Created attachment 265068 [details] Test Load the attached test with debug MiniBrowser: <style> * { position:fixed; -webkit-column-count: +6; overflow:auto; opacity:0.2; } </style> <font> vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv </font> OS: Ubuntu 15.04 x86_64 Checked build: debug EFL Checked version: 009fb33 Backtrace: ASSERTION FAILED: !m_dirty ../../Source/WebCore/platform/graphics/GraphicsLayerTransform.cpp(83) : const WebCore::TransformationMatrix& WebCore::GraphicsLayerTransform::combined() const 1 0x7f6b4f9edf97 WTFCrash 2 0x7f6b57931002 WebCore::GraphicsLayerTransform::combined() const 3 0x7f6b579599f5 WebCore::TextureMapperLayer::computeOverlapRegions(WebCore::Region&, WebCore::Region&, WebCore::TextureMapperLayer::ResolveSelfOverlapMode) 4 0x7f6b57959bd8 WebCore::TextureMapperLayer::computeOverlapRegions(WebCore::Region&, WebCore::Region&, WebCore::TextureMapperLayer::ResolveSelfOverlapMode) 5 0x7f6b57959bd8 WebCore::TextureMapperLayer::computeOverlapRegions(WebCore::Region&, WebCore::Region&, WebCore::TextureMapperLayer::ResolveSelfOverlapMode) 6 0x7f6b57959f79 WebCore::TextureMapperLayer::paintUsingOverlapRegions(WebCore::TextureMapperPaintOptions const&) 7 0x7f6b5795b12d WebCore::TextureMapperLayer::paintRecursive(WebCore::TextureMapperPaintOptions const&) 8 0x7f6b5795907a WebCore::TextureMapperLayer::paintSelfAndChildren(WebCore::TextureMapperPaintOptions const&) 9 0x7f6b579593a8 WebCore::TextureMapperLayer::paintSelfAndChildrenWithReplica(WebCore::TextureMapperPaintOptions const&) 10 0x7f6b5795b10d WebCore::TextureMapperLayer::paintRecursive(WebCore::TextureMapperPaintOptions const&) 11 0x7f6b5795907a WebCore::TextureMapperLayer::paintSelfAndChildren(WebCore::TextureMapperPaintOptions const&) 12 0x7f6b579593a8 WebCore::TextureMapperLayer::paintSelfAndChildrenWithReplica(WebCore::TextureMapperPaintOptions const&) 13 0x7f6b5795b10d WebCore::TextureMapperLayer::paintRecursive(WebCore::TextureMapperPaintOptions const&) 14 0x7f6b5795907a WebCore::TextureMapperLayer::paintSelfAndChildren(WebCore::TextureMapperPaintOptions const&) 15 0x7f6b579593a8 WebCore::TextureMapperLayer::paintSelfAndChildrenWithReplica(WebCore::TextureMapperPaintOptions const&) 16 0x7f6b5795b10d WebCore::TextureMapperLayer::paintRecursive(WebCore::TextureMapperPaintOptions const&) 17 0x7f6b5795907a WebCore::TextureMapperLayer::paintSelfAndChildren(WebCore::TextureMapperPaintOptions const&) 18 0x7f6b579593a8 WebCore::TextureMapperLayer::paintSelfAndChildrenWithReplica(WebCore::TextureMapperPaintOptions const&) 19 0x7f6b5795b10d WebCore::TextureMapperLayer::paintRecursive(WebCore::TextureMapperPaintOptions const&) 20 0x7f6b5795840f WebCore::TextureMapperLayer::paint() 21 0x7f6b56ee46c4 WebKit::CoordinatedGraphicsScene::paintToCurrentGLContext(WebCore::TransformationMatrix const&, float, WebCore::FloatRect const&, WebCore::Color const&, bool, WebCore::FloatPoint const&, unsigned int) 22 0x7f6b56f57704 WebKit::WebView::paintToCurrentGLContext() 23 0x7f6b56f0f906 WKViewPaintToCurrentGLContext 24 0x7f6b56f13a6f EwkView::displayTimerFired() 25 0x7f6b56f211b5 void std::_Mem_fn<void (EwkView::*)()>::operator()<, void>(EwkView*) const 26 0x7f6b56f20d35 void std::_Bind<std::_Mem_fn<void (EwkView::*)()> (EwkView*)>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) 27 0x7f6b56f2065d void std::_Bind<std::_Mem_fn<void (EwkView::*)()> (EwkView*)>::operator()<, void>() 28 0x7f6b56f1f89a std::_Function_handler<void (), std::_Bind<std::_Mem_fn<void (EwkView::*)()> (EwkView*)> >::_M_invoke(std::_Any_data const&) 29 0x7f6b56a14a82 std::function<void ()>::operator()() const 30 0x7f6b56ac129a WebCore::Timer::fired() 31 0x7f6b578b9c39 WebCore::ThreadTimers::sharedTimerFiredInternal() Segmentation fault (core dumped) Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007f2eeecfbf9c