247584 2022-11-07 13:24:28 -0800 [MSVC] ASSERTION FAILED: m_wrapper in WebCore::JSEventListener::ensureJSFunction for fast/workers/worker-gc.html 2022-11-14 21:46:25 -0800 1 1 1 Unclassified WebKit Bindings WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 fujii fujii cdumez darin don.olmstead esprehn+autocc ews-watchlist kangil.han ross.kirsling webkit-bug-importer oldest_to_newest 1910863 0 fujii 2022-11-07 13:24:28 -0800 [WinCairo] ASSERTION FAILED: m_wrapper in WebCore::JSEventListener::ensureJSFunction for fast/workers/worker-gc.html WinCairo Debug WK1 and WK2 is reporting an assertion failure for the following tests. fast/workers/worker-init.html fast/workers/worker-gc.html stderr: ASSERTION FAILED: m_wrapper C:\home\webkit\gb\Source\WebCore\bindings\js\JSEventListener.h(157) : WebCore::JSEventListener::ensureJSFunction 1 00007FFD3C60248B WTFCrash 2 00007FFCD3BBCE7E WTFCrashWithInfo 3 00007FFCD6276227 WebCore::JSEventListener::ensureJSFunction 4 00007FFCD625EAAA WebCore::JSEventListener::handleEvent 5 00007FFCD6B0A201 WebCore::EventTarget::innerInvokeEventListeners 6 00007FFCD6B09AEB WebCore::EventTarget::fireEventListeners 7 00007FFCD6B0938C WebCore::EventTarget::dispatchEvent 8 00007FFCD8765B5F WebCore::Worker::dispatchEvent 9 00007FFCD8773ACF ``WebCore::WorkerMessagingProxy::postMessageToWorkerObject'::`2'::<lambda_1>::operator()<WebCore::ScriptExecutionContext>'::`2'::<lambda_1>::operator() 10 00007FFCD8773E3B WTF::Detail::CallableWrapper<``WebCore::WorkerMessagingProxy::postMessageToWorkerObject'::`2'::<lambda_1>::operator()<WebCore::ScriptExecutionContext>'::`2'::<lambda_1>,void>::call 11 00007FFCD3BC9E34 WTF::Function<void __cdecl(void)>::operator() 12 00007FFCD879366B `WebCore::ActiveDOMObject::queueTaskKeepingObjectAlive<WebCore::Worker>'::`2'::<lambda_1>::operator() 13 00007FFCD879519B WTF::Detail::CallableWrapper<`WebCore::ActiveDOMObject::queueTaskKeepingObjectAlive<WebCore::Worker>'::`2'::<lambda_1>,void>::call 14 00007FFCD3BC9E34 WTF::Function<void __cdecl(void)>::operator() 15 00007FFCD6B3559B WebCore::EventLoopFunctionDispatchTask::execute 16 00007FFCD6B121DE WebCore::EventLoop::run 17 00007FFCD6C7B4D8 WebCore::WindowEventLoop::didReachTimeToRun 18 00007FFCD6C91C4A std::invoke<void (__cdecl WebCore::WindowEventLoop::*&)(void),WebCore::WindowEventLoop * &> 19 00007FFCD6C8ACBE std::_Invoker_ret<std::_Unforced>::_Call<void (__cdecl WebCore::WindowEventLoop::*&)(void),WebCore::WindowEventLoop * &> 20 00007FFCD6C8AD21 std::_Call_binder<std::_Unforced,0,void (__cdecl WebCore::WindowEventLoop::*)(void),std::tuple<WebCore::WindowEventLoop *>,std::tuple<> > 21 00007FFCD6C8A95B std::_Binder<std::_Unforced,void (__cdecl WebCore::WindowEventLoop::*&)(void),WebCore::WindowEventLoop *>::operator()<> 22 00007FFCD6C9A7AB WTF::Detail::CallableWrapper<std::_Binder<std::_Unforced,void (__cdecl WebCore::WindowEventLoop::*&)(void),WebCore::WindowEventLoop *>,void>::call 23 00007FFCD3BC9E34 WTF::Function<void __cdecl(void)>::operator() 24 00007FFCD3BCAD3B WebCore::Timer::fired 25 00007FFCD7A0E2C8 WebCore::ThreadTimers::sharedTimerFiredInternal 26 00007FFCD7A0FC3F `WebCore::ThreadTimers::setSharedTimer'::`8'::<lambda_1>::operator() 27 00007FFCD7A1650B WTF::Detail::CallableWrapper<`WebCore::ThreadTimers::setSharedTimer'::`8'::<lambda_1>,void>::call 28 00007FFCD3BC9E34 WTF::Function<void __cdecl(void)>::operator() 29 00007FFCD79ABD87 WebCore::MainThreadSharedTimer::fired 30 00007FFCD411082A WebCore::TimerWindowWndProc 31 00007FFD7EEDE858 CallWindowProcW 1910864 1 cdumez 2022-11-07 13:28:29 -0800 Do we have a regression point? 