The following test misses the condition in the title: <html> <svg style="position: fixed;"></svg> </html> The backtrace: Program received signal SIGSEGV, Segmentation fault. 0x00007ffff5760ba5 in WTFCrash () at /home/reni/Data/REPOS/webkit_sec/Source/WTF/wtf/Assertions.cpp:339 339 *(int *)(uintptr_t)0xbbadbeef = 0; (gdb) bt #0 0x00007ffff5760ba5 in WTFCrash () at /home/reni/Data/REPOS/webkit_sec/Source/WTF/wtf/Assertions.cpp:339 #1 0x00007ffff4c4bd0d in WebCore::RenderSVGRoot::mapLocalToContainer (this=0x8d0f38, repaintContainer=0x0, transformState=..., mode=5, wasFixed=0x0) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/svg/RenderSVGRoot.cpp:420 #2 0x00007ffff49f87f2 in WebCore::RenderObject::localToAbsolute (this=0x8d0f38, localPoint=..., mode=1) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/RenderObject.cpp:2107 #3 0x00007ffff4990e32 in WebCore::accumulateOffsetTowardsAncestor (layer=0x8cdb98, ancestorLayer=0x752fd8, location=...) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/RenderLayer.cpp:1930 #4 0x00007ffff4991269 in WebCore::RenderLayer::convertToLayerCoords (this=0x8cdb98, ancestorLayer=0x752fd8, location=...) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/RenderLayer.cpp:2025 #5 0x00007ffff499a857 in WebCore::RenderLayer::paintLayerContents (this=0x8cdb98, context=0x7fffffffbab0, paintingInfo=..., paintFlags=224) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/RenderLayer.cpp:3865 #6 0x00007ffff4999cfc in WebCore::RenderLayer::paintLayerContentsAndReflection (this=0x8cdb98, context=0x7fffffffbab0, paintingInfo=..., paintFlags=224) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/RenderLayer.cpp:3703 #7 0x00007ffff4999bf2 in WebCore::RenderLayer::paintLayer (this=0x8cdb98, context=0x7fffffffbab0, paintingInfo=..., paintFlags=224) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/RenderLayer.cpp:3685 #8 0x00007ffff499b49f in WebCore::RenderLayer::paintList (this=0x78d128, list=0x8399c0, context=0x7fffffffbab0, paintingInfo=..., paintFlags=224) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/RenderLayer.cpp:4029 #9 0x00007ffff499aecf in WebCore::RenderLayer::paintLayerContents (this=0x78d128, context=0x7fffffffbab0, paintingInfo=..., paintFlags=224) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/RenderLayer.cpp:3954 #10 0x00007ffff4999cfc in WebCore::RenderLayer::paintLayerContentsAndReflection (this=0x78d128, context=0x7fffffffbab0, paintingInfo=..., paintFlags=224) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/RenderLayer.cpp:3703 #11 0x00007ffff4999bf2 in WebCore::RenderLayer::paintLayer (this=0x78d128, context=0x7fffffffbab0, paintingInfo=..., paintFlags=224) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/RenderLayer.cpp:3685 #12 0x00007ffff499b49f in WebCore::RenderLayer::paintList (this=0x752fd8, list=0x731920, context=0x7fffffffbab0, paintingInfo=..., paintFlags=224) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/RenderLayer.cpp:4029 #13 0x00007ffff499aecf in WebCore::RenderLayer::paintLayerContents (this=0x752fd8, context=0x7fffffffbab0, paintingInfo=..., paintFlags=224) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/RenderLayer.cpp:3954 #14 0x00007ffff4999cfc in WebCore::RenderLayer::paintLayerContentsAndReflection (this=0x752fd8, context=0x7fffffffbab0, paintingInfo=..., paintFlags=0) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/RenderLayer.cpp:3703 #15 0x00007ffff4999bf2 in WebCore::RenderLayer::paintLayer (this=0x752fd8, context=0x7fffffffbab0, paintingInfo=..., paintFlags=0) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/RenderLayer.cpp:3685 #16 0x00007ffff4998f04 in WebCore::RenderLayer::paint (this=0x752fd8, context=0x7fffffffbab0, damageRect=..., paintBehavior=0, subtreePaintRoot=0x0, region= 0x0, paintFlags=0) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/rendering/RenderLayer.cpp:3496 #17 0x00007ffff470ae56 in WebCore::FrameView::paintContents (this=0x78a8f0, p=0x7fffffffbab0, rect=...) at /home/reni/Data/REPOS/webkit_sec/Source/WebCore/page/FrameView.cpp:3581 #18 0x00007ffff3c54100 in QWebFrameAdapter::renderRelativeCoords (this=0x7000a0, painter=0x7fffffffbc10, layers=255, clip=...) at /home/reni/Data/REPOS/webkit_sec/Source/WebKit/qt/WebCoreSupport/QWebFrameAdapter.cpp:537 #19 0x00007ffff7baac00 in QWebFrame::render (this=0x6fb330, painter=0x7fffffffbc10, layer=..., clip=...) at /home/reni/Data/REPOS/webkit_sec/Source/WebKit/qt/WidgetApi/qwebframe.cpp:644 #20 0x00007ffff7baacd0 in QWebFrame::render (this=0x6fb330, painter=0x7fffffffbc10, clip=...) at /home/reni/Data/REPOS/webkit_sec/Source/WebKit/qt/WidgetApi/qwebframe.cpp:654 #21 0x00007ffff7bb987e in QWebView::paintEvent (this=0x779b00, ev=0x7fffffffc3f0) at /home/reni/Data/REPOS/webkit_sec/Source/WebKit/qt/WidgetApi/qwebview.cpp:829 #22 0x00007ffff3118848 in QWidget::event(QEvent*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Widgets.so.5 #23 0x00007ffff7bb9627 in QWebView::event (this=0x779b00, e=0x7fffffffc3f0) at /home/reni/Data/REPOS/webkit_sec/Source/WebKit/qt/WidgetApi/qwebview.cpp:733 #24 0x00007ffff30e1dbc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Widgets.so.5 #25 0x00007ffff30e5075 in QApplication::notify(QObject*, QEvent*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Widgets.so.5 #26 0x00007ffff2275dbe in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Core.so.5 #27 0x00007ffff3115705 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Widgets.so.5 #28 0x00007ffff311617b in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Widgets.so.5 ---Type <return> to continue, or q <return> to quit--- #29 0x00007ffff3115256 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Widgets.so.5 #30 0x00007ffff311617b in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Widgets.so.5 #31 0x00007ffff3115fd1 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Widgets.so.5 #32 0x00007ffff3115fd1 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Widgets.so.5 #33 0x00007ffff3115256 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Widgets.so.5 #34 0x00007ffff30eb09f in ?? () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Widgets.so.5 #35 0x00007ffff30eb839 in ?? () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Widgets.so.5 #36 0x00007ffff3136bc3 in ?? () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Widgets.so.5 #37 0x00007ffff30e1dbc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Widgets.so.5 #38 0x00007ffff30e5075 in QApplication::notify(QObject*, QEvent*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Widgets.so.5 #39 0x00007ffff2275dbe in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Core.so.5 #40 0x00007ffff274c3a7 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Gui.so.5 #41 0x00007ffff275353d in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Gui.so.5 #42 0x00007ffff2742a68 in QWindowSystemInterface::sendWindowSystemEventsImplementation(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Gui.so.5 #43 0x00007fffe81506b0 in ?? () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/plugins/platforms/libxcb.so #44 0x00007fffee40bf05 in g_main_dispatch (context=0x6632f0) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3054 #45 g_main_context_dispatch (context=context@entry=0x6632f0) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3630 #46 0x00007fffee40c248 in g_main_context_iterate (context=context@entry=0x6632f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3701 #47 0x00007fffee40c304 in g_main_context_iteration (context=0x6632f0, may_block=1) at /build/buildd/glib2.0-2.36.0/./glib/gmain.c:3762 #48 0x00007ffff22bd4bc in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Core.so.5 #49 0x00007ffff2274d3b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Core.so.5 #50 0x00007ffff2278120 in QCoreApplication::exec() () from /usr/local/Trolltech/Qt5/Qt-5.0.0-r40/lib/libQt5Core.so.5 #51 0x0000000000421ba0 in launcherMain (app=...) at /home/reni/Data/REPOS/webkit_sec/Tools/QtTestBrowser/qttestbrowser.cpp:49 #52 0x0000000000423680 in main (argc=2, argv=0x7fffffffdc68) at /home/reni/Data/REPOS/webkit_sec/Tools/QtTestBrowser/qttestbrowser.cpp:318
Forward duping to a bug with more discussion already on it. *** This bug has been marked as a duplicate of bug 120903 ***