Bug 232920 – imported/w3c/web-platform-tests/webmessaging/broadcastchannel/workers.html is flaky crashing in debug

• Component: WebCore Misc.
• Status: RESOLVED FIXED

[Chris Dumez]

imported/w3c/web-platform-tests/webmessaging/broadcastchannel/workers.html is flaky crashing in debug:
ASSERTION FAILED: m_wasConstructedOnMainThread == isMainThread()
/Volumes/Data/worker/macOS-AppleSilicon-Big-Sur-Debug-Build-EWS/build/WebKitBuild/Debug/usr/local/include/wtf/CallbackAggregator.h(41) : WTF::CallbackAggregator::~CallbackAggregator()
1   0x13a3ae208 WTFCrash
2   0x117b47cb0 WebCore::JSTransformStreamDefaultController::createPrototype(JSC::VM&, WebCore::JSDOMGlobalObject&)
3   0x1194c5df8 WTF::CallbackAggregator::~CallbackAggregator()
4   0x1194c5d60 WTF::CallbackAggregator::~CallbackAggregator()
5   0x1194c5d28 WTF::ThreadSafeRefCounted<WTF::CallbackAggregator, (WTF::DestructionThread)0>::deref() const::'lambda'()::operator()() const
6   0x1194c5c98 WTF::ThreadSafeRefCounted<WTF::CallbackAggregator, (WTF::DestructionThread)0>::deref() const
7   0x1194c5c24 WTF::Ref<WTF::CallbackAggregator, WTF::RawPtrTraits<WTF::CallbackAggregator> >::~Ref()
8   0x1194bde40 WTF::Ref<WTF::CallbackAggregator, WTF::RawPtrTraits<WTF::CallbackAggregator> >::~Ref()
9   0x1194c352c WebCore::BroadcastChannel::dispatchMessageTo(WTF::ObjectIdentifier<WebCore::BroadcastChannelIdentifierType>, WTF::Ref<WebCore::SerializedScriptValue, WTF::RawPtrTraits<WebCore::SerializedScriptValue> >&&, WTF::CompletionHandler<void ()>&&)::$_4::~$_4()
10  0x1194bde0c WebCore::BroadcastChannel::dispatchMessageTo(WTF::ObjectIdentifier<WebCore::BroadcastChannelIdentifierType>, WTF::Ref<WebCore::SerializedScriptValue, WTF::RawPtrTraits<WebCore::SerializedScriptValue> >&&, WTF::CompletionHandler<void ()>&&)::$_4::~$_4()
11  0x1194cfed8 WTF::Detail::CallableWrapper<WebCore::BroadcastChannel::dispatchMessageTo(WTF::ObjectIdentifier<WebCore::BroadcastChannelIdentifierType>, WTF::Ref<WebCore::SerializedScriptValue, WTF::RawPtrTraits<WebCore::SerializedScriptValue> >&&, WTF::CompletionHandler<void ()>&&)::$_4, void, WebCore::ScriptExecutionContext&>::~CallableWrapper()
12  0x1194cfdac WTF::Detail::CallableWrapper<WebCore::BroadcastChannel::dispatchMessageTo(WTF::ObjectIdentifier<WebCore::BroadcastChannelIdentifierType>, WTF::Ref<WebCore::SerializedScriptValue, WTF::RawPtrTraits<WebCore::SerializedScriptValue> >&&, WTF::CompletionHandler<void ()>&&)::$_4, void, WebCore::ScriptExecutionContext&>::~CallableWrapper()
13  0x1194cfde0 WTF::Detail::CallableWrapper<WebCore::BroadcastChannel::dispatchMessageTo(WTF::ObjectIdentifier<WebCore::BroadcastChannelIdentifierType>, WTF::Ref<WebCore::SerializedScriptValue, WTF::RawPtrTraits<WebCore::SerializedScriptValue> >&&, WTF::CompletionHandler<void ()>&&)::$_4, void, WebCore::ScriptExecutionContext&>::~CallableWrapper()
14  0x11681d034 std::__1::default_delete<WTF::Detail::CallableWrapperBase<void, WebCore::ScriptExecutionContext&> >::operator()(WTF::Detail::CallableWrapperBase<void, WebCore::ScriptExecutionContext&>*) const
15  0x11681cfac std::__1::unique_ptr<WTF::Detail::CallableWrapperBase<void, WebCore::ScriptExecutionContext&>, std::__1::default_delete<WTF::Detail::CallableWrapperBase<void, WebCore::ScriptExecutionContext&> > >::reset(WTF::Detail::CallableWrapperBase<void, WebCore::ScriptExecutionContext&>*)
16  0x11681cf40 std::__1::unique_ptr<WTF::Detail::CallableWrapperBase<void, WebCore::ScriptExecutionContext&>, std::__1::default_delete<WTF::Detail::CallableWrapperBase<void, WebCore::ScriptExecutionContext&> > >::~unique_ptr()
17  0x11681cf04 std::__1::unique_ptr<WTF::Detail::CallableWrapperBase<void, WebCore::ScriptExecutionContext&>, std::__1::default_delete<WTF::Detail::CallableWrapperBase<void, WebCore::ScriptExecutionContext&> > >::~unique_ptr()
18  0x11681ced0 WTF::Function<void (WebCore::ScriptExecutionContext&)>::~Function()
19  0x11672b010 WTF::Function<void (WebCore::ScriptExecutionContext&)>::~Function()
20  0x117ab03f0 WebCore::ScriptExecutionContext::Task::~Task()
21  0x11908dcc0 WebCore::ScriptExecutionContext::Task::~Task()
22  0x11b902774 WebCore::WorkerDedicatedRunLoop::Task::~Task()
23  0x11b90270c WebCore::WorkerDedicatedRunLoop::Task::~Task()
24  0x11b9026d4 std::__1::default_delete<WebCore::WorkerDedicatedRunLoop::Task>::operator()(WebCore::WorkerDedicatedRunLoop::Task*) const
25  0x11b9026a0 std::__1::unique_ptr<WebCore::WorkerDedicatedRunLoop::Task, std::__1::default_delete<WebCore::WorkerDedicatedRunLoop::Task> >::reset(WebCore::WorkerDedicatedRunLoop::Task*)
26  0x11b902634 std::__1::unique_ptr<WebCore::WorkerDedicatedRunLoop::Task, std::__1::default_delete<WebCore::WorkerDedicatedRunLoop::Task> >::~unique_ptr()
27  0x11b8ddb28 std::__1::unique_ptr<WebCore::WorkerDedicatedRunLoop::Task, std::__1::default_delete<WebCore::WorkerDedicatedRunLoop::Task> >::~unique_ptr()
28  0x11b8dd258 WebCore::WorkerDedicatedRunLoop::runCleanupTasks(WebCore::WorkerOrWorkletGlobalScope*)
29  0x11b8db7c4 WebCore::WorkerDedicatedRunLoop::run(WebCore::WorkerOrWorkletGlobalScope*)
30  0x11b8db738 WebCore::WorkerOrWorkletThread::runEventLoop()
31  0x11b898da4 WebCore::DedicatedWorkerThread::runEventLoop()

[Chris Dumez]

Created attachment 443767 [details]
Patch

[Alex Christensen]

*** Bug 232946 has been marked as a duplicate of this bug. ***

[EWS]

Committed r285587 (244095@main): <https://commits.webkit.org/244095@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 443767 [details].

[Radar WebKit Bug Importer]

<rdar://problem/85258453>