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 reading something in Firefox when I saw the Crash Reporting Assistant appear on the toolbar saying that Plasma Workspaces had crashed. I did not notice any other behavior on my desktop that would have indicated to me that Plasma had crashed.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb05b5720 (LWP 2142))]

Thread 4 (Thread 0xa9a44b70 (LWP 2143)):
#0  0xb305097a in pthread_getspecific () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb637fa00 in get_thread_data () at thread/qthread_unix.cpp:172
#2  QThreadData::current () at thread/qthread_unix.cpp:210
#3  0xb64a92f7 in postEventSourcePrepare (s=0xa1291a8, timeout=0x0) at kernel/qeventdispatcher_glib.cpp:254
#4  0xb64a9367 in postEventSourceCheck (source=0xa1291a8) at kernel/qeventdispatcher_glib.cpp:270
#5  0xb2f30f24 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb2f318f0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb2f31c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb64a9b37 in QEventDispatcherGlib::processEvents (this=0xa12ae08, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#9  0xb647a1dd in QEventLoop::processEvents (this=0xa9a441f0, flags=...) at kernel/qeventloop.cpp:149
#10 0xb647a421 in QEventLoop::exec (this=0xa9a441f0, flags=...) at kernel/qeventloop.cpp:201
#11 0xb637d90b in QThread::exec (this=0xa126678) at thread/qthread.cpp:498
#12 0xb645ae2d in QInotifyFileSystemWatcherEngine::run (this=0xa126678) at io/qfilesystemwatcher_inotify.cpp:248
#13 0xb63807b3 in QThreadPrivate::start (arg=0xa126678) at thread/qthread_unix.cpp:331
#14 0xb269b9cd in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#15 0xb765e0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xa7dd2b70 (LWP 2144)):
#0  0xb2febd10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb63d77d5 in do_gettime (frac=0xa7dd1f60, sec=0xa7dd1f58) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb64aa4b6 in QTimerInfoList::updateCurrentTime (this=0xa2c11bc) at kernel/qeventdispatcher_unix.cpp:339
#4  0xb64aa80a in QTimerInfoList::timerWait (this=0xa2c11bc, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb64a9053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xa7dd206c) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb64a90ed in timerSourcePrepare (source=0xa2c1188, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb2f3088c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb2f31637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb2f31c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb64a9b37 in QEventDispatcherGlib::processEvents (this=0xa2c0230, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0xb647a1dd in QEventLoop::processEvents (this=0xa7dd21f0, flags=...) at kernel/qeventloop.cpp:149
#12 0xb647a421 in QEventLoop::exec (this=0xa7dd21f0, flags=...) at kernel/qeventloop.cpp:201
#13 0xb637d90b in QThread::exec (this=0xa299e90) at thread/qthread.cpp:498
#14 0xb645ae2d in QInotifyFileSystemWatcherEngine::run (this=0xa299e90) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb63807b3 in QThreadPrivate::start (arg=0xa299e90) at thread/qthread_unix.cpp:331
#16 0xb269b9cd in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#17 0xb765e0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xa6020b70 (LWP 2151)):
#0  0xb304ddbd in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb766bf14 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2f310c3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2f31990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2f31f9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xa68e2cea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb2f585f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb269b9cd in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#8  0xb765e0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb05b5720 (LWP 2142)):
[KCrash Handler]
#7  operator== (value=0, this=0x9) at /usr/include/qt4/QtCore/qbasicatomic.h:70
#8  isNull (this=0xb2dd1c0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#9  operator! (this=0xb2dd1c0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#10 TaskManager::TaskItem::task (this=0xa2aefc0) at ../../../libs/taskmanager/taskitem.cpp:113
#11 0xaf1a0662 in WindowTaskItem::publishIconGeometry (this=0xac2b158) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#12 0xaf1b1688 in AbstractTaskItem::timerEvent (this=0xac2b158, event=0xbfdbad7c) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#13 0xb6493994 in QObject::event (this=0xac2b158, e=0xbfdbad7c) at kernel/qobject.cpp:1181
#14 0xb6065bd4 in QGraphicsWidget::event (this=0xac2b158, event=0xbfdbad7c) at graphicsview/qgraphicswidget.cpp:1455
#15 0xb59a6d54 in notify_helper (e=0xbfdbad7c, receiver=0xac2b158, this=0x9b2f320) at kernel/qapplication.cpp:4486
#16 QApplicationPrivate::notify_helper (this=0x9b2f320, receiver=0xac2b158, e=0xbfdbad7c) at kernel/qapplication.cpp:4458
#17 0xb59ac103 in QApplication::notify (this=0xbfdbad7c, receiver=0xac2b158, e=0xbfdbad7c) at kernel/qapplication.cpp:3886
#18 0xb6ae0681 in KApplication::notify (this=0x9b268e0, receiver=0xac2b158, event=0xbfdbad7c) at ../../kdeui/kernel/kapplication.cpp:311
#19 0xb647b19e in QCoreApplication::notifyInternal (this=0x9b268e0, receiver=0xac2b158, event=0xbfdbad7c) at kernel/qcoreapplication.cpp:787
#20 0xb64abc10 in sendEvent (event=0xbfdbad7c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#21 QTimerInfoList::activateTimers (this=0x9b32134) at kernel/qeventdispatcher_unix.cpp:603
#22 0xb64a9155 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#23 idleTimerSourceDispatch (source=0x9b32168) at kernel/qeventdispatcher_glib.cpp:231
#24 0xb2f3125f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0xb2f31990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0xb2f31c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0xb64a9ada in QEventDispatcherGlib::processEvents (this=0x9a9c218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#28 0xb5a5ee3a in QGuiEventDispatcherGlib::processEvents (this=0x9a9c218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#29 0xb647a1dd in QEventLoop::processEvents (this=0xbfdbaff4, flags=...) at kernel/qeventloop.cpp:149
#30 0xb647a421 in QEventLoop::exec (this=0xbfdbaff4, flags=...) at kernel/qeventloop.cpp:201
#31 0xb647f19d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#32 0xb59a48f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#33 0xb775318b in kdemain (argc=1, argv=0xbfdbb1f4) at ../../../../plasma/desktop/shell/main.cpp:120
#34 0x0804850b in main (argc=1, argv=0xbfdbb1f4) at plasma-desktop_dummy.cpp:3

This bug may be a duplicate of or related to bug 288866.

Possible duplicates by query: bug 289392, bug 288866, bug 288759, bug 288635, bug 288553.

Reported using DrKonqi