Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2) "release 5"
Qt Version: 4.7.4
Operating System: Linux 3.1.0-1.2-desktop x86_64
Distribution: "openSUSE 12.1 (x86_64)"

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

Crashes on shutdown. Started in safe mode, but crash happened again. Sometimes it also crashes on login, but loading "safe session" helps - don't know why. Haven't noticed any differences between normal and "safe" session.

-- Backtrace:
Application: Plasma Desktop Shell (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f02cf9f5760 (LWP 4598))]

Thread 2 (Thread 0x7f02ad3a9700 (LWP 4642)):
#0  0x00007f02ce2e411f in __pthread_mutex_unlock_usercnt () from /lib64/libpthread.so.0
#1  0x00007f02c9e64b14 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f02c9e6592d in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f02c9e65f59 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f02ce682576 in QEventDispatcherGlib::processEvents (this=0x7f029c0008c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f02ce656a22 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f02ce656c1f in QEventLoop::exec (this=0x7f02ad3a8df0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f02ce56e5df in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007f02ce639aef in QInotifyFileSystemWatcherEngine::run (this=0x181e550) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f02ce571025 in QThreadPrivate::start (arg=0x181e550) at thread/qthread_unix.cpp:331
#10 0x00007f02ce2e0f05 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f02cd07953d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f02cf9f5760 (LWP 4598)):
[KCrash Handler]
#6  0x00007f02ce2bc8d0 in vtable for QGraphicsLayoutItem () from /usr/lib64/libQtGui.so.4
#7  0x00007f02b4e58cc6 in TaskGroupItem::~TaskGroupItem (this=0x28828b0, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007f02b4e58d79 in TaskGroupItem::~TaskGroupItem (this=0x28828b0, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#9  0x00007f02ce66e178 in QObject::event (this=0x28828b0, e=<optimized out>) at kernel/qobject.cpp:1209
#10 0x00007f02cde2331b in QGraphicsWidget::event (this=0x28828b0, event=0x29da260) at graphicsview/qgraphicswidget.cpp:1455
#11 0x00007f02cd809c34 in notify_helper (e=0x29da260, receiver=0x28828b0, this=0x6e48f0) at kernel/qapplication.cpp:4481
#12 QApplicationPrivate::notify_helper (this=0x6e48f0, receiver=0x28828b0, e=0x29da260) at kernel/qapplication.cpp:4453
#13 0x00007f02cd80eac1 in QApplication::notify (this=0x6d2360, receiver=0x28828b0, e=0x29da260) at kernel/qapplication.cpp:4360
#14 0x00007f02cf3e9e36 in KApplication::notify (this=0x6d2360, receiver=0x28828b0, event=0x29da260) at /usr/src/debug/kdelibs-4.7.2/kdeui/kernel/kapplication.cpp:311
#15 0x00007f02ce65781c in QCoreApplication::notifyInternal (this=0x6d2360, receiver=0x28828b0, event=0x29da260) at kernel/qcoreapplication.cpp:787
#16 0x00007f02ce65abf8 in sendEvent (event=0x29da260, receiver=0x28828b0) at kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x615800) at kernel/qcoreapplication.cpp:1428
#18 0x00007f02ce65ae1e in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#19 0x00007f02bd0e5773 in kdemain (argc=1, argv=0x658d10) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/shell/main.cpp:120
#20 0x0000000000408897 in _start ()

Possible duplicates by query: bug 289350, bug 288964, bug 288822, bug 288715, bug 288129.

Reported using DrKonqi