Bug 185910

media/video-duration-known-after-eos.html has started crashing in the bots at some point not more recent than r230945. (Shortened) traceback: Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00002ac03b7a2308 in WebKit::CoordinatedBackingStoreTile::setBackBuffer(WebCore::IntRect const&, WebCore::IntRect const&, WTF::RefPtr<Nicosia::Buffer, WTF::DumbPtrTraits<Nicosia::Buffer> >&&, WebCore::IntPoint const&) () from /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37 [Current thread is 1 (Thread 0x2ac0d4774700 (LWP 17536))] Thread 1 (Thread 0x2ac0d4774700 (LWP 17536)): #0 0x00002ac03b7a2308 in WebKit::CoordinatedBackingStoreTile::setBackBuffer(WebCore::IntRect const&, WebCore::IntRect const&, WTF::RefPtr<Nicosia::Buffer, WTF::DumbPtrTraits<Nicosia::Buffer> >&&, WebCore::IntPoint const&) () from /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37 #1 0x00002ac03b7a443d in WebKit::CoordinatedBackingStore::updateTile(unsigned int, WebCore::IntRect const&, WebCore::IntRect const&, WTF::RefPtr<Nicosia::Buffer, WTF::DumbPtrTraits<Nicosia::Buffer> >&&, WebCore::IntPoint const&) () from /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37 #2 0x00002ac03b7a5627 in WebKit::CoordinatedGraphicsScene::updateTilesIfNeeded(WebCore::TextureMapperLayer*, WebCore::CoordinatedGraphicsLayerState const&, WebKit::CoordinatedGraphicsScene::CommitScope&) () from /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37 #3 0x00002ac03b7a673f in WebKit::CoordinatedGraphicsScene::setLayerState(unsigned int, WebCore::CoordinatedGraphicsLayerState const&, WebKit::CoordinatedGraphicsScene::CommitScope&) () from /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37 #4 0x00002ac03b7a6e68 in WebKit::CoordinatedGraphicsScene::commitSceneState(WebCore::CoordinatedGraphicsState const&) () from /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37 #5 0x00002ac03b7a704f in WebKit::CoordinatedGraphicsScene::applyStateChanges(WTF::Vector<WebCore::CoordinatedGraphicsState, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&) () from /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37 #6 0x00002ac03b7ab63a in WebKit::ThreadedCompositor::renderLayerTree() () from /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37 #7 0x00002ac03b7aa3d1 in WebKit::CompositingRunLoop::updateTimerFired() () from /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37 #8 0x00002ac03f9c5133 in WTF::RunLoop::TimerBase::TimerBase(WTF::RunLoop&)::{lambda(void*)#1}::_FUN(void*) () from /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18 #9 0x00002ac04371e81a in g_main_dispatch () at /home/slave/webkitgtk/gtk-linux-64-release-tests/build/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/glib/gmain.c:3148 #10 g_main_context_dispatch () at /home/slave/webkitgtk/gtk-linux-64-release-tests/build/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/glib/gmain.c:3813 #11 0x00002ac04371eba8 in g_main_context_iterate () at /home/slave/webkitgtk/gtk-linux-64-release-tests/build/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/glib/gmain.c:3886 #12 0x00002ac04371eec2 in g_main_loop_run () at /home/slave/webkitgtk/gtk-linux-64-release-tests/build/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/glib/gmain.c:4082 #13 0x00002ac03f9c5550 in WTF::RunLoop::run() () from /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18 #14 0x00002ac03f99138b in WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*) () from /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18 #15 0x00002ac03f9c38f9 in WTF::wtfThreadEntryPoint(void*) () from /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18 #16 0x00002ac04189f494 in start_thread (arg=0x2ac0d4774700) at pthread_create.c:333 #17 0x00002ac0454cd93f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97