[Webkit-unassigned] [Bug 39609] New: [Qt] Running with accelerated compositing enabled sometimes result in a crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=39609

           Summary: [Qt] Running with accelerated compositing enabled
                    sometimes result in a crash
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: All
            Status: NEW
          Keywords: Qt
          Severity: Critical
          Priority: P3
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: kenneth at webkit.org


Hovering over the red points on panic.com/transmit is a good way to reproduce the crash

#0  0x00007ffff4fa0734 in QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data (this=0x8) at ../../include/QtCore/../../../qt/src/corelib/tools/qscopedpointer.h:135
#1  0x00007ffff57abd16 in qGetPtrHelper<QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> > > (p=...) at ../../include/QtCore/../../../qt/src/corelib/global/qglobal.h:2337
#2  0x00007ffff57ac408 in QGraphicsScene::d_func (this=0x0) at /home/kenneth/repo/Qt/qt/src/gui/graphicsview/qgraphicsscene.h:297
#3  0x00007ffff57d2d15 in QGraphicsScene::update (this=0x0, rect=...) at /home/kenneth/repo/Qt/qt/src/gui/graphicsview/qgraphicsscene.cpp:3205
#4  0x00007ffff74e451d in WebCore::OpacityAnimationQt::applyFrame(double const&, double const&, double) () from /home/kenneth/repo/Qt/WebKitBuild/Release/bin/../lib/libQtWebKit.so.4
#5  0x00007ffff74e49c5 in WebCore::AnimationQt<double>::updateCurrentTime(int) () from /home/kenneth/repo/Qt/WebKitBuild/Release/bin/../lib/libQtWebKit.so.4
#6  0x00007ffff4861747 in QAbstractAnimation::setCurrentTime (this=0xc55f40, msecs=16) at /home/kenneth/repo/Qt/qt/src/corelib/animation/qabstractanimation.cpp:739
#7  0x00007ffff4860302 in QUnifiedTimer::updateAnimationsTime (this=0x973e80) at /home/kenneth/repo/Qt/qt/src/corelib/animation/qabstractanimation.cpp:223
#8  0x00007ffff4860661 in QUnifiedTimer::timerEvent (this=0x973e80, event=0x7fffffffda10) at /home/kenneth/repo/Qt/qt/src/corelib/animation/qabstractanimation.cpp:279
#9  0x00007ffff49d87a1 in QObject::event (this=0x973e80, e=0x7fffffffda10) at /home/kenneth/repo/Qt/qt/src/corelib/kernel/qobject.cpp:1175
#10 0x00007ffff4fb13f8 in QApplicationPrivate::notify_helper (this=0x7040f0, receiver=0x973e80, e=0x7fffffffda10) at /home/kenneth/repo/Qt/qt/src/gui/kernel/qapplication.cpp:4358
#11 0x00007ffff4fae90f in QApplication::notify (this=0x7fffffffdeb0, receiver=0x973e80, e=0x7fffffffda10) at /home/kenneth/repo/Qt/qt/src/gui/kernel/qapplication.cpp:3762
#12 0x00007ffff49bd3d8 in QCoreApplication::notifyInternal (this=0x7fffffffdeb0, receiver=0x973e80, event=0x7fffffffda10) at /home/kenneth/repo/Qt/qt/src/corelib/kernel/qcoreapplication.cpp:732
#13 0x00007ffff4f9fb85 in QCoreApplication::sendEvent (receiver=0x973e80, event=0x7fffffffda10) at ../../include/QtCore/../../../qt/src/corelib/kernel/qcoreapplication.h:215
#14 0x00007ffff4a0019d in QTimerInfoList::activateTimers (this=0x711980) at /home/kenneth/repo/Qt/qt/src/corelib/kernel/qeventdispatcher_unix.cpp:602
#15 0x00007ffff49fb2ab in timerSourceDispatch (source=0x711920) at /home/kenneth/repo/Qt/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:184
#16 0x00007ffff49fb392 in idleTimerSourceDispatch (source=0x7119e0) at /home/kenneth/repo/Qt/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:231
#17 0x00007ffff2a0f87a in g_main_dispatch (context=0x70fe10) at gmain.c:1960
#18 IA__g_main_context_dispatch (context=0x70fe10) at gmain.c:2513
#19 0x00007ffff2a13208 in g_main_context_iterate (context=0x70fe10, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2591
#20 0x00007ffff2a133cc in IA__g_main_context_iteration (context=0x70fe10, may_block=1) at gmain.c:2654
#21 0x00007ffff49fc743 in QEventDispatcherGlib::processEvents (this=0x70de30, flags=...) at /home/kenneth/repo/Qt/qt/src/corelib/kernel/qeventdispatcher_glib.cpp:412
#22 0x00007ffff509e6f0 in QGuiEventDispatcherGlib::processEvents (this=0x70de30, flags=...) at /home/kenneth/repo/Qt/qt/src/gui/kernel/qguieventdispatcher_glib.cpp:204
#23 0x00007ffff49ba3d0 in QEventLoop::processEvents (this=0x7fffffffdde0, flags=...) at /home/kenneth/repo/Qt/qt/src/corelib/kernel/qeventloop.cpp:149
#24 0x00007ffff49ba526 in QEventLoop::exec (this=0x7fffffffdde0, flags=...) at /home/kenneth/repo/Qt/qt/src/corelib/kernel/qeventloop.cpp:201
#25 0x00007ffff49bdad4 in QCoreApplication::exec () at /home/kenneth/repo/Qt/qt/src/corelib/kernel/qcoreapplication.cpp:1009
#26 0x00007ffff4fae496 in QApplication::exec () at /home/kenneth/repo/Qt/qt/src/gui/kernel/qapplication.cpp:3637

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