Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic-pae i686
Distribution: Ubuntu 11.10

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

shutting down the computer. This time, no apt-get or friends was used

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb0502720 (LWP 1701))]

Thread 4 (Thread 0xa8805b70 (LWP 1705)):
#0  0xb76ea424 in __kernel_vsyscall ()
#1  0xb759940e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2e8d34b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2e7e896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2e7ec2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb63f5b37 in QEventDispatcherGlib::processEvents (this=0xa9f6b40, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0xb63c61dd in QEventLoop::processEvents (this=0xa88051f0, flags=...) at kernel/qeventloop.cpp:149
#7  0xb63c6421 in QEventLoop::exec (this=0xa88051f0, flags=...) at kernel/qeventloop.cpp:201
#8  0xb62c990b in QThread::exec (this=0xa9f1870) at thread/qthread.cpp:498
#9  0xb63a6e2d in QInotifyFileSystemWatcherEngine::run (this=0xa9f1870) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb62cc7b3 in QThreadPrivate::start (arg=0xa9f1870) at thread/qthread_unix.cpp:331
#11 0xb25e89cd in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#12 0xb75a80ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xa7effb70 (LWP 1706)):
#0  0xb2f9adbd in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb75b5f14 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2e7d117 in g_main_context_release () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2e7e906 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2e7ec2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb63f5b37 in QEventDispatcherGlib::processEvents (this=0xaa12c50, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0xb63c61dd in QEventLoop::processEvents (this=0xa7eff1f0, flags=...) at kernel/qeventloop.cpp:149
#7  0xb63c6421 in QEventLoop::exec (this=0xa7eff1f0, flags=...) at kernel/qeventloop.cpp:201
#8  0xb62c990b in QThread::exec (this=0xaa151f0) at thread/qthread.cpp:498
#9  0xb63a6e2d in QInotifyFileSystemWatcherEngine::run (this=0xaa151f0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb62cc7b3 in QThreadPrivate::start (arg=0xaa151f0) at thread/qthread_unix.cpp:331
#11 0xb25e89cd in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#12 0xb75a80ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xa65b6b70 (LWP 1714)):
#0  0xb76ea424 in __kernel_vsyscall ()
#1  0xb759940e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2e8d34b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2e7e896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2e7ef9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xa6e78cea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb2ea55f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb25e89cd in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#8  0xb75a80ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb0502720 (LWP 1701)):
[KCrash Handler]
#7  0x00000000 in ?? ()
#8  0xaf09996f in TaskGroupItem::~TaskGroupItem (this=0xbdc6620, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#9  0xaf099a42 in TaskGroupItem::~TaskGroupItem (this=0xbdc6620, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#10 0xb63da5f3 in qDeleteInEventHandler (o=0xbdc6620) at kernel/qobject.cpp:3986
#11 0xb63dfb80 in QObject::event (this=0xbdc6620, e=0xb5bb9d0) at kernel/qobject.cpp:1200
#12 0xb5fb1bd4 in QGraphicsWidget::event (this=0xbdc6620, event=0xb5bb9d0) at graphicsview/qgraphicswidget.cpp:1455
#13 0xb58f2d54 in notify_helper (e=0xb5bb9d0, receiver=0xbdc6620, this=0xa088ff0) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0xa088ff0, receiver=0xbdc6620, e=0xb5bb9d0) at kernel/qapplication.cpp:4458
#15 0xb58f8103 in QApplication::notify (this=0xb5bb9d0, receiver=0xbdc6620, e=0xb5bb9d0) at kernel/qapplication.cpp:3886
#16 0xb6a2c681 in KApplication::notify (this=0xa0772d8, receiver=0xbdc6620, event=0xb5bb9d0) at ../../kdeui/kernel/kapplication.cpp:311
#17 0xb63c719e in QCoreApplication::notifyInternal (this=0xa0772d8, receiver=0xbdc6620, event=0xb5bb9d0) at kernel/qcoreapplication.cpp:787
#18 0xb63caf93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x9ff32e0) at kernel/qcoreapplication.cpp:1428
#20 0xb63cb0ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=52) at kernel/qcoreapplication.cpp:1321
#21 0xb63cb1d3 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#22 0xb58f08f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#23 0xb769f18b in kdemain (argc=1, argv=0xbf9d41e4) at ../../../../plasma/desktop/shell/main.cpp:120
#24 0x0804850b in main (argc=1, argv=0xbf9d41e4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 286544, bug 286027, bug 285724, bug 285717, bug 285045.

Reported using DrKonqi