee:

Mark Lam <mark.lam>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

ap, ews-watchlist, hi, mark.lam, mkwst, webkit-bug-importer, ysuzuki

Priority:

Keywords:

InRadar

Version:

WebKit Nightly Build

Hardware:

Unspecified

OS:

Unspecified

Bug Depends on:

Bug Blocks:

235958

Attachments:

Description	Flags
Patch	mark.lam: review+, ews-feeder: commit-queue-
WIP Patch	none
proposed patch.	ews-feeder: commit-queue-
proposed patch.	none

Chris Dumez

Reported 2022-02-01 14:54:50 PST

Flaky scope.assertNoException() assertion in ~JSExecState when running workers WPT tests: Thread 8 Crashed:: WebCore: SharedWorker 0 JavaScriptCore 0x27fca827e WTFCrash + 14 1 WebCore 0x293d64baa JSC::ExceptionScope::assertNoException() + 122 (ExceptionScope.h:55) 2 WebCore 0x296198305 WebCore::JSExecState::~JSExecState() + 325 (JSExecState.h:149) 3 WebCore 0x2961980e5 WebCore::JSExecState::~JSExecState() + 21 (JSExecState.h:133) 4 WebCore 0x296230857 WebCore::JSExecState::loadModule(JSC::JSGlobalObject&, JSC::SourceCode const&, JSC::JSValue) + 71 (JSExecState.h:105) 5 WebCore 0x2986d80fa WebCore::WorkerOrWorkletScriptController::loadModuleSynchronously(WebCore::WorkerScriptFetcher&, WebCore::ScriptSourceCode const&) + 234 (WorkerOrWorkletScriptController.cpp:286) 6 WebCore 0x298706045 WebCore::WorkerThread::evaluateScriptIfNecessary(WTF::String&) + 741 (WorkerThread.cpp:150) 7 WebCore 0x2986dbff3 WebCore::WorkerOrWorkletThread::workerOrWorkletThread() + 723 (WorkerOrWorkletThread.cpp:175) 8 WebCore 0x2987170e8 WebCore::WorkerThread::createThread()::$_4::operator()() const + 24 (WorkerThread.cpp:121) 9 WebCore 0x298717089 WTF::Detail::CallableWrapper<WebCore::WorkerThread::createThread()::$_4, void>::call() + 25 (Function.h:53) 10 JavaScriptCore 0x27fcd1c02 WTF::Function<void ()>::operator()() const + 130 11 JavaScriptCore 0x27fd97538 WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) + 408 12 JavaScriptCore 0x27fda3175 WTF::wtfThreadEntryPoint(void*) + 21 13 libsystem_pthread.dylib 0x7ff80dad64f4 _pthread_start + 125 14 libsystem_pthread.dylib 0x7ff80dad200f thread_start + 15

Attachments
Patch (3.45 KB, patch) 2022-02-01 14:57 PST, Chris Dumez	mark.lam: review+ ews-feeder: commit-queue-	Details Formatted Diff Diff
WIP Patch (330.07 KB, patch) 2022-02-01 15:22 PST, Chris Dumez	no flags	Details Formatted Diff Diff
proposed patch. (10.27 KB, patch) 2022-02-02 17:13 PST, Mark Lam	ews-feeder: commit-queue-	Details Formatted Diff Diff
proposed patch. (10.22 KB, patch) 2022-02-02 17:47 PST, Mark Lam	no flags	Details Formatted Diff Diff
Show Obsolete (3) View All Add attachment proposed patch, testcase, etc.