Bug 268802 – Intermittent crash in imported/w3c/web-platform-tests/workers/semantics/multiple-workers/exposure.any.html

• Status: RESOLVED
• Resolution: FIXED
• Component: Service Workers

[Jean-Yves Avenard [:jya]]

```
No crash log found for com.apple.WebKit.WebContent.Development:9169.

stdout:

stderr:
1   0x138265270 WTFCrash
2   0x282d54150 WebCore::AudioWorkletProcessor::buildJSArguments(JSC::VM&, JSC::JSGlobalObject&, JSC::MarkedVector<JSC::JSValue, 8ul, WTF::RecordOverflow>&, WTF::Vector<WTF::RefPtr<WebCore::AudioBus, WTF::RawPtrTraits<WebCore::AudioBus>, WTF::DefaultRefDerefTraits<WebCore::AudioBus>>, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&, WTF::Vector<WTF::Ref<WebCore::AudioBus, WTF::RawPtrTraits<WebCore::AudioBus>, WTF::DefaultRefDerefTraits<WebCore::AudioBus>>, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&, WTF::HashMap<WTF::String, std::__1::unique_ptr<WebCore::AudioArray<float>, std::__1::default_delete<WebCore::AudioArray<float>>>, WTF::DefaultHash<WTF::String>, WTF::HashTraits<WTF::String>, WTF::HashTraits<std::__1::unique_ptr<WebCore::AudioArray<float>, std::__1::default_delete<WebCore::AudioArray<float>>>>, WTF::MemoryCompactLookupOnlyRobinHoodHashTableTraits> const&)
3   0x28328eb70 WebCore::Node::refAllowingPartiallyDestroyed() const
4   0x28018c600 WebCore::Node::ref() const
5   0x283db7ef0 WebCore::ScriptExecutionContext::ref()
6   0x282d96f64 WTF::DefaultRefDerefTraits<WebCore::ScriptExecutionContext>::refIfNotNull(WebCore::ScriptExecutionContext*)
7   0x2832feba4 WTF::RefPtr<WebCore::ScriptExecutionContext, WTF::RawPtrTraits<WebCore::ScriptExecutionContext>, WTF::DefaultRefDerefTraits<WebCore::ScriptExecutionContext>>::RefPtr(WebCore::ScriptExecutionContext*)
8   0x282d5cf84 WTF::RefPtr<WebCore::ScriptExecutionContext, WTF::RawPtrTraits<WebCore::ScriptExecutionContext>, WTF::DefaultRefDerefTraits<WebCore::ScriptExecutionContext>>::RefPtr(WebCore::ScriptExecutionContext*)
9   0x283d10798 WebCore::MessagePort::messageAvailable()
10  0x283d1ffb4 auto WebCore::MessagePort::notifyMessageAvailable(WebCore::MessagePortIdentifier const&)::$_7::operator()<WebCore::ScriptExecutionContext>(WebCore::ScriptExecutionContext&) const
11  0x283d1fedc WTF::Detail::CallableWrapper<WebCore::MessagePort::notifyMessageAvailable(WebCore::MessagePortIdentifier const&)::$_7, void, WebCore::ScriptExecutionContext&>::call(WebCore::ScriptExecutionContext&)
12  0x28259db98 WTF::Function<void (WebCore::ScriptExecutionContext&)>::operator()(WebCore::ScriptExecutionContext&) const
13  0x282ec57a0 WebCore::ScriptExecutionContext::Task::performTask(WebCore::ScriptExecutionContext&)
14  0x285f81290 WebCore::WorkerDedicatedRunLoop::Task::performTask(WebCore::WorkerOrWorkletGlobalScope*)
15  0x285f80758 WebCore::WorkerDedicatedRunLoop::runInMode(WebCore::WorkerOrWorkletGlobalScope*, WebCore::ModePredicate const&)
16  0x285f7ed90 WebCore::WorkerDedicatedRunLoop::run(WebCore::WorkerOrWorkletGlobalScope*)
17  0x285f7ed14 WebCore::WorkerOrWorkletThread::runEventLoop()
18  0x285f7f0a4 WebCore::WorkerOrWorkletThread::workerOrWorkletThread()
19  0x285fa2738 WebCore::WorkerThread::createThread()::$_18::operator()() const
20  0x285fa26e4 WTF::Detail::CallableWrapper<WebCore::WorkerThread::createThread()::$_18, void>::call()
21  0x138290468 WTF::Function<void ()>::operator()() const
22  0x13837ed04 WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*)
23  0x13838afe0 WTF::wtfThreadEntryPoint(void*)
24  0x18d871034 _pthread_start
25  0x18d86be3c thread_start
com.apple.WebKit.WebContent.Development terminated (pid 9169) for reason: crash
LEAK: 1 WebPageProxy

```

[Radar WebKit Bug Importer]

<rdar://problem/122365041>

[Chris Dumez]

*** Bug 268801 has been marked as a duplicate of this bug. ***

[Chris Dumez]

