Created attachment 468940 [details] WIP patch

Created attachment 468941 [details] callstack With this WIP patch, a lot of tests are crashing with the following assertion failure. For example, css3/images/cross-fade-invalidation.html ASSERTION FAILED: !m_flushingLayers C:\PSDEV\gb\Source\WebCore\rendering/RenderLayerCompositor.cpp(644) : scheduleRenderingUpdate SVGImage is doing layout during painting.

<rdar://problem/119599110>

Created attachment 469404 [details] WIP Patch

With the WIP patch, running layout tests is observing random crashes due to OpenGL context creataion failures. For example, the following command reproduces the crash. > python .\Tools\Scripts\run-webkit-tests --debug --child=1 --exit-after-n-c=1 --iter=10 fast/dom/lazy-image-loading-document-leak.html > WebCore!WebCore::GLContext::makeContextCurrent(void)+0x18 [C:\WebKit\Source\WebCore\platform\graphics\egl\GLContext.cpp @ 435] > WebKit2!WebKit::WCSceneContext::makeContextCurrent(void)+0x1c [C:\WebKit\Source\WebKit\GPUProcess\graphics\wc\WCSceneContext.cpp @ 45] > WebKit2!WebKit::WCScene::initialize(class WebKit::WCSceneContext * context = 0x000001a3`a72592d0)+0x39 [C:\WebKit\Source\WebKit\GPUProcess\graphics\wc\WCScene.cpp @ 76] > WebKit2!WebKit::RemoteWCLayerTreeHost::RemoteWCLayerTreeHost::<lambda_0>::operator()(void)+0x65 [C:\WebKit\Source\WebKit\GPUProcess\graphics\wc\RemoteWCLayerTreeHost.cpp @ 73] > WebKit2!WTF::Detail::CallableWrapper<`lambda at C:\WebKit\Source\WebKit\GPUProcess\graphics\wc\RemoteWCLayerTreeHost.cpp:69:46',void>::call(void)+0x17 [C:\WebKit\WebKitBuild\Debug\WTF\Headers\wtf\Function.h @ 53] > WebKit2!WTF::Function<void (void)+0x85 [C:\WebKit\WebKitBuild\Debug\WTF\Headers\wtf\Function.h @ 82] > WebKit2!IPC::StreamConnectionWorkQueue::processStreams(void)+0x121 [C:\WebKit\Source\WebKit\Platform\IPC\StreamConnectionWorkQueue.cpp @ 159] > WebKit2!IPC::StreamConnectionWorkQueue::startProcessingThread::<lambda_0>::operator()(void)+0x2f [C:\WebKit\Source\WebKit\Platform\IPC\StreamConnectionWorkQueue.cpp @ 125] > WebKit2!WTF::Detail::CallableWrapper<`lambda at C:\WebKit\Source\WebKit\Platform\IPC\StreamConnectionWorkQueue.cpp:123:17',void>::call(void)+0x17 [C:\WebKit\WebKitBuild\Debug\WTF\Headers\wtf\Function.h @ 53] > WTF!WTF::Function<void (void)+0x84 [C:\WebKit\Source\WTF\wtf\Function.h @ 82] > WTF!WTF::Thread::entryPoint(struct WTF::Thread::NewThreadContext * newThreadContext = 0x000001a3`a723b640)+0x1cb [C:\WebKit\Source\WTF\wtf\Threading.cpp @ 259] > WTF!WTF::wtfThreadEntryPoint(void * data = 0x000001a3`a723b640)+0x13 [C:\WebKit\Source\WTF\wtf\win\ThreadingWin.cpp @ 151] > ucrtbase!thread_start<unsigned int +0x42 > KERNEL32!BaseThreadInitThunk+0x14 > ntdll!RtlUserThreadStart+0x21 The test case opens 10 windows.

See also: Bug 264562 – [GTK] Enable `forceCompositingMode` by default

(In reply to Fujii Hironori from comment #5) > With the WIP patch, running layout tests is observing random crashes due to > OpenGL context creataion failures. I haven't checked yet, but I think 273315@main fixed this problem.

