I faced this issue in 64 bit debugging build. ./Programs/GtkLauncher http://www.webkit.org/blog-files/3d-transforms/poster-circle.html --enable-accelerated-compositing ASSERTION FAILED: m_needsContext ../../Source/WebCore/platform/gtk/RedirectedXCompositeWindow.cpp(195) : WebCore::GLContext* WebCore::RedirectedXCompositeWindow::context() Segmentation fault (core dumped)
Created attachment 178173 [details] Patch
Comment on attachment 178173 [details] Patch Clearing flags on attachment: 178173 Committed r137020: <http://trac.webkit.org/changeset/137020>
All reviewed patches have been landed. Closing bug.