[Webkit-unassigned] [Bug 240820] New: [WinCairo WK1] editing/pasteboard/files-during-page-drags.html is randomly failing as "ASSERTION FAILED: ::IsWindow(m_runLoopMessageWindow)"

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=240820

            Bug ID: 240820
           Summary: [WinCairo WK1]
                    editing/pasteboard/files-during-page-drags.html is
                    randomly failing as "ASSERTION FAILED:
                    ::IsWindow(m_runLoopMessageWindow)"
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com

[WinCairo WK1] editing/pasteboard/files-during-page-drags.html is randomly failing as "ASSERTION FAILED: ::IsWindow(m_runLoopMessageWindow)"

ASSERTION FAILED: ::IsWindow(m_runLoopMessageWindow)
C:\BW\WinCairo-64-bit-WKL-Debug-Build\build\Source\WTF\wtf\win\RunLoopWin.cpp(118) : WTF::RunLoop::RunLoop
1   00007FF8F7F123CB WTFCrash
2   00007FF8F7F179BD WTFCrashWithInfo
3   00007FF8F809EC0F WTF::RunLoop::RunLoop
4   00007FF8F7FB90EB WTF::RunLoop::Holder::Holder
5   00007FF8F7FB904C WTF::ThreadSpecific<WTF::RunLoop::Holder,0>::Data::Data
6   00007FF8F7FBB417 WTF::ThreadSpecific<WTF::RunLoop::Holder,0>::set
7   00007FF8F7FB9622 WTF::ThreadSpecific<WTF::RunLoop::Holder,0>::operator WTF::RunLoop::Holder *
8   00007FF8F7FB96C4 WTF::ThreadSpecific<WTF::RunLoop::Holder,0>::operator->
9   00007FF8F7FB7403 WTF::RunLoop::current
10  00007FF8F809137F `WTF::WorkQueueBase::platformInitialize'::`2'::<lambda_1>::operator()
11  00007FF8F809172B WTF::Detail::CallableWrapper<`WTF::WorkQueueBase::platformInitialize'::`2'::<lambda_1>,void>::call
12  00007FF8F7F29EC3 WTF::Function<void __cdecl(void)>::operator()
13  00007FF8F7FC6798 WTF::Thread::entryPoint
14  00007FF8F80A0964 WTF::wtfThreadEntryPoint
15  00007FF9064B1FFA o_exp
16  00007FF9083E7974 BaseThreadInitThunk
17  00007FF9247AA271 RtlUserThreadStart


249978 at main is the first crash of WinCairo-64-bit-WKL-Release-Tests.
https://build.webkit.org/#/builders/60/builds/6429

249979 at main is the first crash of WinCairo-64-bit-WKL-Debug-Tests.
https://build.webkit.org/#/builders/32/builds/2248

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