1910867 2 fujii 2022-11-07 13:50:14 -0800 This isn't a recent regression. The tests has been skipped for WinCairo since 2018 (200180@main). 1910868 3 fujii 2022-11-07 13:51:52 -0800 Bug 194596 – [ Mac Debug ] ASSERTION FAILED: Layout Test performance-api/performance-observer-basic.html is a flaky crash It looks like a similar problem. 1910876 4 fujii 2022-11-07 14:05:17 -0800 Both tests started flaky failures for WinCairo Release since 255605@main. https://results.webkit.org/?suite=layout-tests&suite=layout-tests&test=fast%2Fworkers%2Fworker-gc.html&test=fast%2Fworkers%2Fworker-init.html&platform=wincairo This can be a recent regression or just a race condition depending on the bot machine condition. 1910974 5 463454 fujii 2022-11-07 23:58:58 -0800 Created attachment 463454 WIP patch I don't know why this patch fixes the bug. Compiler bug? 1911750 6 463489 fujii 2022-11-10 23:28:53 -0800 Created attachment 463489 repro.cpp 1911755 7 fujii 2022-11-10 23:56:02 -0800 Reported the bug to MSVC team. -std:c++20 switch generates a wrong program for code with a template and a generic lambda capture https://developercommunity.visualstudio.com/t/-std:c20-switch-generates-a-wrong-prog/10198407 1912175 8 463513 fujii 2022-11-13 21:15:53 -0800 Created attachment 463513 Patch 1912392 9 463513 fujii 2022-11-14 12:08:34 -0800 Comment on attachment 463513 Patch Thank you for the review. 1912407 10 ews-feeder 2022-11-14 12:41:38 -0800 Committed 256669@main (1c7ad9614acd): <https://commits.webkit.org/256669@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 463513. 1912408 11 webkit-bug-importer 2022-11-14 12:42:19 -0800 <rdar://problem/102333724> 1912480 12 463513 darin 2022-11-14 17:54:24 -0800 Comment on attachment 463513 Patch Something that occurred to me after the fact is that we usually leave comments behind so that someone doesn’t just change the code back without realizing there’s a special consideration because of the MSVC bug. 1912504 13 fujii 2022-11-14 18:40:19 -0800 Reopening to attach new patch. 1912506 14 463525 fujii 2022-11-14 18:40:30 -0800 Created attachment 463525 Patch 1912520 15 ews-feeder 2022-11-14 20:22:44 -0800 Committed 256684@main (d5130c84e256): <https://commits.webkit.org/256684@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 463525. 463454 2022-11-07 23:58:58 -0800 2022-11-13 21:15:38 -0800 WIP patch wip.patch text/plain 804 fujii ZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJDb3JlL2RvbS9BY3RpdmVET01PYmplY3QuaCBiL1NvdXJj ZS9XZWJDb3JlL2RvbS9BY3RpdmVET01PYmplY3QuaAppbmRleCAwZTc5NGEyYTA2MDkuLmYyY2Jh ZjdmNWUzYSAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvZG9tL0FjdGl2ZURPTU9iamVjdC5o CisrKyBiL1NvdXJjZS9XZWJDb3JlL2RvbS9BY3RpdmVET01PYmplY3QuaApAQCAtMTA2LDcgKzEw Niw4IEBAIHB1YmxpYzoKICAgICB0ZW1wbGF0ZTx0eXBlbmFtZSBUPgogICAgIHN0YXRpYyB2b2lk IHF1ZXVlVGFza0tlZXBpbmdPYmplY3RBbGl2ZShUJiBvYmplY3QsIFRhc2tTb3VyY2Ugc291cmNl LCBGdW5jdGlvbjx2b2lkICgpPiYmIHRhc2spCiAgICAgewotICAgICAgICBvYmplY3QucXVldWVU YXNrSW5FdmVudExvb3Aoc291cmNlLCBbcHJvdGVjdGVkT2JqZWN0ID0gUmVmIHsgb2JqZWN0IH0s IGFjdGl2aXR5ID0gb2JqZWN0LkFjdGl2ZURPTU9iamVjdDo6bWFrZVBlbmRpbmdBY3Rpdml0eShv YmplY3QpLCB0YXNrID0gV1RGTW92ZSh0YXNrKV0gKCkgeworICAgICAgICBhdXRvIGFjdGl2aXR5 ID0gb2JqZWN0LkFjdGl2ZURPTU9iamVjdDo6bWFrZVBlbmRpbmdBY3Rpdml0eShvYmplY3QpOwor 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