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:

kbuildsycoca4 && kquitapp plasma-desktop && kstart plasma-desktop

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f2778fb7760 (LWP 5035))]

Thread 2 (Thread 0x7f2753d03700 (LWP 5036)):
#0  0x00007f27778a711f in __pthread_mutex_unlock_usercnt () from /lib64/libpthread.so.0
#1  0x00007f2773427a6f in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f277342892d in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f2773428f59 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f2777c45576 in QEventDispatcherGlib::processEvents (this=0x109af90, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f2777c19a22 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f2777c19c1f in QEventLoop::exec (this=0x7f2753d02d30, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f2777b315df in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007f2777bfcaef in QInotifyFileSystemWatcherEngine::run (this=0x10b5bd0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f2777b34025 in QThreadPrivate::start (arg=0x10b5bd0) at thread/qthread_unix.cpp:331
#10 0x00007f2768c6325a in ?? () from /usr/lib64/libGL.so.1
#11 0x00007f27778a3f05 in start_thread () from /lib64/libpthread.so.0
#12 0x00007f277663c53d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f2778fb7760 (LWP 5035)):
[KCrash Handler]
#6  0x00007f275c6c0cc3 in TaskGroupItem::~TaskGroupItem (this=0x13d8650, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#7  0x00007f275c6c0d79 in TaskGroupItem::~TaskGroupItem (this=0x13d8650, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#8  0x00007f2777c31178 in QObject::event (this=0x13d8650, e=<optimized out>) at kernel/qobject.cpp:1209
#9  0x00007f27773e627b in QGraphicsWidget::event (this=0x13d8650, event=0x17615d0) at graphicsview/qgraphicswidget.cpp:1455
#10 0x00007f2776dccbe4 in notify_helper (e=0x17615d0, receiver=0x13d8650, this=0x72c8a0) at kernel/qapplication.cpp:4481
#11 QApplicationPrivate::notify_helper (this=0x72c8a0, receiver=0x13d8650, e=0x17615d0) at kernel/qapplication.cpp:4453
#12 0x00007f2776dd1a71 in QApplication::notify (this=0x71e520, receiver=0x13d8650, e=0x17615d0) at kernel/qapplication.cpp:4360
#13 0x00007f27789ace36 in KApplication::notify (this=0x71e520, receiver=0x13d8650, event=0x17615d0) at /usr/src/debug/kdelibs-4.7.2/kdeui/kernel/kapplication.cpp:311
#14 0x00007f2777c1a81c in QCoreApplication::notifyInternal (this=0x71e520, receiver=0x13d8650, event=0x17615d0) at kernel/qcoreapplication.cpp:787
#15 0x00007f2777c1dbf8 in sendEvent (event=0x17615d0, receiver=0x13d8650) at kernel/qcoreapplication.h:215
#16 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x6120b0) at kernel/qcoreapplication.cpp:1428
#17 0x00007f2777c1de1e in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#18 0x00007f2764ae7773 in kdemain (argc=1, argv=0x6c7810) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/shell/main.cpp:120
#19 0x0000000000408897 in _start ()

Possible duplicates by query: bug 287342, bug 287333, bug 287310, bug 287285, bug 287205.

Reported using DrKonqi