I managed to reproduce like so:
```
run-webkit-tests --debug --no-build --force --repeat-each=10 -f imported/w3c/web-platform-tests/workers/
```

Crash on a worker thread:
```
Thread 13 Crashed:: WebCore: SharedWorker
0   JavaScriptCore                	       0x13a7ca8d8 WTFCrash + 24
1   WebCore                       	       0x328c07a84 WTFCrashWithInfo(int, char const*, char const*, int) + 36 (Assertions.h:780)
2   WebCore                       	       0x328d6fec4 WebCore::Node::refAllowingPartiallyDestroyed() const + 116 (Node.h:823)
3   WebCore                       	       0x328d6fe44 WebCore::Node::ref() const + 228 (Node.h:817)
4   WebCore                       	       0x329825d60 WebCore::ScriptExecutionContext::ref() + 104 (ScriptExecutionContext.cpp:869)
5   WebCore                       	       0x32872c6b8 WTF::DefaultRefDerefTraits<WebCore::ScriptExecutionContext>::refIfNotNull(WebCore::ScriptExecutionContext*) + 48 (Ref.h:49)
6   WebCore                       	       0x32872c670 WTF::RefPtr<WebCore::ScriptExecutionContext, WTF::RawPtrTraits<WebCore::ScriptExecutionContext>, WTF::DefaultRefDerefTraits<WebCore::ScriptExecutionContext>>::RefPtr(WebCore::ScriptExecutionContext*) + 40 (RefPtr.h:48)
7   WebCore                       	       0x328c39530 WTF::RefPtr<WebCore::ScriptExecutionContext, WTF::RawPtrTraits<WebCore::ScriptExecutionContext>, WTF::DefaultRefDerefTraits<WebCore::ScriptExecutionContext>>::RefPtr(WebCore::ScriptExecutionContext*) + 40 (RefPtr.h:48)
8   WebCore                       	       0x3297723cc WebCore::MessagePort::messageAvailable() + 48 (MessagePort.cpp:203)
9   WebCore                       	       0x329782808 auto WebCore::MessagePort::notifyMessageAvailable(WebCore::MessagePortIdentifier const&)::$_7::operator()<WebCore::ScriptExecutionContext>(WebCore::ScriptExecutionContext&) const + 164 (MessagePort.cpp:86)
10  WebCore                       	       0x329782728 WTF::Detail::CallableWrapper<WebCore::MessagePort::notifyMessageAvailable(WebCore::MessagePortIdentifier const&)::$_7, void, WebCore::ScriptExecutionContext&>::call(WebCore::ScriptExecutionContext&) + 40 (Function.h:53)
11  WebCore                       	       0x327ec0854 WTF::Function<void (WebCore::ScriptExecutionContext&)>::operator()(WebCore::ScriptExecutionContext&) const + 180 (Function.h:82)
12  WebCore                       	       0x32886ad50 WebCore::ScriptExecutionContext::Task::performTask(WebCore::ScriptExecutionContext&) + 36 (ScriptExecutionContext.h:233)
13  WebCore                       	       0x32bbfcf20 WebCore::WorkerDedicatedRunLoop::Task::performTask(WebCore::WorkerOrWorkletGlobalScope*) + 208 (WorkerRunLoop.cpp:289)
14  WebCore                       	       0x32bbfc3a8 WebCore::WorkerDedicatedRunLoop::runInMode(WebCore::WorkerOrWorkletGlobalScope*, WebCore::ModePredicate const&) + 892 (WorkerRunLoop.cpp:224)
15  WebCore                       	       0x32bbfa768 WebCore::WorkerDedicatedRunLoop::run(WebCore::WorkerOrWorkletGlobalScope*) + 116 (WorkerRunLoop.cpp:156)
16  WebCore                       	       0x32bbfa6e4 WebCore::WorkerOrWorkletThread::runEventLoop() + 92 (WorkerOrWorkletThread.cpp:113)
17  WebCore                       	       0x32bbfab64 WebCore::WorkerOrWorkletThread::workerOrWorkletThread() + 952 (WorkerOrWorkletThread.cpp:187)
18  WebCore                       	       0x32bc203e4 WebCore::WorkerThread::createThread()::$_18::operator()() const + 32 (WorkerThread.cpp:127)
19  WebCore                       	       0x32bc20388 WTF::Detail::CallableWrapper<WebCore::WorkerThread::createThread()::$_18, void>::call() + 32 (Function.h:53)
20  JavaScriptCore                	       0x13c70d3fc WTF::Function<void ()>::operator()() const + 172
21  JavaScriptCore                	       0x13a8f6248 WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) + 388
22  JavaScriptCore                	       0x13a9033f8 WTF::wtfThreadEntryPoint(void*) + 28
```

[Chris Dumez]

Pull request: https://github.com/WebKit/WebKit/pull/23935

[EWS]

Committed 274218@main (cf745fa2e33c): <https://commits.webkit.org/274218@main>

Reviewed commits have been landed. Closing PR #23935 and removing active labels.