Application: kwin (4.7.00 (4.7.0))
KDE Platform Version: 4.7.00 (4.7.0)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-11-generic-pae i686
Distribution: Ubuntu 11.04

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

I have desktop effects activated. When I run a movie in VLC it works without problems to go to full screen (alltough layout method changes and some windows randomly maximizes), but when I try to maximize the VLC window, KWin krash. Every time.

I use Kubuntu with the Kubuntu repositories activated. KDE 4.7.0.

The crash can be reproduced every time.

-- Backtrace:
Application: Kwin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb28b7720 (LWP 1718))]

Thread 3 (Thread 0xb053bb70 (LWP 1736)):
#0  0xb7766424 in __kernel_vsyscall ()
#1  0xb759a681 in select () from /lib/i386-linux-gnu/libc.so.6
#2  0xb655638b in qt_safe_select (nfds=14, fdread=0xa412388, fdwrite=0xa41259c, fdexcept=0xa4127b0, orig_timeout=0x0) at kernel/qcore_unix.cpp:82
#3  0xb655a6e9 in QEventDispatcherUNIX::select (this=0xa427cb0, nfds=14, readfds=0xa412388, writefds=0xa41259c, exceptfds=0xa4127b0, timeout=0x0) at kernel/qeventdispatcher_unix.cpp:632
#4  0xb655b66b in QEventDispatcherUNIXPrivate::doSelect (this=0xa412290, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:219
#5  0xb655c326 in QEventDispatcherUNIX::processEvents (this=0xa427cb0, flags=...) at kernel/qeventdispatcher_unix.cpp:919
#6  0xb652b289 in QEventLoop::processEvents (this=0xb053b280, flags=...) at kernel/qeventloop.cpp:149
#7  0xb652b522 in QEventLoop::exec (this=0xb053b280, flags=...) at kernel/qeventloop.cpp:201
#8  0xb64352a0 in QThread::exec (this=0xa410310) at thread/qthread.cpp:492
#9  0xb650cfdb in QInotifyFileSystemWatcherEngine::run (this=0xa410310) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb6437da2 in QThreadPrivate::start (arg=0xa410310) at thread/qthread_unix.cpp:320
#11 0xb38d1e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb75a173e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xafd3ab70 (LWP 1737)):
#0  0xb7766424 in __kernel_vsyscall ()
#1  0xb38d648c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb75af3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb6d20817 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xb6e341c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0xb6d20851 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xb6e341c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0xb38d1e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb75a173e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb28b7720 (LWP 1718)):
[KCrash Handler]
#7  QGraphicsItemPrivate::invalidateParentGraphicsEffectsRecursively (this=0x0) at graphicsview/qgraphicsitem.cpp:5372
#8  0xb60c5a09 in QGraphicsItem::update (this=0xbf7d248, rect=...) at graphicsview/qgraphicsitem.cpp:5679
#9  0xb160299a in Aurorae::AuroraeMaximizeButton::mouseReleaseEvent (this=0xbf7d240, event=0xbfb5cbd8) at ../../../../../kwin/clients/aurorae/src/lib/auroraebutton.cpp:398
#10 0xb60c2004 in QGraphicsItem::sceneEvent (this=0xbf7d248, event=0xbfb5cbd8) at graphicsview/qgraphicsitem.cpp:6721
#11 0xb611d667 in QGraphicsWidget::sceneEvent (this=0xbf7d240, event=0xbfb5cbd8) at graphicsview/qgraphicswidget.cpp:1191
#12 0xb60eb3e0 in QGraphicsScenePrivate::sendEvent (this=0xc05af88, item=0xbf7d248, event=0xbfb5cbd8) at graphicsview/qgraphicsscene.cpp:1207
#13 0xb60ebfd1 in QGraphicsScenePrivate::sendMouseEvent (this=0xc05af88, mouseEvent=0xbfb5cbd8) at graphicsview/qgraphicsscene.cpp:1281
#14 0xb60ec9c4 in QGraphicsScene::mouseReleaseEvent (this=0xb334b88, mouseEvent=0xbfb5cbd8) at graphicsview/qgraphicsscene.cpp:4107
#15 0xb16078fc in Aurorae::AuroraeScene::mouseReleaseEvent (this=0xb334b88, event=0xbfb5cbd8) at ../../../../../kwin/clients/aurorae/src/lib/auroraescene.cpp:946
#16 0xb60fefcc in QGraphicsScene::event (this=0xb334b88, event=0xbfb5cbd8) at graphicsview/qgraphicsscene.cpp:3440
