285954 2025-01-14 15:27:33 -0800 [macOS Debug] ASSERTION FAILED: Unsafe to ref/deref from different threads in inspector/worker/runtime-basic-subworker.html (failure in EWS) 2025-01-22 08:22:15 -0800 1 1 1 Unclassified WebKit Web Inspector WebKit Nightly Build Unspecified Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=286300 InRadar P2 Normal --- 1 darbinyan webkit-unassigned hi inspector-bugzilla-changes webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 2087252 0 darbinyan 2025-01-14 15:27:33 -0800 inspector/worker/runtime-basic-subworker.html test is flaky crashing in macOS queue and flaky failure in EWS. ASSERTION FAILED: Unsafe to ref/deref from different threads m_isOwnedByMainThread == isMainThread() /Volumes/Data/worker/Apple-Ventura-Debug-Build/build/WebKitBuild/Debug/usr/local/include/wtf/RefCounted.h(119) : void WTF::RefCountedBase::applyRefDerefThreadingCheck() const 1 0x128aa71fc WTF::RefCountedBase::applyRefDerefThreadingCheck() const 2 0x128aa9524 WTF::RefCountedBase::ref() const 3 0x12de88f38 WTF::DefaultRefDerefTraits<WebCore::WorkerInspectorProxy>::ref(WebCore::WorkerInspectorProxy&) 4 0x12de88f08 WTF::Ref<WebCore::WorkerInspectorProxy, WTF::RawPtrTraits<WebCore::WorkerInspectorProxy>, WTF::DefaultRefDerefTraits<WebCore::WorkerInspectorProxy>>::Ref(WebCore::WorkerInspectorProxy&) 5 0x12de83ed4 WTF::Ref<WebCore::WorkerInspectorProxy, WTF::RawPtrTraits<WebCore::WorkerInspectorProxy>, WTF::DefaultRefDerefTraits<WebCore::WorkerInspectorProxy>>::Ref(WebCore::WorkerInspectorProxy&) 6 0x12de8a594 WebCore::WorkerWorkerAgent::connectToAllWorkerInspectorProxies() 7 0x12de68e6c WebCore::InspectorWorkerAgent::enable() 8 0x11fe2dfb0 Inspector::WorkerBackendDispatcher::enable(long, WTF::RefPtr<WTF::JSONImpl::Object, WTF::RawPtrTraits<WTF::JSONImpl::Object>, WTF::DefaultRefDerefTraits<WTF::JSONImpl::Object>>&&) 9 0x11fe2dd44 Inspector::WorkerBackendDispatcher::dispatch(long, WTF::String const&, WTF::Ref<WTF::JSONImpl::Object, WTF::RawPtrTraits<WTF::JSONImpl::Object>, WTF::DefaultRefDerefTraits<WTF::JSONImpl::Object>>&&) 10 0x11fdea38c Inspector::BackendDispatcher::dispatch(WTF::String const&) 11 0x12dd26104 WebCore::WorkerInspectorController::dispatchMessageFromFrontend(WTF::String const&) 12 0x12fbcba18 WebCore::WorkerInspectorProxy::sendMessageToWorkerInspectorController(WTF::String const&)::$_14::operator()(WebCore::ScriptExecutionContext&) const 13 0x12fbcb960 WTF::Detail::CallableWrapper<WebCore::WorkerInspectorProxy::sendMessageToWorkerInspectorController(WTF::String const&)::$_14, void, WebCore::ScriptExecutionContext&>::call(WebCore::ScriptExecutionContext&) 14 0x12b65c934 WTF::Function<void (WebCore::ScriptExecutionContext&)>::operator()(WebCore::ScriptExecutionContext&) const 15 0x12c0926bc WebCore::ScriptExecutionContext::Task::performTask(WebCore::ScriptExecutionContext&) 16 0x12fbe28a4 WebCore::WorkerDedicatedRunLoop::Task::performTask(WebCore::WorkerOrWorkletGlobalScope*) 17 0x12fbe1d6c WebCore::WorkerDedicatedRunLoop::runInMode(WebCore::WorkerOrWorkletGlobalScope*, WebCore::ModePredicate const&) 18 0x12fbe02a4 WebCore::WorkerDedicatedRunLoop::run(WebCore::WorkerOrWorkletGlobalScope*) 19 0x12fbe01d8 WebCore::WorkerOrWorkletThread::runEventLoop() 20 0x12fbe05ec WebCore::WorkerOrWorkletThread::workerOrWorkletThread() 21 0x12fc05b20 WebCore::WorkerThread::createThread()::$_18::operator()() const 22 0x12fc05acc WTF::Detail::CallableWrapper<WebCore::WorkerThread::createThread()::$_18, void>::call() 23 0x11e5be774 WTF::Function<void ()>::operator()() const 24 0x11e701978 WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) 25 0x11e70e184 WTF::wtfThreadEntryPoint(void*) 26 0x19a25ffa8 _pthread_start 27 0x19a25ada0 thread_start Test result: https://build.webkit.org/results/Apple-Sonoma-Debug-WK2-Tests/288693@main%20(3003)/results.html History: https://results.webkit.org/?suite=layout-tests&test=inspector%2Fworker%2Fruntime-basic-subworker.html&style=debug 2087253 1 webkit-bug-importer 2025-01-14 15:27:56 -0800 <rdar://problem/142914104> 2087260 2 ews-feeder 2025-01-14 15:51:41 -0800 Test gardening commit 288899@main (d594f4bd2b9d): <https://commits.webkit.org/288899@main> Reviewed commits have been landed. Closing PR #39032 and removing active labels.