Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic-pae i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
I was just closing a Dolphin window.
- Custom settings of the application:
I have some "plasmoides" and many desktop effetcs and I run nvidia drivers.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Outil de gestion de fenêtres Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb063d720 (LWP 1540))]

Thread 4 (Thread 0xa9868b70 (LWP 1541)):
#0  0xb7823424 in __kernel_vsyscall ()
#1  0xb76d740e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2fc834b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2fb9896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2fb9c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb6531b37 in QEventDispatcherGlib::processEvents (this=0x9b02708, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0xb65021dd in QEventLoop::processEvents (this=0xa98681f0, flags=...) at kernel/qeventloop.cpp:149
#7  0xb6502421 in QEventLoop::exec (this=0xa98681f0, flags=...) at kernel/qeventloop.cpp:201
#8  0xb640590b in QThread::exec (this=0x9aff7e0) at thread/qthread.cpp:498
#9  0xb64e2e2d in QInotifyFileSystemWatcherEngine::run (this=0x9aff7e0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb64087b3 in QThreadPrivate::start (arg=0x9aff7e0) at thread/qthread_unix.cpp:331
#11 0xb27239cd in ?? () from /usr/lib/nvidia-current/libGL.so.1
#12 0xb76e60ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xa7d8fb70 (LWP 1542)):
#0  0xb2fb9771 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb2fb9c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb6531b37 in QEventDispatcherGlib::processEvents (this=0x9c5fa40, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#3  0xb65021dd in QEventLoop::processEvents (this=0xa7d8f1f0, flags=...) at kernel/qeventloop.cpp:149
#4  0xb6502421 in QEventLoop::exec (this=0xa7d8f1f0, flags=...) at kernel/qeventloop.cpp:201
#5  0xb640590b in QThread::exec (this=0x973c6f8) at thread/qthread.cpp:498
#6  0xb64e2e2d in QInotifyFileSystemWatcherEngine::run (this=0x973c6f8) at io/qfilesystemwatcher_inotify.cpp:248
#7  0xb64087b3 in QThreadPrivate::start (arg=0x973c6f8) at thread/qthread_unix.cpp:331
#8  0xb27239cd in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0xb76e60ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xa6341b70 (LWP 1548)):
#0  0xb7823424 in __kernel_vsyscall ()
#1  0xb76d740e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2fc834b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2fb9896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2fb9f9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xa6c21cea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb2fe05f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb27239cd in ?? () from /usr/lib/nvidia-current/libGL.so.1
#8  0xb76e60ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb063d720 (LWP 1540)):
[KCrash Handler]
#7  operator== (value=0, this=0x9) at /usr/include/qt4/QtCore/qbasicatomic.h:70
#8  isNull (this=0xa722788) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#9  operator! (this=0xa722788) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#10 TaskManager::TaskItem::task (this=0xa81ca00) at ../../../libs/taskmanager/taskitem.cpp:113
#11 0xaf147662 in WindowTaskItem::publishIconGeometry (this=0xa139588) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#12 0xaf158688 in AbstractTaskItem::timerEvent (this=0xa139588, event=0xbfe6962c) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#13 0xb651b994 in QObject::event (this=0xa139588, e=0xbfe6962c) at kernel/qobject.cpp:1181
#14 0xb60edbd4 in QGraphicsWidget::event (this=0xa139588, event=0xbfe6962c) at graphicsview/qgraphicswidget.cpp:1455
#15 0xb5a2ed54 in notify_helper (e=0xbfe6962c, receiver=0xa139588, this=0x9502e28) at kernel/qapplication.cpp:4486
#16 QApplicationPrivate::notify_helper (this=0x9502e28, receiver=0xa139588, e=0xbfe6962c) at kernel/qapplication.cpp:4458
#17 0xb5a34103 in QApplication::notify (this=0xbfe6962c, receiver=0xa139588, e=0xbfe6962c) at kernel/qapplication.cpp:3886
#18 0xb6b68681 in KApplication::notify (this=0x94f66a8, receiver=0xa139588, event=0xbfe6962c) at ../../kdeui/kernel/kapplication.cpp:311
#19 0xb650319e in QCoreApplication::notifyInternal (this=0x94f66a8, receiver=0xa139588, event=0xbfe6962c) at kernel/qcoreapplication.cpp:787
#20 0xb6533c10 in sendEvent (event=0xbfe6962c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#21 QTimerInfoList::activateTimers (this=0x9506d2c) at kernel/qeventdispatcher_unix.cpp:603
#22 0xb6531155 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#23 idleTimerSourceDispatch (source=0x9506d60) at kernel/qeventdispatcher_glib.cpp:231
#24 0xb2fb925f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0xb2fb9990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0xb2fb9c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0xb6531ada in QEventDispatcherGlib::processEvents (this=0x946e218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#28 0xb5ae6e3a in QGuiEventDispatcherGlib::processEvents (this=0x946e218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#29 0xb65021dd in QEventLoop::processEvents (this=0xbfe698a4, flags=...) at kernel/qeventloop.cpp:149
#30 0xb6502421 in QEventLoop::exec (this=0xbfe698a4, flags=...) at kernel/qeventloop.cpp:201
#31 0xb650719d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#32 0xb5a2c8f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#33 0xb77d818b in kdemain (argc=1, argv=0xbfe69aa4) at ../../../../plasma/desktop/shell/main.cpp:120
#34 0x0804850b in main (argc=1, argv=0xbfe69aa4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 290300, bug 290280, bug 290218, bug 290213, bug 290185.

Reported using DrKonqi