Bug 307835 – REGRESSION(307241@main?): [macOS iOS] ASSERTION FAILED: m_ptr /Volumes/Data/worker/Apple-Tahoe-Debug-Build/build/WebKitBuild/Debug/usr/local/include/wtf/RefPtr.

• Component: DOM
• Status: RESOLVED DUPLICATE

[Marta Darbinyan]

The following crash is occurring on macOS and iOS after 307241@main on streams/blob-and-tee.html.

The test is crashing on EWS bots and triggering re-tries.

ASSERTION FAILED: m_ptr
/Volumes/Data/worker/Apple-Tahoe-Debug-Build/build/WebKitBuild/Debug/usr/local/include/wtf/RefPtr.h(79) : T &WTF::RefPtr<WebCore::ReadableStream>::operator*() const [T = WebCore::ReadableStream, _PtrTraits = WTF::RawPtrTraits<WebCore::ReadableStream>, _RefDerefTraits = WTF::DefaultRefDerefTraits<WebCore::ReadableStream>]
1   0x34b84615c WTF::RefPtr<WebCore::ReadableStream, WTF::RawPtrTraits<WebCore::ReadableStream>, WTF::DefaultRefDerefTraits<WebCore::ReadableStream>>::operator*() const
2   0x34ce138d8 WTF::RefPtr<WebCore::ReadableStream, WTF::RawPtrTraits<WebCore::ReadableStream>, WTF::DefaultRefDerefTraits<WebCore::ReadableStream>>::operator->() const
3   0x34d6e94d4 WebCore::TeeBYOBReadRequest::runChunkStepsInMicrotask(JSC::JSValue)
4   0x34d6e905c auto WebCore::TeeBYOBReadRequest::runChunkSteps(JSC::JSValue)::'lambda'(auto)::operator()<JSC::JSValue>(auto) const
5   0x34d6e8dd0 WTF::Detail::CallableWrapper<WebCore::TeeBYOBReadRequest::runChunkSteps(JSC::JSValue)::'lambda'(auto), void, JSC::JSValue>::call(JSC::JSValue)
6   0x34d6e3958 WTF::Function<void (JSC::JSValue)>::operator()(JSC::JSValue) const
7   0x34d6e38a8 WebCore::StreamTeeState::queueMicrotaskWithValue(JSC::JSValue, WTF::Function<void (JSC::JSValue)>&&)::'lambda'()::operator()() const
8   0x34d6e37d8 WTF::Detail::CallableWrapper<WebCore::StreamTeeState::queueMicrotaskWithValue(JSC::JSValue, WTF::Function<void (JSC::JSValue)>&&)::'lambda'(), void>::call()
9   0x349437180 WTF::Function<void ()>::operator()() const
10  0x34ee05a50 WebCore::EventLoopFunctionMicrotaskDispatcher::run(JSC::QueuedTask&)
11  0x34ee9ca6c WebCore::MicrotaskQueue::performMicrotaskCheckpoint()::$_0::operator()(JSC::QueuedTask&) const
12  0x34ee7be64 void JSC::MicrotaskQueue::performMicrotaskCheckpoint<false, WebCore::MicrotaskQueue::performMicrotaskCheckpoint()::$_0>(JSC::VM&, WebCore::MicrotaskQueue::performMicrotaskCheckpoint()::$_0 const&)
13  0x34ee7bac8 WebCore::MicrotaskQueue::performMicrotaskCheckpoint()
14  0x34edf8c54 WebCore::EventLoop::performMicrotaskCheckpoint()
15  0x34edf9aa8 WebCore::EventLoop::run(std::__1::optional<WTF::ApproximateTime>)
16  0x34f01495c WebCore::WindowEventLoop::didReachTimeToRun()
17  0x34f01ae24 WebCore::Timer::Timer<WebCore::WindowEventLoop, WebCore::WindowEventLoop>(WebCore::WindowEventLoop&, void (WebCore::WindowEventLoop::*)())::'lambda'()::operator()() const
18  0x34f01ac7c WTF::Detail::CallableWrapper<WebCore::Timer::Timer<WebCore::WindowEventLoop, WebCore::WindowEventLoop>(WebCore::WindowEventLoop&, void (WebCore::WindowEventLoop::*)())::'lambda'(), void>::call()
19  0x349437180 WTF::Function<void ()>::operator()() const
20  0x349588094 WebCore::Timer::fired()
21  0x3503e1bc0 WebCore::ThreadTimers::sharedTimerFiredInternal()
22  0x3503ebef4 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const
23  0x3503ebea0 WTF::Detail::CallableWrapper<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, void>::call()
24  0x349437180 WTF::Function<void ()>::operator()() const
25  0x35037644c WebCore::MainThreadSharedTimer::fired()
26  0x3504f7368 WebCore::timerFired(__CFRunLoopTimer*, void*)
27  0x182a0f18c __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
28  0x182a0ee4c __CFRunLoopDoTimer
29  0x182a0e9c4 __CFRunLoopDoTimers
30  0x1829ff76c __CFRunLoopRun
31  0x182ab9e34 _CFRunLoopRunSpecificWithOptions
com.apple.WebKit.WebContent.Development terminated (pid 31163) for reason: crash

Test results:
https://build.webkit.org/results/Apple-Tahoe-Debug-AppleSilicon-WK2-Tests/307467@main%20(845)/results.html

Test history:
https://results.webkit.org/?suite=layout-tests&test=streams%2Fblob-and-tee.html&flavor=wk2

[Radar WebKit Bug Importer]

<rdar://problem/170338139>

[EWS]

Test gardening commit 307509@main (5b4d8ee94b08): <https://commits.webkit.org/307509@main>

Reviewed commits have been landed. Closing PR #58660 and removing active labels.

[youenn fablet]

*** This bug has been marked as a duplicate of bug 307794 ***