Application: kwin (4.7.2 (4.7.2))
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-13-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
using VLC
watching video in VLC
the problem always when i try to minimise the window of VLC

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb76e7720 (LWP 1515))]

Thread 3 (Thread 0xb2584b70 (LWP 1522)):
#0  0x0099c416 in __kernel_vsyscall ()
#1  0x00e29ed1 in select () from /lib/i386-linux-gnu/libc.so.6
#2  0x03ad647a in qt_safe_select (nfds=18, fdread=0x8ab6340, fdwrite=0x8ab6554, fdexcept=0x8ab6768, orig_timeout=0x0) at kernel/qcore_unix.cpp:82
#3  0x03adacab in QEventDispatcherUNIX::select (this=0x8af2970, nfds=18, readfds=0x8ab6340, writefds=0x8ab6554, exceptfds=0x8ab6768, timeout=0x0) at kernel/qeventdispatcher_unix.cpp:631
#4  0x03adbfa5 in QEventDispatcherUNIXPrivate::doSelect (this=0x8ab6248, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:219
#5  0x03adc454 in QEventDispatcherUNIX::processEvents (this=0x8af2970, flags=...) at kernel/qeventdispatcher_unix.cpp:918
#6  0x03aaa1dd in QEventLoop::processEvents (this=0xb25842a0, flags=...) at kernel/qeventloop.cpp:149
#7  0x03aaa421 in QEventLoop::exec (this=0xb25842a0, flags=...) at kernel/qeventloop.cpp:201
#8  0x039ad90b in QThread::exec (this=0x8ab1e08) at thread/qthread.cpp:498
#9  0x03a8ae2d in QInotifyFileSystemWatcherEngine::run (this=0x8ab1e08) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x039b07b3 in QThreadPrivate::start (arg=0x8ab1e08) at thread/qthread_unix.cpp:331
#11 0x0385fd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x00e310ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xb1d7bb70 (LWP 1523)):
#0  0x0099c416 in __kernel_vsyscall ()
#1  0x03863a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x00e3ecfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x0104f9a9 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0x0104f9ef in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0x0385fd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x00e310ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb76e7720 (LWP 1515)):
[KCrash Handler]
#7  QGraphicsItemPrivate::invalidateParentGraphicsEffectsRecursively (this=0x0) at graphicsview/qgraphicsitem.cpp:5379
#8  0x0191c86f in update (rect=..., this=0x9126b08) at graphicsview/qgraphicsitem.cpp:5688
#9  QGraphicsItem::update (this=0x9126b08, rect=...) at graphicsview/qgraphicsitem.cpp:5681
#10 0x04cde871 in ?? () from /usr/lib/kde4/kwin3_aurorae.so
#11 0x0191980f in QGraphicsItem::sceneEvent (this=0x9126b08, event=0xbf8ec978) at graphicsview/qgraphicsitem.cpp:6730
#12 0x01976806 in QGraphicsWidget::sceneEvent (this=0x9126b00, event=0xbf8ec978) at graphicsview/qgraphicswidget.cpp:1223
#13 0x01942c7e in sendEvent (event=0xbf8ec978, item=0x9126b08, this=<optimized out>) at graphicsview/qgraphicsscene.cpp:1217
#14 QGraphicsScenePrivate::sendEvent (this=0x9138d70, item=0x9126b08, event=0xbf8ec978) at graphicsview/qgraphicsscene.cpp:1193
#15 0x019438ab in QGraphicsScenePrivate::sendMouseEvent (this=0x9138d70, mouseEvent=0xbf8ec978) at graphicsview/qgraphicsscene.cpp:1291
#16 0x019442c7 in QGraphicsScene::mouseReleaseEvent (this=0x8feb4b8, mouseEvent=0xbf8ec978) at graphicsview/qgraphicsscene.cpp:4121
#17 0x04ce4d62 in ?? () from /usr/lib/kde4/kwin3_aurorae.so
#18 0x01952aec in QGraphicsScene::event (this=0x8feb4b8, event=0xbf8ec978) at graphicsview/qgraphicsscene.cpp:3453
#19 0x012b7d54 in notify_helper (e=0xbf8ec978, receiver=0x8feb4b8, this=0x81dc510) at kernel/qapplication.cpp:4486
#20 QApplicationPrivate::notify_helper (this=0x81dc510, receiver=0x8feb4b8, e=0xbf8ec978) at kernel/qapplication.cpp:4458