in WTFCrash () at ../../Source/WTF/wtf/Assertions.cpp:321 321 *(int *)(uintptr_t)0xbbadbeef = 0; #0 0x00007f2eeecfbf9c in WTFCrash () at ../../Source/WTF/wtf/Assertions.cpp:321 #1 0x00007f2ef6c3f002 in WebCore::GraphicsLayerTransform::combined (this=0x7f2ed6010180) at ../../Source/WebCore/platform/graphics/GraphicsLayerTransform.cpp:83 #2 0x00007f2ef6c679f5 in WebCore::TextureMapperLayer::computeOverlapRegions (this=0x7f2ed6010140, overlapRegion=..., nonOverlapRegion=..., mode=WebCore::TextureMapperLayer::ResolveSelfOverlapIfNeeded) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:277 #3 0x00007f2ef6c67bd8 in WebCore::TextureMapperLayer::computeOverlapRegions (this=0x7f2ed600f740, overlapRegion=..., nonOverlapRegion=..., mode=WebCore::TextureMapperLayer::ResolveSelfOverlapIfNeeded) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:292 #4 0x00007f2ef6c67bd8 in WebCore::TextureMapperLayer::computeOverlapRegions (this=0x7f2ed600fc40, overlapRegion=..., nonOverlapRegion=..., mode=WebCore::TextureMapperLayer::ResolveSelfOverlapAlways) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:292 #5 0x00007f2ef6c67f79 in WebCore::TextureMapperLayer::paintUsingOverlapRegions (this=0x7f2ed600fc40, options=...) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:314 #6 0x00007f2ef6c6912d in WebCore::TextureMapperLayer::paintRecursive (this=0x7f2ed600fc40, options=...) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:437 #7 0x00007f2ef6c6707a in WebCore::TextureMapperLayer::paintSelfAndChildren (this=0x7f2ed600ed40, options=...) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:179 #8 0x00007f2ef6c673a8 in WebCore::TextureMapperLayer::paintSelfAndChildrenWithReplica (this=0x7f2ed600ed40, options=...) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:219 #9 0x00007f2ef6c6910d in WebCore::TextureMapperLayer::paintRecursive (this=0x7f2ed600ed40, options=...) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:433 #10 0x00007f2ef6c6707a in WebCore::TextureMapperLayer::paintSelfAndChildren (this=0x7f2ed600e840, options=...) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:179 #11 0x00007f2ef6c673a8 in WebCore::TextureMapperLayer::paintSelfAndChildrenWithReplica (this=0x7f2ed600e840, options=...) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:219 #12 0x00007f2ef6c6910d in WebCore::TextureMapperLayer::paintRecursive (this=0x7f2ed600e840, options=...) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:433 #13 0x00007f2ef6c6707a in WebCore::TextureMapperLayer::paintSelfAndChildren (this=0x7f2ed600b840, options=...) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:179 #14 0x00007f2ef6c673a8 in WebCore::TextureMapperLayer::paintSelfAndChildrenWithReplica (this=0x7f2ed600b840, options=...) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:219 #15 0x00007f2ef6c6910d in WebCore::TextureMapperLayer::paintRecursive (this=0x7f2ed600b840, options=...) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:433 #16 0x00007f2ef6c6707a in WebCore::TextureMapperLayer::paintSelfAndChildren (this=0x7f2ed600a040, options=...) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:179 #17 0x00007f2ef6c673a8 in WebCore::TextureMapperLayer::paintSelfAndChildrenWithReplica (this=0x7f2ed600a040, options=...) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:219 #18 0x00007f2ef6c6910d in WebCore::TextureMapperLayer::paintRecursive (this=0x7f2ed600a040, options=...) