Application: kwin (4.7.2 (4.7.2) "release 5")
KDE Platform Version: 4.7.2 (4.7.2) "release 5"
Qt Version: 4.7.4
Operating System: Linux 3.1.9-1.4-desktop i686
Distribution: "openSUSE 12.1 (i586)"

-- Information about the crash:
- What I was doing when the application crashed:

I was viewing a movie with vlc and, after pause it, I tried to minimize vlc, then kwin crash.

The crash can be reproduced some of the time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb1eefb50 (LWP 5315))]

Thread 2 (Thread 0xaff0ab70 (LWP 5328)):
#0  0xb628d782 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0xb76b83ac in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libc.so.6
#2  0xb6d1d4f9 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xb6e1c7a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#3  0xb6d1d53f in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xb6e1c7a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#4  0xb6289a7d in start_thread () from /lib/libpthread.so.0
#5  0xb76aa89e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb1eefb50 (LWP 5315)):
[KCrash Handler]
#6  QGraphicsItemPrivate::invalidateParentGraphicsEffectsRecursively (this=0x1) at graphicsview/qgraphicsitem.cpp:5379
#7  0xb5f822e3 in update (rect=..., this=0x85e1f00) at graphicsview/qgraphicsitem.cpp:5688
#8  QGraphicsItem::update (this=0x85e1f00, rect=...) at graphicsview/qgraphicsitem.cpp:5681
#9  0xb0558325 in Aurorae::AuroraeButton::mouseReleaseEvent (this=0x85e1ef8, event=0xbfa25888) at /usr/src/debug/kde-workspace-4.7.2/kwin/clients/aurorae/src/lib/auroraebutton.cpp:192
#10 0xb5f7f25f in QGraphicsItem::sceneEvent (this=0x85e1f00, event=0xbfa25888) at graphicsview/qgraphicsitem.cpp:6730
#11 0xb5fdc796 in QGraphicsWidget::sceneEvent (this=0x85e1ef8, event=0xbfa25888) at graphicsview/qgraphicswidget.cpp:1223
#12 0xb5fa8a2e in sendEvent (event=0xbfa25888, item=0x85e1f00, this=<optimized out>) at graphicsview/qgraphicsscene.cpp:1205
#13 QGraphicsScenePrivate::sendEvent (this=0x8599558, item=0x85e1f00, event=0xbfa25888) at graphicsview/qgraphicsscene.cpp:1181
#14 0xb5fa965b in QGraphicsScenePrivate::sendMouseEvent (this=0x8599558, mouseEvent=0xbfa25888) at graphicsview/qgraphicsscene.cpp:1279
#15 0xb5faa077 in QGraphicsScene::mouseReleaseEvent (this=0x84903f8, mouseEvent=0xbfa25888) at graphicsview/qgraphicsscene.cpp:4109
#16 0xb055e882 in Aurorae::AuroraeScene::mouseReleaseEvent (this=0x84903f8, event=0xbfa25888) at /usr/src/debug/kde-workspace-4.7.2/kwin/clients/aurorae/src/lib/auroraescene.cpp:946
#17 0xb5fb886c in QGraphicsScene::event (this=0x84903f8, event=0xbfa25888) at graphicsview/qgraphicsscene.cpp:3441
#18 0xb591cf24 in notify_helper (e=0xbfa25888, receiver=0x84903f8, this=0x8080268) at kernel/qapplication.cpp:4481
#19 QApplicationPrivate::notify_helper (this=0x8080268, receiver=0x84903f8, e=0xbfa25888) at kernel/qapplication.cpp:4453
#20 0xb59222b2 in QApplication::notify (this=0xbfa25888, receiver=0x84903f8, e=0xbfa25888) at kernel/qapplication.cpp:4228
#21 0xb7382681 in KApplication::notify (this=0xbfa266c0, receiver=0x84903f8, event=0xbfa25888) at /usr/src/debug/kdelibs-4.7.2/kdeui/kernel/kapplication.cpp:311
#22 0xb779190f in notify (e=0xbfa25888, o=0x84903f8, this=0xbfa266c0) at /usr/src/debug/kde-workspace-4.7.2/kwin/main.cpp:366
#23 KWin::Application::notify (this=0xbfa266c0, o=0x84903f8, e=0xbfa25888) at /usr/src/debug/kde-workspace-4.7.2/kwin/main.cpp:362
#24 0xb640043e in QCoreApplication::notifyInternal (this=0xbfa266c0, receiver=0x84903f8, event=0xbfa25888) at kernel/qcoreapplication.cpp:787
