[Webkit-unassigned] [Bug 214412] REGRESSION [ macOS ] fullscreen/video-controls-rtl.html is a flaky failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=214412

--- Comment #4 from Hector Lopez <hector_i_lopez at apple.com> ---
This test is also crashing consistently on macOS gpuprocess. 
Assertion failed: m_stack.isEmpty WebCore::GraphicsContext::restore()

Crash log:
No crash log found for GPUProcess:88375.

stdout:

stderr:
ERROR: ERROR void GraphicsContext::restore() stack is empty
./platform/graphics/GraphicsContext.cpp(408) : void WebCore::GraphicsContext::restore()
ASSERTION FAILED: m_stack.isEmpty()
./platform/graphics/GraphicsContext.cpp(375) : WebCore::GraphicsContext::~GraphicsContext()
1   0x13b108329 WTFCrash
2   0x11c29d8eb WTFCrashWithInfo(int, char const*, char const*, int)
3   0x120234ab4 WebCore::GraphicsContext::~GraphicsContext()
4   0x120234bf5 WebCore::GraphicsContext::~GraphicsContext()
5   0x11de3162b std::__1::default_delete<WebCore::GraphicsContext>::operator()(WebCore::GraphicsContext*) const
6   0x11de315af std::__1::unique_ptr<WebCore::GraphicsContext, std::__1::default_delete<WebCore::GraphicsContext> >::reset(WebCore::GraphicsContext*)
7   0x11de31549 std::__1::unique_ptr<WebCore::GraphicsContext, std::__1::default_delete<WebCore::GraphicsContext> >::~unique_ptr()
8   0x11de21385 std::__1::unique_ptr<WebCore::GraphicsContext, std::__1::default_delete<WebCore::GraphicsContext> >::~unique_ptr()
9   0x11de2158a WebCore::IOSurface::~IOSurface()
10  0x11de215b5 WebCore::IOSurface::~IOSurface()
ERROR: ERROR void GraphicsContext::restore() stack is empty
./platform/graphics/GraphicsContext.cpp(408) : void WebCore::GraphicsContext::restore()
11  0x10f0ec9eb std::__1::default_delete<WebCore::IOSurface>::operator()(WebCore::IOSurface*) const
12  0x10f0ec96f std::__1::unique_ptr<WebCore::IOSurface, std::__1::default_delete<WebCore::IOSurface> >::reset(WebCore::IOSurface*)
13  0x10f0ec909 std::__1::unique_ptr<WebCore::IOSurface, std::__1::default_delete<WebCore::IOSurface> >::~unique_ptr()
14  0x10f0d5625 std::__1::unique_ptr<WebCore::IOSurface, std::__1::default_delete<WebCore::IOSurface> >::~unique_ptr()
15  0x10f0e2ee5 WebCore::ImageBufferIOSurfaceBackend::~ImageBufferIOSurfaceBackend()
16  0x10f0e2ea8 WebKit::ImageBufferShareableIOSurfaceBackend::~ImageBufferShareableIOSurfaceBackend()
17  0x10f0e2e55 WebKit::ImageBufferShareableIOSurfaceBackend::~ImageBufferShareableIOSurfaceBackend()
18  0x10f0e2e7c WebKit::ImageBufferShareableIOSurfaceBackend::~ImageBufferShareableIOSurfaceBackend()
19  0x10e1bacbf std::__1::default_delete<WebKit::ImageBufferShareableIOSurfaceBackend>::operator()(WebKit::ImageBufferShareableIOSurfaceBackend*) const
20  0x10e1bac7f std::__1::unique_ptr<WebKit::ImageBufferShareableIOSurfaceBackend, std::__1::default_delete<WebKit::ImageBufferShareableIOSurfaceBackend> >::reset(WebKit::ImageBufferShareableIOSurfaceBackend*)
21  0x10e1bac19 std::__1::unique_ptr<WebKit::ImageBufferShareableIOSurfaceBackend, std::__1::default_delete<WebKit::ImageBufferShareableIOSurfaceBackend> >::~unique_ptr()
22  0x10e1b8b75 std::__1::unique_ptr<WebKit::ImageBufferShareableIOSurfaceBackend, std::__1::default_delete<WebKit::ImageBufferShareableIOSurfaceBackend> >::~unique_ptr()
23  0x10e1ba3a5 WebCore::ConcreteImageBuffer<WebKit::ImageBufferShareableIOSurfaceBackend>::~ConcreteImageBuffer()
24  0x10e1ba544 WebKit::RemoteImageBufferProxy<WebKit::ImageBufferShareableIOSurfaceBackend>::~RemoteImageBufferProxy()
25  0x10e1b8fc5 WebKit::RemoteImageBufferProxy<WebKit::ImageBufferShareableIOSurfaceBackend>::~RemoteImageBufferProxy()
26  0x10e1b8fec WebKit::RemoteImageBufferProxy<WebKit::ImageBufferShareableIOSurfaceBackend>::~RemoteImageBufferProxy()
27  0x10e1b891f std::__1::default_delete<WebKit::RemoteImageBufferMessageHandlerProxy>::operator()(WebKit::RemoteImageBufferMessageHandlerProxy*) const
28  0x10e1b889f std::__1::unique_ptr<WebKit::RemoteImageBufferMessageHandlerProxy, std::__1::default_delete<WebKit::RemoteImageBufferMessageHandlerProxy> >::reset(WebKit::RemoteImageBufferMessageHandlerProxy*)
29  0x10e1b8839 std::__1::unique_ptr<WebKit::RemoteImageBufferMessageHandlerProxy, std::__1::default_delete<WebKit::RemoteImageBufferMessageHandlerProxy> >::~unique_ptr()
30  0x10e1b8815 std::__1::unique_ptr<WebKit::RemoteImageBufferMessageHandlerProxy, std::__1::default_delete<WebKit::RemoteImageBufferMessageHandlerProxy> >::~unique_ptr()
31  0x10e1d1357 WTF::KeyValuePairHashTraits<WTF::HashTraits<WTF::ObjectIdentifier<WebKit::ImageBufferIdentifierType> >, WTF::HashTraits<std::__1::unique_ptr<WebKit::RemoteImageBufferMessageHandlerProxy, std::__1::default_delete<WebKit::RemoteImageBufferMessageHandlerProxy> > > >::customDeleteBucket(WTF::KeyValuePair<WTF::ObjectIdentifier<WebKit::ImageBufferIdentifierType>, std::__1::unique_ptr<WebKit::RemoteImageBufferMessageHandlerProxy, std::__1::default_delete<WebKit::RemoteImageBufferMessageHandlerProxy> > >&)
LEAK: 1 WebPageProxy

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