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:433 #19 0x00007f2ef6c6640f in WebCore::TextureMapperLayer::paint (this=0x7f2ed600a040) at ../../Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:84 #20 0x00007f2ef61f26c4 in WebKit::CoordinatedGraphicsScene::paintToCurrentGLContext (this=0x7f2ed62f2000, matrix=..., opacity=1, clipRect=..., backgroundColor=..., drawsBackground=true, contentPosition=..., PaintFlags=0) at ../../Source/WebKit2/Shared/CoordinatedGraphics/CoordinatedGraphicsScene.cpp:107 #21 0x00007f2ef6265704 in WebKit::WebView::paintToCurrentGLContext (this=0x7f2ed62f6000) at ../../Source/WebKit2/UIProcess/CoordinatedGraphics/WebView.cpp:161 #22 0x00007f2ef621d906 in WKViewPaintToCurrentGLContext (viewRef=0x7f2ed62f6000) at ../../Source/WebKit2/UIProcess/API/C/CoordinatedGraphics/WKView.cpp:134 #23 0x00007f2ef6221a6f in EwkView::displayTimerFired (this=0x1b14bc0) at ../../Source/WebKit2/UIProcess/API/efl/EwkView.cpp:582 #24 0x00007f2ef622f1b5 in std::_Mem_fn<void (EwkView::*)()>::operator()<, void>(EwkView*) const (this=0x1b39ed0, __object=0x1b14bc0) at /usr/include/c++/4.9/functional:569 #25 0x00007f2ef622ed35 in std::_Bind<std::_Mem_fn<void (EwkView::*)()> (EwkView*)>::__call<void, , 0ul>(std::tuple<>&&, std::_Index_tuple<0ul>) ( this=0x1b39ed0, __args=<unknown type in webkit/WebKitBuild/Debug/lib/libewebkit2.so.1, CU 0xcebd0a1, DIE 0xcff1926>) at /usr/include/c++/4.9/functional:1264 #26 0x00007f2ef622e65d in std::_Bind<std::_Mem_fn<void (EwkView::*)()> (EwkView*)>::operator()<, void>() (this=0x1b39ed0) at /usr/include/c++/4.9/functional:1323 #27 0x00007f2ef622d89a in std::_Function_handler<void (), std::_Bind<std::_Mem_fn<void (EwkView::*)()> (EwkView*)> >::_M_invoke(std::_Any_data const&) ( __functor=...) at /usr/include/c++/4.9/functional:2039 #28 0x00007f2ef5d22a82 in std::function<void ()>::operator()() const (this=0x1b14d58) at /usr/include/c++/4.9/functional:2439 #29 0x00007f2ef5dcf29a in WebCore::Timer::fired (this=0x1b14d20) at ../../Source/WebCore/platform/Timer.h:133 #30 0x00007f2ef6bc7c39 in WebCore::ThreadTimers::sharedTimerFiredInternal (this=0x7f2ed63fa1b8) at ../../Source/WebCore/platform/ThreadTimers.cpp:121 #31 0x00007f2ef6bc7827 in WebCore::ThreadTimers::<lambda()>::operator()(void) const (__closure=0x13ab620) at ../../Source/WebCore/platform/ThreadTimers.cpp:73 #32 0x00007f2ef6bc7e4a in std::_Function_handler<void(), WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::<lambda()> >::_M_invoke(const std::_Any_data &) (__functor=...) at /usr/include/c++/4.9/functional:2039 #33 0x00007f2ef5d22a82 in std::function<void ()>::operator()() const (this=0x7f2efba969e8 <WebCore::MainThreadSharedTimer::singleton()::instance+8>) at /usr/include/c++/4.9/functional:2439 #34 0x00007f2ef795a675 in WebCore::MainThreadSharedTimer::fired (this=0x7f2efba969e0 <WebCore::MainThreadSharedTimer::singleton()::instance>) at ../../Source/WebCore/platform/MainThreadSharedTimer.cpp:52 #35 0x00007f2ef7b681bc in WebCore::timerEvent () at ../../Source/WebCore/platform/efl/MainThreadSharedTimerEfl.cpp:44 #36 0x00007f2ef122dd1e in _ecore_call_task_cb (data=<optimized out>, func=<optimized out>) at lib/ecore/ecore_private.h:336 #37 _ecore_timer_expired_call (when=894595.41548192897) at lib/ecore/ecore_timer.c:733 #38 0x00007f2ef122de6b in _ecore_timer_expired_timers_call (when=894595.41548192897) at lib/ecore/ecore_timer.c:686 #39 0x00007f2ef1229b41 in _ecore_main_loop_iterate_internal (once_only=once_only@entry=0) at lib/ecore/ecore_main.c:1812 #40 0x00007f2ef1229fc7 in ecore_main_loop_begin () at lib/ecore/ecore_main.c:983 #41 0x000000000040e214 in elm_main (argc=2, argv=0x7ffc32dca9a8) at ../../Tools/MiniBrowser/efl/main.c:2496 #42 0x000000000040e27b in main (argc=2, argv=0x7ffc32dca9a8) at ../../Tools/MiniBrowser/efl/main.c:2500
This does not reproduce under r204037. If you believe there is still a problem, please reopen the bug and attach a revised test case.
Using the attached test case the issue still seems valid in r204165 with debug EFL and GTK builds.
*** Bug 139050 has been marked as a duplicate of this bug. ***
As of 256319@main, I can't reproduce it in both GTK and WPE ports.