[Webkit-unassigned] [Bug 255624] REGRESSION: [Win] GPUProcess is randomly crasing for some WebGL tests: RELEASE_ASSERT(::IsWindow(m_runLoopMessageWindow))

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=255624

--- Comment #2 from Fujii Hironori <Hironori.Fujii at sony.com> ---
WinCairo-64-bit-Debug-Tests is also crashing.
263077 at main
https://build.webkit.org/#/builders/727/builds/20138

ASSERTION FAILED: ::IsWindow(m_runLoopMessageWindow)
C:\BW\WinCairo-64-bit-Debug-Build\build\Source\WTF\wtf\win\RunLoopWin.cpp(109) : WTF::RunLoop::RunLoop
1   00007FFC154B249B WTFCrash
2   00007FFC154B76BD WTFCrashWithInfo
3   00007FFC1564B57F WTF::RunLoop::RunLoop
4   00007FFC15562C3B WTF::RunLoop::Holder::Holder
5   00007FFC15562B8C WTF::ThreadSpecific<WTF::RunLoop::Holder,0>::Data::Data
6   00007FFC155654A7 WTF::ThreadSpecific<WTF::RunLoop::Holder,0>::set
7   00007FFC155632A2 WTF::ThreadSpecific<WTF::RunLoop::Holder,0>::operator WTF::RunLoop::Holder *
8   00007FFC155633C4 WTF::ThreadSpecific<WTF::RunLoop::Holder,0>::operator->
9   00007FFC15560103 WTF::RunLoop::current
10  00007FFC15560A5F `WTF::RunLoop::create'::`2'::<lambda_1>::operator()
11  00007FFC15560CFB WTF::Detail::CallableWrapper<`WTF::RunLoop::create'::`2'::<lambda_1>,void>::call
12  00007FFC154CA4F3 WTF::Function<void __cdecl(void)>::operator()
13  00007FFC1556FE18 WTF::Thread::entryPoint
14  00007FFC1564D314 WTF::wtfThreadEntryPoint
15  00007FFC0A001FFA o_exp
16  00007FFC0B8F7974 BaseThreadInitThunk
17  00007FFC26DAA271 RtlUserThreadStart
ASSERTION FAILED: m_maxTransformFeedbackSeparateAttribs >= 4
C:\BW\WinCairo-64-bit-Debug-Build\build\Source\WebCore\html/canvas/WebGL2RenderingContext.cpp(163) : WebCore::WebGL2RenderingContext::initializeNewContext
1   00007FFC154B249B WTFCrash
2   00007FFBD3E0318E WTFCrashWithInfo
3   00007FFBD6FF9382 WebCore::WebGL2RenderingContext::initializeNewContext
4   00007FFBD6FE431D WebCore::WebGL2RenderingContext::create
5   00007FFBD703270A WebCore::WebGLRenderingContextBase::create
6   00007FFBD6E24B0C WebCore::HTMLCanvasElement::createContextWebGL
7   00007FFBD6E23FDD WebCore::HTMLCanvasElement::getContext
8   00007FFBD49CA1AE WebCore::jsHTMLCanvasElementPrototypeFunction_getContextBody
9   00007FFBD49D3965 WebCore::IDLOperation<WebCore::JSHTMLCanvasElement>::call<&WebCore::jsHTMLCanvasElementPrototypeFunction_getContextBody,0>
10  00007FFBD49C88B5 WebCore::jsHTMLCanvasElementPrototypeFunction_getContext
11  00000264000014DE (null)

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