#21 0x012bd103 in QApplication::notify (this=0xbf8ec978, receiver=0x8feb4b8, e=0xbf8ec978) at kernel/qapplication.cpp:3886
#22 0x005f4681 in KApplication::notify (this=0xbf8ed650, receiver=0x8feb4b8, event=0xbf8ec978) at ../../kdeui/kernel/kapplication.cpp:311
#23 0x00316fdf in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so
#24 0x03aab19e in QCoreApplication::notifyInternal (this=0xbf8ed650, receiver=0x8feb4b8, event=0xbf8ec978) at kernel/qcoreapplication.cpp:787
#25 0x012b5b6d in sendSpontaneousEvent (event=0xbf8ec978, receiver=0x8feb4b8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#26 qt_sendSpontaneousEvent (receiver=0x8feb4b8, event=0xbf8ec978) at kernel/qapplication.cpp:5480
#27 0x01971978 in QGraphicsView::mouseReleaseEvent (this=0x907c8d8, event=0xbf8ecf8c) at graphicsview/qgraphicsview.cpp:3336
#28 0x01311f98 in QWidget::event (this=0x907c8d8, event=0xbf8ecf8c) at kernel/qwidget.cpp:8295
#29 0x01717235 in QFrame::event (this=0x907c8d8, e=0xbf8ecf8c) at widgets/qframe.cpp:557
#30 0x017a97d1 in QAbstractScrollArea::viewportEvent (this=0x907c8d8, e=0xbf8ecf8c) at widgets/qabstractscrollarea.cpp:1043
#31 0x01974cb4 in QGraphicsView::viewportEvent (this=0x907c8d8, event=0xbf8ecf8c) at graphicsview/qgraphicsview.cpp:2864
#32 0x017abee6 in viewportEvent (this=<optimized out>, event=0xbf8ecf8c) at widgets/qabstractscrollarea_p.h:100
#33 eventFilter (e=0xbf8ecf8c, this=<optimized out>, o=<optimized out>) at widgets/qabstractscrollarea_p.h:116
#34 QAbstractScrollAreaFilter::eventFilter (this=0x91eedf8, o=0x913a618, e=0xbf8ecf8c) at widgets/qabstractscrollarea_p.h:115
#35 0x03aab336 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x81dc510, receiver=0x913a618, event=0xbf8ecf8c) at kernel/qcoreapplication.cpp:902
#36 0x012b7d22 in notify_helper (e=0xbf8ecf8c, receiver=0x913a618, this=0x81dc510) at kernel/qapplication.cpp:4482
#37 QApplicationPrivate::notify_helper (this=0x81dc510, receiver=0x913a618, e=0xbf8ecf8c) at kernel/qapplication.cpp:4458
#38 0x012bddbb in QApplication::notify (this=0x81dc510, receiver=0x913a618, e=0xbf8ecf8c) at kernel/qapplication.cpp:4047
#39 0x005f4681 in KApplication::notify (this=0xbf8ed650, receiver=0x913a618, event=0xbf8ecf8c) at ../../kdeui/kernel/kapplication.cpp:311
#40 0x00316fdf in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so
#41 0x03aab19e in QCoreApplication::notifyInternal (this=0xbf8ed650, receiver=0x913a618, event=0xbf8ecf8c) at kernel/qcoreapplication.cpp:787
#42 0x012b8d15 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#43 QApplicationPrivate::sendMouseEvent (receiver=0x913a618, event=0xbf8ecf8c, alienWidget=0x0, nativeWidget=0x913a618, buttonDown=0x1c22eb4, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#44 0x013452c4 in QETWidget::translateMouseEvent (this=0x913a618, event=0xbf8ed40c) at kernel/qapplication_x11.cpp:4568
#45 0x01343e4d in QApplication::x11ProcessEvent (this=0xbf8ed650, event=0xbf8ed40c) at kernel/qapplication_x11.cpp:3690
#46 0x01370e38 in QEventDispatcherX11::processEvents (this=0x81ad218, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#47 0x03aaa1dd in QEventLoop::processEvents (this=0xbf8ed594, flags=...) at kernel/qeventloop.cpp:149
#48 0x03aaa421 in QEventLoop::exec (this=0xbf8ed594, flags=...) at kernel/qeventloop.cpp:201
#49 0x03aaf19d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#50 0x012b58f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#51 0x00319c0d in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so
#52 0x0804850b in ?? ()
#53 0x00d78113 in __libc_start_main () from /lib/i386-linux-gnu/libc.so.6
#54 0x08048531 in _start ()

Possible duplicates by query: bug 284028, bug 280704, bug 279319, bug 271435, bug 269237.

Reported using DrKonqi