Application: plasma-desktop (0.4)
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:
Plasma crashed when I tried to shutdown my computer. That's all what i can tell :(

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb290d720 (LWP 1659))]

Thread 4 (Thread 0xabdacb70 (LWP 1685)):
#0  0xb77ff424 in __kernel_vsyscall ()
#1  0xb76d2f76 in __poll (fds=0xab400870, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#2  0xb36ba84b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb36aa1af in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb36aa524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb66fc577 in QEventDispatcherGlib::processEvents (this=0x9121878, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0xb66ce289 in QEventLoop::processEvents (this=0xabdac280, flags=...) at kernel/qeventloop.cpp:149
#7  0xb66ce522 in QEventLoop::exec (this=0xabdac280, flags=...) at kernel/qeventloop.cpp:201
#8  0xb65d82a0 in QThread::exec (this=0x9114680) at thread/qthread.cpp:492
#9  0xb66affdb in QInotifyFileSystemWatcherEngine::run (this=0x9114680) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb65dada2 in QThreadPrivate::start (arg=0x9114680) at thread/qthread_unix.cpp:320
#11 0xb3796e99 in start_thread (arg=0xabdacb70) at pthread_create.c:304
#12 0xb76e173e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xaa42fb70 (LWP 1704)):
#0  0xb3743d41 in clock_gettime (clock_id=1, tp=0xaa42eff0) at ../sysdeps/unix/clock_gettime.c:116
#1  0xb6630dd8 in do_gettime () at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb66fd4f2 in updateCurrentTime (this=0x9175944, tm=...) at kernel/qeventdispatcher_unix.cpp:339
#4  QTimerInfoList::timerWait (this=0x9175944, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb66fbd32 in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xaa42f0cc) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb66fbdcd in timerSourcePrepare (source=0x9175910, timeout=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb36a8fd4 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb36a9e63 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb36aa524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb66fc577 in QEventDispatcherGlib::processEvents (this=0x9175570, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0xb66ce289 in QEventLoop::processEvents (this=0xaa42f280, flags=...) at kernel/qeventloop.cpp:149
#12 0xb66ce522 in QEventLoop::exec (this=0xaa42f280, flags=...) at kernel/qeventloop.cpp:201
#13 0xb65d82a0 in QThread::exec (this=0x91746e8) at thread/qthread.cpp:492
#14 0xb66affdb in QInotifyFileSystemWatcherEngine::run (this=0x91746e8) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb65dada2 in QThreadPrivate::start (arg=0x91746e8) at thread/qthread_unix.cpp:320
#16 0xb3796e99 in start_thread (arg=0xaa42fb70) at pthread_create.c:304
#17 0xb76e173e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xa7f68b70 (LWP 1753)):
#0  0xb77ff424 in __kernel_vsyscall ()
#1  0xb76d2f76 in __poll (fds=0x960b248, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#2  0xb36ba84b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb36aa1af in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb36aa92b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xa8874304 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb36d32df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb3796e99 in start_thread (arg=0xa7f68b70) at pthread_create.c:304
#8  0xb76e173e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb290d720 (LWP 1659)):
[KCrash Handler]
#7  0xb655cb90 in vtable for QPaintDevice () from /usr/lib/libQtGui.so.4
#8  0xb158ca11 in TaskGroupItem::~TaskGroupItem (this=0x9abe4d0, __in_chrg=<value optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#9  0xb158cae2 in TaskGroupItem::~TaskGroupItem (this=0x9abe4d0, __in_chrg=<value optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#10 0xb66e1bc5 in qDeleteInEventHandler (o=0x9abe4d0) at kernel/qobject.cpp:3995
#11 0xb66e43e8 in QObject::event (this=0x9abe4d0, e=0x936bb90) at kernel/qobject.cpp:1209
#12 0xb62c1a14 in QGraphicsWidget::event (this=0x9abe4d0, event=0x936bb90) at graphicsview/qgraphicswidget.cpp:1423
#13 0xb5c27d24 in QApplicationPrivate::notify_helper (this=0x8a16360, receiver=0x9abe4d0, e=0x936bb90) at kernel/qapplication.cpp:4462
#14 0xb5c2c8ce in QApplication::notify (this=0x8a04dd8, receiver=0x9abe4d0, e=0x936bb90) at kernel/qapplication.cpp:3862
#15 0xb6ccb93a in KApplication::notify (this=0x8a04dd8, receiver=0x9abe4d0, event=0x936bb90) at ../../kdeui/kernel/kapplication.cpp:311
#16 0xb66cf0bb in QCoreApplication::notifyInternal (this=0x8a04dd8, receiver=0x9abe4d0, event=0x936bb90) at kernel/qcoreapplication.cpp:731
#17 0xb66d2c79 in sendEvent (receiver=0x0, event_type=52, data=0x89b0f20) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#18 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x89b0f20) at kernel/qcoreapplication.cpp:1372
#19 0xb66d2e0d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=52) at kernel/qcoreapplication.cpp:1265
#20 0xb66d2f16 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1015
#21 0xb5c258e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#22 0xb77c0fdb in kdemain (argc=1, argv=0xbf9bfa54) at ../../../../plasma/desktop/shell/main.cpp:120
#23 0x080485bb in main (argc=1, argv=0xbf9bfa54) at plasma-desktop_dummy.cpp:3

Reported using DrKonqi