Bug 303870

Summary:	REGRESSION(304015@main): Broke CLoop tests
Product:	WebKit	Reporter:	Jonathan Bedard <jbedard>
Component:	New Bugs	Assignee:	Basuke Suzuki <basuke>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
Bug Depends on:
Bug Blocks:	302416

Jonathan Bedard

Reported 2025-12-09 12:48:34 PST

Build: https://build.webkit.org/#/builders/1696/builds/1654 Log: ASSERTION FAILED: m_thread.ptr() == &Thread::currentSingleton() /Volumes/Data/worker/Apple-Tahoe-LLINT-CLoop-BuildAndTest/build/WebKitBuild/Debug/usr/local/include/wtf/SingleThreadIntegralWrapper.h(54) : void WTF::SingleThreadIntegralWrapper<unsigned int>::assertThread() const [IntegralType = unsigned int] 1 0x1057943b0 WTF::SingleThreadIntegralWrapper<unsigned int>::assertThread() const 2 0x105e06a3c WTF::SingleThreadIntegralWrapper<unsigned int>::operator++() 3 0x105e06a14 WTF::CanMakeCheckedPtrBase<WTF::SingleThreadIntegralWrapper<unsigned int>, unsigned int, bool, (WTF::CheckedPtrDeleteCheckException)0>::incrementCheckedPtrCount() const 4 0x105dfaedc Inspector::JSGlobalObjectInspectorController::incrementCheckedPtrCount() const 5 0x1062caf74 WTF::CheckedRef<Inspector::JSGlobalObjectInspectorController, WTF::RawPtrTraits<Inspector::JSGlobalObjectInspectorController>>::CheckedRef(Inspector::JSGlobalObjectInspectorController&) 6 0x1062548c4 WTF::CheckedRef<Inspector::JSGlobalObjectInspectorController, WTF::RawPtrTraits<Inspector::JSGlobalObjectInspectorController>>::CheckedRef(Inspector::JSGlobalObjectInspectorController&) 7 0x106234c7c JSC::JSGlobalObject::checkedInspectorController() const 8 0x1062344fc JSC::JSGlobalObject::~JSGlobalObject() 9 0x106234f74 JSC::JSGlobalObject::~JSGlobalObject() 10 0x106231954 JSC::JSGlobalObject::destroy(JSC::JSCell*) 11 0x105c5d5a8 JSC::IsoHeapCellType::destroy(JSC::VM&, JSC::JSCell*) const 12 0x105cd0e90 JSC::Subspace::destroy(JSC::VM&, JSC::JSCell*) 13 0x105c74c3c JSC::PreciseAllocation::sweep() 14 0x105c746b4 JSC::PreciseAllocation::lastChanceToFinalize() 15 0x105c745ec JSC::MarkedSpace::lastChanceToFinalize() 16 0x105bb3840 JSC::Heap::lastChanceToFinalize() 17 0x1067956e8 JSC::VM::~VM() 18 0x1067964bc JSC::VM::~VM() 19 0x1057a6ae4 WTF::ThreadSafeRefCountedWithSuppressingSaferCPPChecking<JSC::VM, (WTF::DestructionThread)0>::derefSuppressingSaferCPPChecking() const 20 0x1057a6a6c WTF::DefaultRefDerefTraits<JSC::VM>::derefIfNotNull(JSC::VM*) 21 0x105deb7c0 WTF::RefPtr<JSC::VM, WTF::RawPtrTraits<JSC::VM>, WTF::DefaultRefDerefTraits<JSC::VM>>::operator=(std::nullptr_t) 22 0x1062d731c JSC::JSLockHolder::~JSLockHolder() 23 0x1062d73c0 JSC::JSLockHolder::~JSLockHolder() 24 0x10584d118 JSContextGroupRelease 25 0x105786cc4 -[JSVirtualMachine dealloc] 26 0x182cdbc74 AutoreleasePoolPage::releaseUntil(objc_object**) 27 0x182cd8140 objc_autoreleasePoolPop 28 0x182d0ce88 objc_tls_direct_base<AutoreleasePoolPage*, (tls_key)3, AutoreleasePoolPage::HotPageDealloc>::dtor_(void*) 29 0x1831166a4 _pthread_tsd_cleanup 30 0x1831192e8 _pthread_exit 31 0x183118c14 _pthread_start testapi completed with rc=5 (254)

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Radar WebKit Bug Importer

Comment 1 2025-12-09 12:49:02 PST

<rdar://problem/166167124>

Basuke Suzuki

Comment 2 2025-12-10 16:55:19 PST

Pull request: https://github.com/WebKit/WebKit/pull/55211

EWS

Comment 3 2025-12-10 19:11:53 PST

Committed 304274@main (cc456a2f26f6): <https://commits.webkit.org/304274@main> Reviewed commits have been landed. Closing PR #55211 and removing active labels.

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