[Win] WebGL tests are randomly failing an assertion: ASSERTION FAILED: ::IsWindow(m_runLoopMessageWindow) WinCairo Debug is observing random assertion failures for WebGL tests these days. In https://build.webkit.org/results/WinCairo-64-bit-Debug-Tests/262758@main%20(20089)/results.html The log of webgl/2.0.y/conformance/rendering/color-mask-should-not-affect-antialiased-framebuffer-resolution.html contains two assertion failures. ASSERTION FAILED: ::IsWindow(m_runLoopMessageWindow) C:\BW\WinCairo-64-bit-Debug-Build\build\Source\WTF\wtf\win\RunLoopWin.cpp(109) : WTF::RunLoop::RunLoop 1 00007FFC1263249B WTFCrash 2 00007FFC126376BD WTFCrashWithInfo 3 00007FFC127CBBFF WTF::RunLoop::RunLoop 4 00007FFC126E2F2B WTF::RunLoop::Holder::Holder 5 00007FFC126E2E7C WTF::ThreadSpecific<WTF::RunLoop::Holder,0>::Data::Data 6 00007FFC126E5797 WTF::ThreadSpecific<WTF::RunLoop::Holder,0>::set 7 00007FFC126E3592 WTF::ThreadSpecific<WTF::RunLoop::Holder,0>::operator WTF::RunLoop::Holder * 8 00007FFC126E36B4 WTF::ThreadSpecific<WTF::RunLoop::Holder,0>::operator-> 9 00007FFC126E03F3 WTF::RunLoop::current 10 00007FFC126E0D4F `WTF::RunLoop::create'::`2'::<lambda_1>::operator() 11 00007FFC126E0FEB WTF::Detail::CallableWrapper<`WTF::RunLoop::create'::`2'::<lambda_1>,void>::call 12 00007FFC1264A4F3 WTF::Function<void __cdecl(void)>::operator() 13 00007FFC126F0108 WTF::Thread::entryPoint 14 00007FFC127CD994 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 00007FFC1263249B WTFCrash 2 00007FFBB4A9318E WTFCrashWithInfo 3 00007FFBB7C48ED2 WebCore::WebGL2RenderingContext::initializeNewContext 4 00007FFBB7C33DFD WebCore::WebGL2RenderingContext::create 5 00007FFBB7C8232A WebCore::WebGLRenderingContextBase::create 6 00007FFBB7A7359C WebCore::HTMLCanvasElement::createContextWebGL 7 00007FFBB7A72A6D WebCore::HTMLCanvasElement::getContext 8 00007FFBB562956E WebCore::jsHTMLCanvasElementPrototypeFunction_getContextBody 9 00007FFBB5632E25 WebCore::IDLOperation<WebCore::JSHTMLCanvasElement>::call<&WebCore::jsHTMLCanvasElementPrototypeFunction_getContextBody,0> 10 00007FFBB5627C75 WebCore::jsHTMLCanvasElementPrototypeFunction_getContext 11 000002DB800014DE (null) That of webgl/2.0.0/conformance/typedarrays/typed-arrays-in-workers.html contains only "::IsWindow(m_runLoopMessageWindow)".
<rdar://problem/108111129>
WebGL tests are randomly failing thread creation. StreamClientConnection is leaking.
Pull request: https://github.com/WebKit/WebKit/pull/12825
Committed 263065@main (ab6bfe03c7a4): <https://commits.webkit.org/263065@main> Reviewed commits have been landed. Closing PR #12825 and removing active labels.