Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2) "release 5"
Qt Version: 4.7.4
Operating System: Linux 3.1.9-1.4-desktop x86_64
Distribution: "openSUSE 12.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
Before logging out, I had Firefox and KPatience running. Then, the laptop crashed during the attempt to shut down. I am not sure if this is a duplicate, as there are other reports that sound similar. But sorry, I am not much of an openSUSE expert, and this is my first attempt to file a bug report.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma-Desktop-Umgebung (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f5e922fd760 (LWP 1929))]

Thread 2 (Thread 0x7f5e6ee72700 (LWP 1959)):
#0  0x00007fff5c3ff8de in ?? ()
#1  0x00007f5e8ca13e91 in clock_gettime () from /lib64/librt.so.1
#2  0x00007f5e90ebb114 in ?? () from /usr/lib64/libQtCore.so.4
#3  0x00007f5e90f7cd2d in ?? () from /usr/lib64/libQtCore.so.4
#4  0x00007f5e90f7d063 in ?? () from /usr/lib64/libQtCore.so.4
#5  0x00007f5e90f7bacc in ?? () from /usr/lib64/libQtCore.so.4
#6  0x00007f5e90f7bb75 in ?? () from /usr/lib64/libQtCore.so.4
#7  0x00007f5e8c75eb22 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#8  0x00007f5e8c75f92d in ?? () from /usr/lib64/libglib-2.0.so.0
#9  0x00007f5e8c75ff59 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#10 0x00007f5e90f7c586 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#11 0x00007f5e90f50a32 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#12 0x00007f5e90f50c2f in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#13 0x00007f5e90e685df in QThread::exec() () from /usr/lib64/libQtCore.so.4
#14 0x00007f5e90f33aff in ?? () from /usr/lib64/libQtCore.so.4
#15 0x00007f5e90e6b025 in ?? () from /usr/lib64/libQtCore.so.4
#16 0x00007f5e90bdaf05 in start_thread () from /lib64/libpthread.so.0
#17 0x00007f5e8f97363d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f5e922fd760 (LWP 1929)):
[KCrash Handler]
#6  0x000000000081dd50 in ?? ()
#7  0x00007f5e779f2cc6 in TaskGroupItem::~TaskGroupItem (this=0x72f440, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007f5e779f2d79 in TaskGroupItem::~TaskGroupItem (this=0x72f440, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#9  0x00007f5e90f68188 in QObject::event(QEvent*) () from /usr/lib64/libQtCore.so.4
#10 0x00007f5e9071d31b in QGraphicsWidget::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#11 0x00007f5e90103c34 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#12 0x00007f5e90108ac1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#13 0x00007f5e91ce3e36 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#14 0x00007f5e90f5182c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#15 0x00007f5e90f54c08 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQtCore.so.4
#16 0x00007f5e90f54e2e in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#17 0x00007f5e7faaa773 in kdemain (argc=1, argv=0x683df0) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/shell/main.cpp:120
#18 0x0000000000408897 in _start ()

This bug may be a duplicate of or related to bug 275286.

Possible duplicates by query: bug 293937, bug 293859, bug 293361, bug 293350, bug 292722.

Reported using DrKonqi