Application: plasma-desktop (4.11.2)
KDE Platform Version: 4.11.2 (Compiled from sources)
Qt Version: 4.8.4
Operating System: Linux 3.8.0-32-generic i686
Distribution: Ubuntu 13.04

-- Information about the crash:
- What I was doing when the application crashed:
I was working on several documents LibreOffice Writer. So to get an easier view at each one of them, I ungrouped the program in the taskbar.
Plasma-Desktop crashed and rebooted with the documents separated as I asked.

-- Backtrace:
Application: Outil de gestion de fenêtres Plasma (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb10d3740 (LWP 3097))]

Thread 4 (Thread 0xabd48b40 (LWP 3098)):
#0  0xb76e3424 in __kernel_vsyscall ()
#1  0xb1f3f84b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb7592d7c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb2f4e0ad in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb2f4e0df in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb1f3bd78 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb75853de in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xa46a7b40 (LWP 3102)):
#0  0xb1e2bdc1 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb1e2c5cf in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb1e2c831 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb5f7ac3f in QEventDispatcherGlib::processEvents (this=0xa3d00468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0xb5f473ec in QEventLoop::processEvents (this=this@entry=0xa46a7228, flags=...) at kernel/qeventloop.cpp:149
#5  0xb5f476e1 in QEventLoop::exec (this=this@entry=0xa46a7228, flags=...) at kernel/qeventloop.cpp:204
#6  0xb5e32fec in QThread::exec (this=this@entry=0x93ce7c0) at thread/qthread.cpp:542
#7  0xb5f26f2d in QInotifyFileSystemWatcherEngine::run (this=0x93ce7c0) at io/qfilesystemwatcher_inotify.cpp:256
#8  0xb5e35b18 in QThreadPrivate::start (arg=0x93ce7c0) at thread/qthread_unix.cpp:338
#9  0xb1f3bd78 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#10 0xb75853de in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xa2b0ab40 (LWP 3105)):
#0  0xb1e2c834 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb5f7ac3f in QEventDispatcherGlib::processEvents (this=0x98111e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#2  0xb5f473ec in QEventLoop::processEvents (this=this@entry=0xa2b0a228, flags=...) at kernel/qeventloop.cpp:149
#3  0xb5f476e1 in QEventLoop::exec (this=this@entry=0xa2b0a228, flags=...) at kernel/qeventloop.cpp:204
#4  0xb5e32fec in QThread::exec (this=this@entry=0x9810e60) at thread/qthread.cpp:542
#5  0xb5f26f2d in QInotifyFileSystemWatcherEngine::run (this=0x9810e60) at io/qfilesystemwatcher_inotify.cpp:256
#6  0xb5e35b18 in QThreadPrivate::start (arg=0x9810e60) at thread/qthread_unix.cpp:338
#7  0xb1f3bd78 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0xb75853de in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb10d3740 (LWP 3097)):
[KCrash Handler]
#7  0xb5a8f5f6 in QGraphicsItem::ungrabMouse (this=0xac74d28) at graphicsview/qgraphicsitem.cpp:3522
#8  0xb5ac13d2 in QGraphicsScenePrivate::clearMouseGrabber (this=this@entry=0x88f9820) at graphicsview/qgraphicsscene.cpp:1004
#9  0xb5ac4f63 in QGraphicsScenePrivate::sendMouseEvent (this=0x88f9820, mouseEvent=0xbfa7cee0) at graphicsview/qgraphicsscene.cpp:1279
#10 0xb5ace063 in QGraphicsScene::mouseMoveEvent (this=0x88ec4a8, mouseEvent=0xbfa7cee0) at graphicsview/qgraphicsscene.cpp:4102
#11 0xb5ada12d in QGraphicsScene::event (this=0x88ec4a8, event=0xbfa7cee0) at graphicsview/qgraphicsscene.cpp:3451
#12 0xb5436c7c in QApplicationPrivate::notify_helper (this=0x88aad10, receiver=0x88ec4a8, e=0xbfa7cee0) at kernel/qapplication.cpp:4567
#13 0xb5439b94 in QApplication::notify (this=0xbfa7cee0, receiver=0x88ec4a8, e=0xbfa7cee0) at kernel/qapplication.cpp:3949
#14 0xb65e3ec1 in KApplication::notify (this=0x88940b8, receiver=0x88ec4a8, event=0xbfa7cee0) at ../../kdeui/kernel/kapplication.cpp:311
