[Webkit-unassigned] [Bug 116977] [GTK] media/event-attributes.html is flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=116977

--- Comment #3 from Fujii Hironori <Hironori.Fujii at sony.com> ---
I commented out the assertion, and tried again.
> ./Tools/Scripts/run-webkit-tests --gtk --debug -v media/event-attributes.html

Another assertion failure happens.

> STDERR: ASSERTION FAILED: it != m_tiles.end()

Backtrace:

> Thread 1 (Thread 0x7fa2017fa700 (LWP 7488)):
> #0  0x00007fa2d1ba23da in WTFCrash () at ../../Source/WTF/wtf/Assertions.cpp:267
> #1  0x00007fa2df0a655f in WebKit::CoordinatedBackingStore::updateTile (this=0x7fa250cea980, id=12, sourceRect=..., tileRect=..., buffer=..., offset=...) at ../../Source/WebKit/Shared/CoordinatedGraphics/CoordinatedBackingStore.cpp:84
> #2  0x00007fa2df0a8d0a in WebKit::CoordinatedGraphicsScene::updateTilesIfNeeded (this=0x7fa250ce8000, layer=0x7fa250cdeb40, state=..., commitScope=...) at ../../Source/WebKit/Shared/CoordinatedGraphics/CoordinatedGraphicsScene.cpp:358
> #3  0x00007fa2df0a819d in WebKit::CoordinatedGraphicsScene::setLayerState (this=0x7fa250ce8000, id=24, layerState=..., commitScope=...) at ../../Source/WebKit/Shared/CoordinatedGraphics/CoordinatedGraphicsScene.cpp:225
> #4  0x00007fa2df0a9778 in WebKit::CoordinatedGraphicsScene::commitSceneState (this=0x7fa250ce8000, state=...) at ../../Source/WebKit/Shared/CoordinatedGraphics/CoordinatedGraphicsScene.cpp:446
> #5  0x00007fa2df0a751d in WebKit::CoordinatedGraphicsScene::applyStateChanges (this=0x7fa250ce8000, states=...) at ../../Source/WebKit/Shared/CoordinatedGraphics/CoordinatedGraphicsScene.cpp:61
> #6  0x00007fa2df0bedc2 in WebKit::ThreadedCompositor::renderLayerTree (this=0x7fa250ced000) at ../../Source/WebKit/Shared/CoordinatedGraphics/threadedcompositor/ThreadedCompositor.cpp:243
> #7  0x00007fa2df0bddd5 in WebKit::ThreadedCompositor::<lambda()>::operator()(void) const (__closure=0x7fa256a259d8) at ../../Source/WebKit/Shared/CoordinatedGraphics/threadedcompositor/ThreadedCompositor.cpp:57
> #8  0x00007fa2df0c2ba4 in WTF::Function<void()>::CallableWrapper<WebKit::ThreadedCompositor::ThreadedCompositor(WebKit::ThreadedCompositor::Client&, WebKit::WebPage&, const WebCore::IntSize&, float, WebKit::ThreadedCompositor::ShouldDoFrameSync, WebCore::TextureMapper::PaintFlags)::<lambda()> >::call(void) (this=0x7fa256a259d0) at DerivedSources/ForwardingHeaders/wtf/Function.h:101
> #9  0x00007fa2de707d76 in WTF::Function<void ()>::operator()() const (this=0x7fa2bfbdff40) at DerivedSources/ForwardingHeaders/wtf/Function.h:56
> #10 0x00007fa2df0bdd02 in WebKit::CompositingRunLoop::updateTimerFired (this=0x7fa2bfbdff00) at ../../Source/WebKit/Shared/CoordinatedGraphics/threadedcompositor/CompositingRunLoop.cpp:258
> #11 0x00007fa2df0ca968 in WTF::RunLoop::Timer<WebKit::CompositingRunLoop>::fired (this=0x7fa2bfbdff00) at DerivedSources/ForwardingHeaders/wtf/RunLoop.h:148
> #12 0x00007fa2d1c24305 in WTF::RunLoop::TimerBase::<lambda(gpointer)>::operator()(gpointer) const (__closure=0x0, userData=0x7fa2bfbdff00) at ../../Source/WTF/wtf/glib/RunLoopGLib.cpp:170
> #13 0x00007fa2d1c2435d in WTF::RunLoop::TimerBase::<lambda(gpointer)>::_FUN(gpointer) () at ../../Source/WTF/wtf/glib/RunLoopGLib.cpp:176
> #14 0x00007fa2d1c239e4 in WTF::<lambda(GSource*, GSourceFunc, gpointer)>::operator()(GSource *, GSourceFunc, gpointer) const (__closure=0x0, source=0x56486d047c30, callback=0x7fa2d1c24340 <WTF::RunLoop::TimerBase::<lambda(gpointer)>::_FUN(gpointer)>, userData=0x7fa2bfbdff00) at ../../Source/WTF/wtf/glib/RunLoopGLib.cpp:45
> #15 0x00007fa2d1c23a13 in WTF::<lambda(GSource*, GSourceFunc, gpointer)>::_FUN(GSource *, GSourceFunc, gpointer) () at ../../Source/WTF/wtf/glib/RunLoopGLib.cpp:46
> #16 0x00007fa2d37efc55 in g_main_dispatch () at /home/fujii/work/webkit/ga/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/glib/gmain.c:3148
> #17 g_main_context_dispatch () at /home/fujii/work/webkit/ga/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/glib/gmain.c:3813
> #18 0x00007fa2d37f0020 in g_main_context_iterate () at /home/fujii/work/webkit/ga/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/glib/gmain.c:3886
> #19 0x00007fa2d37f0332 in g_main_loop_run () at /home/fujii/work/webkit/ga/WebKitBuild/DependenciesGTK/Source/glib-2.54.2/glib/gmain.c:4082
> #20 0x00007fa2d1c23f41 in WTF::RunLoop::run () at ../../Source/WTF/wtf/glib/RunLoopGLib.cpp:96
> #21 0x00007fa2d1c213f6 in WTF::WorkQueue::<lambda()>::operator()(void) const (__closure=0x7fa250cee338) at ../../Source/WTF/wtf/generic/WorkQueueGeneric.cpp:43
> #22 0x00007fa2d1c23422 in WTF::Function<void()>::CallableWrapper<WTF::WorkQueue::platformInitialize(char const*, WTF::WorkQueue::Type, WTF::WorkQueue::QOS)::<lambda()> >::call(void) (this=0x7fa250cee330) at ../../Source/WTF/wtf/Function.h:101
> #23 0x00007fa2de707d76 in WTF::Function<void ()>::operator()() const (this=0x7fa2017f9b30) at DerivedSources/ForwardingHeaders/wtf/Function.h:56
> #24 0x00007fa2d1bd64a7 in WTF::Thread::entryPoint (newThreadContext=0x7fa256a58820) at ../../Source/WTF/wtf/Threading.cpp:136
> #25 0x00007fa2d1c1fcd5 in WTF::wtfThreadEntryPoint (context=0x7fa256a58820) at ../../Source/WTF/wtf/ThreadingPthreads.cpp:223
> #26 0x00007fa2ce5986db in start_thread (arg=0x7fa2017fa700) at pthread_create.c:463
> #27 0x00007fa2d5e2488f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

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