Created attachment 471780 [details] WIP patch

GPU process is still randomly crashing for tests openning a window. > python .\Tools\Scripts\run-webkit-tests --wincairo --debug fast/events/popup-allowed-from-gesture-initiated-event.html --iter=4 Callstack: > libGLESv2!gl::LogMessage::~LogMessage(void)+0x115 [C:\webkit\wc\Source\ThirdParty\ANGLE\src\common\debug.cpp @ 212] > libGLESv2!rx::SurfaceD3D::checkForOutOfDateSwapChain(class rx::DisplayD3D * displayD3D = 0x000001b4`5478c4a0)+0x1b1 [C:\webkit\wc\Source\ThirdParty\ANGLE\src\libANGLE\renderer\d3d\SurfaceD3D.cpp @ 324] > libGLESv2!rx::SurfaceD3D::swapRect(class rx::DisplayD3D * displayD3D = 0x000001b4`5478c4a0, int x = 0n0, int y = 0n0, int width = 0n1200, int height = 0n900)+0x1a1 [C:\webkit\wc\Source\ThirdParty\ANGLE\src\libANGLE\renderer\d3d\SurfaceD3D.cpp @ 307] > libGLESv2!rx::SurfaceD3D::swap(class gl::Context * context = 0x000001b4`63bfb730)+0x76 [C:\webkit\wc\Source\ThirdParty\ANGLE\src\libANGLE\renderer\d3d\SurfaceD3D.cpp @ 356] > libGLESv2!egl::Surface::swap(class gl::Context * context = 0x000001b4`63bfb730)+0x180 [C:\webkit\wc\Source\ThirdParty\ANGLE\src\libANGLE\Surface.cpp @ 337] > libGLESv2!egl::SwapBuffers(class egl::Thread * thread = 0x000001b4`547b4ce0, class egl::Display * display = 0x000001b4`547ba970, struct egl::SurfaceID surfaceID = struct egl::SurfaceID)+0x69 [C:\webkit\wc\Source\ThirdParty\ANGLE\src\libGLESv2\egl_stubs.cpp @ 748] > libGLESv2!EGL_SwapBuffers(void * dpy = 0x000001b4`547ba970, void * surface = 0x00000000`00000002)+0x14c [C:\webkit\wc\Source\ThirdParty\ANGLE\src\libGLESv2\entry_points_egl_autogen.cpp @ 757] > libEGL!eglSwapBuffers(void * dpy = 0x000001b4`547ba970, void * surface = 0x00000000`00000002)+0x23 [C:\webkit\wc\Source\ThirdParty\ANGLE\src\libEGL\libEGL_autogen.cpp @ 216] > WebCore!WebCore::GLContext::swapBuffers(void)+0xb4 [C:\webkit\wc\Source\WebCore\platform\graphics\egl\GLContext.cpp @ 483] > WebKit2!WebKit::WCSceneContext::swapBuffers(void)+0x1c [C:\webkit\wc\Source\WebKit\GPUProcess\graphics\wc\WCSceneContext.cpp @ 58] > WebKit2!WebKit::WCScene::update(struct WebKit::WCUpdateInfo * update = 0x000001b4`639afa10)+0x2157 [C:\webkit\wc\Source\WebKit\GPUProcess\graphics\wc\WCScene.cpp @ 286] > WebKit2!WebKit::RemoteWCLayerTreeHost::update::<lambda_2>::operator()(void)+0x3c [C:\webkit\wc\Source\WebKit\GPUProcess\graphics\wc\RemoteWCLayerTreeHost.cpp @ 103] > WebKit2!WTF::Detail::CallableWrapper<`lambda at C:\webkit\wc\Source\WebKit\GPUProcess\graphics\wc\RemoteWCLayerTreeHost.cpp:101:46',void>::call(void)+0x17 [C:\webkit\wc\WebKitBuild\Debug\WTF\Headers\wtf\Function.h @ 53] > WebKit2!WTF::Function<void (void)+0x90 [C:\webkit\wc\WebKitBuild\Debug\WTF\Headers\wtf\Function.h @ 82] > WebKit2!IPC::StreamConnectionWorkQueue::processStreams(void)+0x121 [C:\webkit\wc\Source\WebKit\Platform\IPC\StreamConnectionWorkQueue.cpp @ 159] > WebKit2!IPC::StreamConnectionWorkQueue::startProcessingThread::<lambda_0>::operator()(void)+0x2f [C:\webkit\wc\Source\WebKit\Platform\IPC\StreamConnectionWorkQueue.cpp @ 125] > WebKit2!WTF::Detail::CallableWrapper<`lambda at C:\webkit\wc\Source\WebKit\Platform\IPC\StreamConnectionWorkQueue.cpp:123:17',void>::call(void)+0x17 [C:\webkit\wc\WebKitBuild\Debug\WTF\Headers\wtf\Function.h @ 53] > WTF!WTF::Function<void (void)+0x8e [C:\webkit\wc\Source\WTF\wtf\Function.h @ 82] > WTF!WTF::Thread::entryPoint(struct WTF::Thread::NewThreadContext * newThreadContext = 0x000001b4`547a3fe0)+0x1f4 [C:\webkit\wc\Source\WTF\wtf\Threading.cpp @ 260] > WTF!WTF::wtfThreadEntryPoint(void * data = 0x000001b4`547a3fe0)+0x13 [C:\webkit\wc\Source\WTF\wtf\win\ThreadingWin.cpp @ 147] > ucrtbase!thread_start<unsigned int +0x93 > KERNEL32!BaseThreadInitThunk+0x1d > ntdll!RtlUserThreadStart+0x28 This crash happens if the GPU process is going to swap buffers after the window closed. GPU process and UI process have to coorparate not to render after the window closed.