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 x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
Plasma Desktop (KDE 4.7.2, Kubuntu 11.10, 64 bit) has crashed on system restart (from KDE menu).

-- Backtrace:
Application: Plasma-Desktop-Umgebung (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f04d92397a0 (LWP 2085))]

Thread 3 (Thread 0x7f04bae11700 (LWP 2086)):
#0  0x00007f04d8b42ac0 in pthread_mutex_unlock (mutex=0x2780108) at forward.c:184
#1  0x00007f04cd0b2fe4 in g_main_context_prepare (context=0x2780100, priority=0x7f04bae10c88) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:2760
#2  0x00007f04cd0b3dfd in g_main_context_iterate (context=0x2780100, block=1, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3069
#3  0x00007f04cd0b4429 in g_main_context_iteration (context=0x2780100, may_block=1) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3152
#4  0x00007f04d5d1af3e in QEventDispatcherGlib::processEvents (this=0x277f840, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f04d5ceecf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f04d5ceeef7 in QEventLoop::exec (this=0x7f04bae10db0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f04d5c0627f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007f04d5cd1cbf in QInotifyFileSystemWatcherEngine::run (this=0x277ef60) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f04d5c08d05 in QThreadPrivate::start (arg=0x277ef60) at thread/qthread_unix.cpp:331
#10 0x00007f04cdbc0efc in start_thread (arg=0x7f04bae11700) at pthread_create.c:304
#11 0x00007f04d8b3489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f04ab59b700 (LWP 2089)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f04ab59aad0 in ?? ()
#2  0x00007fffbd9ff7e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 1 (Thread 0x7f04d92397a0 (LWP 2085)):
[KCrash Handler]
#6  0x0000000006421b9a in ?? ()
#7  0x00007f04b90f1b96 in TaskGroupItem::~TaskGroupItem (this=0x52ed550, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007f04b90f1c49 in TaskGroupItem::~TaskGroupItem (this=0x52ed550, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#9  0x00007f04d5d06a88 in QObject::event (this=0x52ed550, e=<optimized out>) at kernel/qobject.cpp:1200
#10 0x00007f04d56be89b in QGraphicsWidget::event (this=0x52ed550, event=0x383f3c0) at graphicsview/qgraphicswidget.cpp:1455
#11 0x00007f04d50a0424 in notify_helper (e=0x383f3c0, receiver=0x52ed550, this=0x2116f20) at kernel/qapplication.cpp:4486
#12 QApplicationPrivate::notify_helper (this=0x2116f20, receiver=0x52ed550, e=0x383f3c0) at kernel/qapplication.cpp:4458
#13 0x00007f04d50a5291 in QApplication::notify (this=0x21045e0, receiver=0x52ed550, e=0x383f3c0) at kernel/qapplication.cpp:4365
#14 0x00007f04d699e126 in KApplication::notify (this=0x21045e0, receiver=0x52ed550, event=0x383f3c0) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007f04d5cefafc in QCoreApplication::notifyInternal (this=0x21045e0, receiver=0x52ed550, event=0x383f3c0) at kernel/qcoreapplication.cpp:787
#16 0x00007f04d5cf351f in sendEvent (event=0x383f3c0, receiver=0x52ed550) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x2095430) at kernel/qcoreapplication.cpp:1428
#18 0x00007f04d5cf37c4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#19 0x00007f04d8e331a3 in kdemain (argc=1, argv=0x7fffbd9a52a8) at ../../../../plasma/desktop/shell/main.cpp:120
#20 0x00007f04d8a7430d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffbd9a52a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffbd9a5298) at libc-start.c:226
#21 0x0000000000400671 in _start ()

Possible duplicates by query: bug 284594, bug 284150, bug 284034, bug 283747, bug 283724.

Reported using DrKonqi