#25 0xb591b01d in sendSpontaneousEvent (event=0xbfa25888, receiver=0x84903f8) at ../../src/corelib/kernel/qcoreapplication.h:218
#26 qt_sendSpontaneousEvent (receiver=0x84903f8, event=0xbfa25888) at kernel/qapplication.cpp:5475
#27 0xb5fd76c8 in QGraphicsView::mouseReleaseEvent (this=0x83f6a90, event=0xbfa25fc4) at graphicsview/qgraphicsview.cpp:3336
#28 0xb597732f in QWidget::event (this=0x83f6a90, event=0xbfa25fc4) at kernel/qwidget.cpp:8295
#29 0xb5d7c6e5 in QFrame::event (this=0x83f6a90, e=0xbfa25fc4) at widgets/qframe.cpp:557
#30 0xb5e0ead1 in QAbstractScrollArea::viewportEvent (this=0x83f6a90, e=0xbfa25fc4) at widgets/qabstractscrollarea.cpp:1043
#31 0xb5fdac4c in QGraphicsView::viewportEvent (this=0x83f6a90, event=0xbfa25fc4) at graphicsview/qgraphicsview.cpp:2864
#32 0xb5e11256 in viewportEvent (this=<optimized out>, event=0xbfa25fc4) at widgets/qabstractscrollarea_p.h:100
#33 eventFilter (e=0xbfa25fc4, this=<optimized out>, o=<optimized out>) at widgets/qabstractscrollarea_p.h:116
#34 QAbstractScrollAreaFilter::eventFilter (this=0x81e65a0, o=0x8508008, e=0xbfa25fc4) at widgets/qabstractscrollarea_p.h:115
#35 0xb64005d6 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x8080268, receiver=0x8508008, event=0xbfa25fc4) at kernel/qcoreapplication.cpp:902
#36 0xb591cef2 in notify_helper (e=0xbfa25fc4, receiver=0x8508008, this=0x8080268) at kernel/qapplication.cpp:4477
#37 QApplicationPrivate::notify_helper (this=0x8080268, receiver=0x8508008, e=0xbfa25fc4) at kernel/qapplication.cpp:4453
#38 0xb5922d3b in QApplication::notify (this=0x8080268, receiver=0x8508008, e=0xbfa25fc4) at kernel/qapplication.cpp:4042
#39 0xb7382681 in KApplication::notify (this=0xbfa266c0, receiver=0x8508008, event=0xbfa25fc4) at /usr/src/debug/kdelibs-4.7.2/kdeui/kernel/kapplication.cpp:311
#40 0xb779190f in notify (e=0xbfa25fc4, o=0x8508008, this=0xbfa266c0) at /usr/src/debug/kde-workspace-4.7.2/kwin/main.cpp:366
#41 KWin::Application::notify (this=0xbfa266c0, o=0x8508008, e=0xbfa25fc4) at /usr/src/debug/kde-workspace-4.7.2/kwin/main.cpp:362
#42 0xb640043e in QCoreApplication::notifyInternal (this=0xbfa266c0, receiver=0x8508008, event=0xbfa25fc4) at kernel/qcoreapplication.cpp:787
#43 0xb591dee0 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:215
#44 QApplicationPrivate::sendMouseEvent (receiver=0x8508008, event=0xbfa25fc4, alienWidget=0x0, nativeWidget=0x8508008, buttonDown=0xb627fc34, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3141
#45 0xb59a7244 in QETWidget::translateMouseEvent (this=0x8508008, event=0xbfa2647c) at kernel/qapplication_x11.cpp:4475
#46 0xb59a5e1e in QApplication::x11ProcessEvent (this=0xbfa266c0, event=0xbfa2647c) at kernel/qapplication_x11.cpp:3601
#47 0xb59d1b18 in QEventDispatcherX11::processEvents (this=0x804e560, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#48 0xb63ff45d in QEventLoop::processEvents (this=0xbfa26604, flags=...) at kernel/qeventloop.cpp:149
#49 0xb63ff6a1 in QEventLoop::exec (this=0xbfa26604, flags=...) at kernel/qeventloop.cpp:201
#50 0xb6403dfa in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#51 0xb591ada4 in QApplication::exec () at kernel/qapplication.cpp:3755
#52 0xb779453d in kdemain (argc=3, argv=0xbfa26924) at /usr/src/debug/kde-workspace-4.7.2/kwin/main.cpp:517
#53 0x0804852b in main (argc=3, argv=0xbfa26924) at /usr/src/debug/kde-workspace-4.7.2/build/kwin/kwin_dummy.cpp:3

Possible duplicates by query: bug 291460, bug 288168, bug 284028, bug 280704, bug 279319.

Reported using DrKonqi