[Webkit-unassigned] [Bug 210955] [WinCairo] Dead lock in WTF::Thread::didExit() while WebKitNetworkProcess.exe is exiting

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=210955

--- Comment #4 from Fujii Hironori <Hironori.Fujii at sony.com> ---
Created attachment 397651

  --> https://bugs.webkit.org/attachment.cgi?id=397651&action=review

a test program to exit while other thread is locking a Lock

I created a test program that the main thread exits while other thread is locking a Lock.
This program is based on Bug 204192 Comment 26.

> TestWTF.exe --gtest_filter=WTF_Lock.Test1

The deadlock happened with the following callstack.

> ntdll.dll!NtWaitForAlertByThreadId()	Unknown
> ntdll.dll!RtlSleepConditionVariableSRW()	Unknown
> KernelBase.dll!SleepConditionVariableSRW()	Unknown
> WTF.dll!WTF::ThreadCondition::timedWait(WTF::Mutex & mutex={...}, WTF::WallTime absoluteTime={...}) Line 383	C++
> WTF.dll!WTF::ParkingLot::parkConditionallyImpl(const void * address=0x00007ffc1d0d1c28, const WTF::ScopedLambda<bool __cdecl(void)> & validation={...}, const WTF::ScopedLambda<void __cdecl(void)> & beforeSleep={...}, const WTF::TimeWithDynamicClockType & timeout={...}) Line 604	C++
> WTF.dll!WTF::ParkingLot::parkConditionally<bool <lambda>(void),void <lambda>(void)>(const void * address=0x00007ffc1d0d1c28, const WTF::ParkingLot::compareAndPark::__l2::bool <lambda>(void) & validation=bool <lambda>(void){...}, const WTF::ParkingLot::compareAndPark::__l2::void <lambda>(void) & beforeSleep=void <lambda>(void){...}, const WTF::TimeWithDynamicClockType & timeout={...}) Line 82	C++
> WTF.dll!WTF::ParkingLot::compareAndPark<unsigned char,unsigned char>(const WTF::Atomic<unsigned char> * address=0x00007ffc1d0d1c28, unsigned char expected='\x3') Line 94	C++
> WTF.dll!WTF::LockAlgorithm<unsigned char,1,2,WTF::EmptyLockHooks<unsigned char>>::lockSlow(WTF::Atomic<unsigned char> & lock={...}) Line 83	C++
> WTF.dll!WTF::Lock::lockSlow() Line 41	C++
> TestWTFLib.dll!WTF::Lock::lock() Line 60	C++
> TestWTFLib.dll!WTF::Locker<WTF::Lock>::lock() Line 114	C++
> TestWTFLib.dll!WTF::Locker<WTF::Lock>::Locker<WTF::Lock>(WTF::Lock & lockable={...}) Line 55	C++
> TestWTFLib.dll!WTF::holdLock<WTF::Lock>(WTF::Lock & lock={...}) Line 127	C++
> TestWTFLib.dll!`TestWebKitAPI::WTF_Lock_Test1_Test::TestBody'::`2'::ThreadExitCallback::~ThreadExitCallback() Line 206	C++
> TestWTFLib.dll!`TestWebKitAPI::WTF_Lock_Test1_Test::TestBody'::`2'::`dynamic atexit destructor for 'callback''()	C++
> TestWTFLib.dll!__dyn_tls_dtor(void * __formal=0x000000007ffe0385, const unsigned long dwReason, void * __formal) Line 119	C++
> ntdll.dll!LdrpCallInitRoutine()	Unknown
> ntdll.dll!LdrpCallTlsInitializers()	Unknown
> ntdll.dll!LdrShutdownProcess()	Unknown
> ntdll.dll!RtlExitUserProcess()	Unknown
> kernel32.dll!ExitProcessImplementation()	Unknown
> ucrtbase.dll!exit_or_terminate_process()	Unknown
> ucrtbase.dll!common_exit()	Unknown
> TestWTF.exe!__scrt_common_main_seh() Line 295	C++
> kernel32.dll!BaseThreadInitThunk()	Unknown
> ntdll.dll!RtlUserThreadStart()	Unknown

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