#15 0xb5f4890e in QCoreApplication::notifyInternal (this=0x88940b8, receiver=receiver@entry=0x88ec4a8, event=event@entry=0xbfa7cee0) at kernel/qcoreapplication.cpp:946
#16 0xb543524d in sendSpontaneousEvent (event=0xbfa7cee0, receiver=0x88ec4a8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#17 qt_sendSpontaneousEvent (receiver=0x88ec4a8, event=event@entry=0xbfa7cee0) at kernel/qapplication.cpp:5565
#18 0xb5af4ec2 in QGraphicsViewPrivate::mouseMoveEventHandler (this=0x994d408, event=0xbfa7d6e4) at graphicsview/qgraphicsview.cpp:646
#19 0xb5af523e in QGraphicsView::mouseMoveEvent (this=0x98d1448, event=0xbfa7d6e4) at graphicsview/qgraphicsview.cpp:3276
#20 0xb548d74c in QWidget::event (this=0x98d1448, event=0xbfa7d6e4) at kernel/qwidget.cpp:8360
#21 0xb58a14b5 in QFrame::event (this=this@entry=0x98d1448, e=e@entry=0xbfa7d6e4) at widgets/qframe.cpp:557
#22 0xb59341d3 in QAbstractScrollArea::viewportEvent (this=0x98d1448, e=0xbfa7d6e4) at widgets/qabstractscrollarea.cpp:1043
#23 0xb5af759c in QGraphicsView::viewportEvent (this=0x98d1448, event=0xbfa7d6e4) at graphicsview/qgraphicsview.cpp:2866
#24 0xb5934676 in viewportEvent (event=0xbfa7d6e4, this=<optimized out>) at widgets/qabstractscrollarea_p.h:100
#25 QAbstractScrollAreaFilter::eventFilter (this=0x9fc1478, o=0x98d2e40, e=0xbfa7d6e4) at widgets/qabstractscrollarea_p.h:116
#26 0xb5f48a7e in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x88aad10, receiver=receiver@entry=0x98d2e40, event=event@entry=0xbfa7d6e4) at kernel/qcoreapplication.cpp:1056
#27 0xb5436c4d in QApplicationPrivate::notify_helper (this=0x88aad10, receiver=0x98d2e40, e=0xbfa7d6e4) at kernel/qapplication.cpp:4563
#28 0xb543a587 in QApplication::notify (this=0x88aad10, receiver=0x98d2e40, e=0xbfa7d6e4) at kernel/qapplication.cpp:4110
#29 0xb65e3ec1 in KApplication::notify (this=0x88940b8, receiver=0x98d2e40, event=0xbfa7d6e4) at ../../kdeui/kernel/kapplication.cpp:311
#30 0xb5f4890e in QCoreApplication::notifyInternal (this=0x88940b8, receiver=receiver@entry=0x98d2e40, event=event@entry=0xbfa7d6e4) at kernel/qcoreapplication.cpp:946
#31 0xb543d823 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#32 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x98d2e40, event=event@entry=0xbfa7d6e4, alienWidget=alienWidget@entry=0x98d2e40, nativeWidget=nativeWidget@entry=0x98d1448, buttonDown=buttonDown@entry=0xb5dc9d14 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#33 0xb54bf735 in QETWidget::translateMouseEvent (this=0x98d1448, event=0xbfa7db0c) at kernel/qapplication_x11.cpp:4631
#34 0xb54be525 in QApplication::x11ProcessEvent (this=0x88940b8, event=0xbfa7db0c) at kernel/qapplication_x11.cpp:3746
#35 0xb54ed904 in x11EventSourceDispatch (s=0x88aa1b0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#36 0xb1e2c3b3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#37 0xb1e2c750 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#38 0xb1e2c831 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#39 0xb5f7ac21 in QEventDispatcherGlib::processEvents (this=this@entry=0x8848ec0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#40 0xb54eda0a in QGuiEventDispatcherGlib::processEvents (this=0x8848ec0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#41 0xb5f473ec in QEventLoop::processEvents (this=this@entry=0xbfa7de08, flags=...) at kernel/qeventloop.cpp:149
#42 0xb5f476e1 in QEventLoop::exec (this=this@entry=0xbfa7de08, flags=...) at kernel/qeventloop.cpp:204
#43 0xb5f4d3fa in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#44 0xb5434fc4 in QApplication::exec () at kernel/qapplication.cpp:3828
#45 0xb769ddd2 in kdemain (argc=1, argv=0xbfa7dfc4) at ../../../../plasma/desktop/shell/main.cpp:126
#46 0x0804855b in main (argc=1, argv=0xbfa7dfc4) at plasma-desktop_dummy.cpp:3

The reporter indicates this bug may be a duplicate of or related to bug 324844.

Possible duplicates by query: bug 324844.

Reported using DrKonqi