#17 0xb5a83d24 in QApplicationPrivate::notify_helper (this=0x9f73de0, receiver=0xb334b88, e=0xbfb5cbd8) at kernel/qapplication.cpp:4462
#18 0xb5a888ce in QApplication::notify (this=0xbfb5da90, receiver=0xb334b88, e=0xbfb5cbd8) at kernel/qapplication.cpp:3862
#19 0xb72f993a in KApplication::notify (this=0xbfb5da90, receiver=0xb334b88, event=0xbfb5cbd8) at ../../kdeui/kernel/kapplication.cpp:311
#20 0xb769493f in KWin::Application::notify (this=0xbfb5da90, o=0xb334b88, e=0xbfb5cbd8) at ../../kwin/main.cpp:365
#21 0xb652c0bb in QCoreApplication::notifyInternal (this=0xbfb5da90, receiver=0xb334b88, event=0xbfb5cbd8) at kernel/qcoreapplication.cpp:731
#22 0xb5a81b3e in sendSpontaneousEvent (receiver=0xb334b88, event=0xbfb5cbd8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#23 qt_sendSpontaneousEvent (receiver=0xb334b88, event=0xbfb5cbd8) at kernel/qapplication.cpp:5456
#24 0xb6118a4f in QGraphicsView::mouseReleaseEvent (this=0xa16c0d8, event=0xbfb5d384) at graphicsview/qgraphicsview.cpp:3336
#25 0xb5adc13a in QWidget::event (this=0xa16c0d8, event=0xbfb5d384) at kernel/qwidget.cpp:8259
#26 0xb5ed09f3 in QFrame::event (this=0xa16c0d8, e=0xbfb5d384) at widgets/qframe.cpp:557
#27 0xb5f5f062 in QAbstractScrollArea::viewportEvent (this=0xa16c0d8, e=0xbfb5d384) at widgets/qabstractscrollarea.cpp:1043
#28 0xb611bdff in QGraphicsView::viewportEvent (this=0xa16c0d8, event=0xbfb5d384) at graphicsview/qgraphicsview.cpp:2864
#29 0xb5f61965 in viewportEvent (this=0xa979500, o=0xbcd7508, e=0xbfb5d384) at widgets/qabstractscrollarea_p.h:100
#30 QAbstractScrollAreaFilter::eventFilter (this=0xa979500, o=0xbcd7508, e=0xbfb5d384) at widgets/qabstractscrollarea_p.h:116
#31 0xb652c25a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x9f73de0, receiver=0xbcd7508, event=0xbfb5d384) at kernel/qcoreapplication.cpp:846
#32 0xb5a83d00 in QApplicationPrivate::notify_helper (this=0x9f73de0, receiver=0xbcd7508, e=0xbfb5d384) at kernel/qapplication.cpp:4458
#33 0xb5a89201 in QApplication::notify (this=0xbfb5da90, receiver=0xbcd7508, e=0xbfb5d384) at kernel/qapplication.cpp:4023
#34 0xb72f993a in KApplication::notify (this=0xbfb5da90, receiver=0xbcd7508, event=0xbfb5d384) at ../../kdeui/kernel/kapplication.cpp:311
#35 0xb769493f in KWin::Application::notify (this=0xbfb5da90, o=0xbcd7508, e=0xbfb5d384) at ../../kwin/main.cpp:365
#36 0xb652c0bb in QCoreApplication::notifyInternal (this=0xbfb5da90, receiver=0xbcd7508, event=0xbfb5d384) at kernel/qcoreapplication.cpp:731
#37 0xb5a84c3b in sendSpontaneousEvent (receiver=0xbcd7508, event=0xbfb5d384, alienWidget=0x0, nativeWidget=0xbcd7508, buttonDown=0xb63d2c60, lastMouseReceiver=..., spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#38 QApplicationPrivate::sendMouseEvent (receiver=0xbcd7508, event=0xbfb5d384, alienWidget=0x0, nativeWidget=0xbcd7508, buttonDown=0xb63d2c60, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3120
#39 0xb5b1004c in QETWidget::translateMouseEvent (this=0xbcd7508, event=0xbfb5d8ac) at kernel/qapplication_x11.cpp:4558
#40 0xb5b0e9b5 in QApplication::x11ProcessEvent (this=0xbfb5da90, event=0xbfb5d8ac) at kernel/qapplication_x11.cpp:3680
#41 0xb5b3b150 in QEventDispatcherX11::processEvents (this=0x9f29a78, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#42 0xb652b289 in QEventLoop::processEvents (this=0xbfb5d9d4, flags=...) at kernel/qeventloop.cpp:149
#43 0xb652b522 in QEventLoop::exec (this=0xbfb5d9d4, flags=...) at kernel/qeventloop.cpp:201
#44 0xb652fecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#45 0xb5a818e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#46 0xb7697593 in kdemain (argc=1, argv=0xbfb5dd04) at ../../kwin/main.cpp:514
#47 0x080485bb in main (argc=1, argv=0xbfb5dd04) at kwin_dummy.cpp:3

This bug may be a duplicate of or related to bug 242165.

Possible duplicates by query: bug 271435, bug 269237.

Reported using DrKonqi