Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3) (Compiled from sources)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic x86_64
Distribution: Ubuntu 11.10

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

Everytime i load any software it just crash and reload again. I really don't have a fixed application, it crash with me like 5 to 6 times a day. 

I have nvidia graphic card it could be realated ???

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f9e73bc47c0 (LWP 2471))]

Thread 2 (Thread 0x7f9e4ed85700 (LWP 2473)):
#0  0x00007f9e734a8773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f9e67a32f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9e67a33429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9e70699f3e in QEventDispatcherGlib::processEvents (this=0x14f4810, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f9e7066dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f9e7066def7 in QEventLoop::exec (this=0x7f9e4ed84cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f9e7058527f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f9e70650cbf in QInotifyFileSystemWatcherEngine::run (this=0x14f3000) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f9e70587d05 in QThreadPrivate::start (arg=0x14f3000) at thread/qthread_unix.cpp:331
#9  0x00007f9e64d4c56c in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#10 0x00007f9e6853fefc in start_thread (arg=0x7f9e4ed85700) at pthread_create.c:304
#11 0x00007f9e734b489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f9e73bc47c0 (LWP 2471)):
[KCrash Handler]
#6  isNull (this=0x330031ae40) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#7  operator! (this=0x330031ae40) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#8  TaskManager::TaskItem::task (this=0x21f44d0) at ../../../libs/taskmanager/taskitem.cpp:113
#9  0x00007f9e576eb112 in WindowTaskItem::publishIconGeometry (this=0x22b5c70) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#10 0x00007f9e576f9b7c in AbstractTaskItem::timerEvent (this=0x22b5c70, event=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#11 0x00007f9e70685789 in QObject::event (this=0x22b5c70, e=<optimized out>) at kernel/qobject.cpp:1181
#12 0x00007f9e7003d89b in QGraphicsWidget::event (this=0x22b5c70, event=0x7fffd3cd37e0) at graphicsview/qgraphicswidget.cpp:1455
#13 0x00007f9e6fa1f424 in notify_helper (e=0x7fffd3cd37e0, receiver=0x22b5c70, this=0xab12f0) at kernel/qapplication.cpp:4486
#14 QApplicationPrivate::notify_helper (this=0xab12f0, receiver=0x22b5c70, e=0x7fffd3cd37e0) at kernel/qapplication.cpp:4458
#15 0x00007f9e6fa24291 in QApplication::notify (this=0xaa1f20, receiver=0x22b5c70, e=0x7fffd3cd37e0) at kernel/qapplication.cpp:4365
#16 0x00007f9e7131d126 in KApplication::notify (this=0xaa1f20, receiver=0x22b5c70, event=0x7fffd3cd37e0) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007f9e7066eafc in QCoreApplication::notifyInternal (this=0xaa1f20, receiver=0x22b5c70, event=0x7fffd3cd37e0) at kernel/qcoreapplication.cpp:787
#18 0x00007f9e7069bd62 in sendEvent (event=0x7fffd3cd37e0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QTimerInfoList::activateTimers (this=0xab7170) at kernel/qeventdispatcher_unix.cpp:603
#20 0x00007f9e70699538 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#21 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#22 0x00007f9e67a32a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f9e67a33258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f9e67a33429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f9e70699ed6 in QEventDispatcherGlib::processEvents (this=0xa00f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#26 0x00007f9e6fac707e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007f9e7066dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007f9e7066def7 in QEventLoop::exec (this=0x7fffd3cd3a70, flags=...) at kernel/qeventloop.cpp:201
#29 0x00007f9e70672789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#30 0x00007f9e737b31a3 in kdemain (argc=1, argv=0x7fffd3cd3e58) at ../../../../plasma/desktop/shell/main.cpp:120
#31 0x00007f9e733f430d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffd3cd3e58, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffd3cd3e48) at libc-start.c:226
#32 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 272495.

Possible duplicates by query: bug 292079, bug 292063, bug 292051, bug 292049, bug 292043.

Reported using DrKonqi