Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.00 (4.7.0)
Qt Version: 4.7.3
Operating System: Linux 3.0.0-8-generic x86_64
Distribution: Ubuntu oneiric (development branch)

-- Information about the crash:
When I power down pc choosing power off from kde, it crashes.
I have no other information

The crash can be reproduced every time.

-- Backtrace:
Application: Shell del desktop di Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f3bbb401780 (LWP 1685))]

Thread 4 (Thread 0x7f3b9ae0e700 (LWP 1687)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f3b9ae0daf0 in ?? ()
#2  0x00007fff4e5ff7e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 3 (Thread 0x7f3b90c5c700 (LWP 1689)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f3b90c5baf0 in ?? ()
#2  0x00007fff4e5ff7e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 2 (Thread 0x7f3b8da04700 (LWP 1697)):
#0  0x00007f3bbacdc773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f3baf2bb408 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3baf2bbc32 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3b8e4eabd6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f3baf2e09a6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3bafdc8edc in start_thread (arg=0x7f3b8da04700) at pthread_create.c:304
#6  0x00007f3bbace889d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f3bbb401780 (LWP 1685)):
[KCrash Handler]
#6  0x00000000053acf28 in ?? ()
#7  0x00007f3ba1b8ba96 in TaskGroupItem::~TaskGroupItem (this=0x68f2540, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007f3ba1b8bb49 in TaskGroupItem::~TaskGroupItem (this=0x68f2540, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#9  0x00007f3bb7ec1a28 in QObject::event (this=0x68f2540, e=<optimized out>) at kernel/qobject.cpp:1200
#10 0x00007f3bb787ad2b in QGraphicsWidget::event (this=0x68f2540, event=0x40369f0) at graphicsview/qgraphicswidget.cpp:1423
#11 0x00007f3bb7260154 in notify_helper (e=0x40369f0, receiver=0x68f2540, this=0x24944d0) at kernel/qapplication.cpp:4467
#12 QApplicationPrivate::notify_helper (this=0x24944d0, receiver=0x68f2540, e=0x40369f0) at kernel/qapplication.cpp:4439
#13 0x00007f3bb7264fc1 in QApplication::notify (this=0x2483b60, receiver=0x68f2540, e=0x40369f0) at kernel/qapplication.cpp:4346
#14 0x00007f3bb8b59de6 in KApplication::notify (this=0x2483b60, receiver=0x68f2540, event=0x40369f0) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007f3bb7eaab5c in QCoreApplication::notifyInternal (this=0x2483b60, receiver=0x68f2540, event=0x40369f0) at kernel/qcoreapplication.cpp:731
#16 0x00007f3bb7eae57f in sendEvent (event=0x40369f0, receiver=0x68f2540) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x2412430) at kernel/qcoreapplication.cpp:1372
#18 0x00007f3bb7eae824 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1015
#19 0x00007f3bbafe7093 in kdemain (argc=1, argv=0x7fff4e4f3968) at ../../../../plasma/desktop/shell/main.cpp:120
#20 0x00007f3bbac2830d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff4e4f3968, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4e4f3958) at libc-start.c:226
#21 0x0000000000400671 in _start ()

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

Possible duplicates by query: bug 279613, bug 279335, bug 279334, bug 279243, bug 279200.

Reported using DrKonqi