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:
When I was closing Firefox.  Consequently the Dolphin up border moved to the top of the screen.
- Custom settings of the application:

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb1eabb20 (LWP 2010))]

Thread 4 (Thread 0xa9f2ab70 (LWP 2011)):
#0  0xb7733424 in __kernel_vsyscall ()
#1  0xb75e540e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2ed634b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2ec7896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2ec7c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb643fb37 in QEventDispatcherGlib::processEvents (this=0xa01f5a8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0xb64101dd in QEventLoop::processEvents (this=0xa9f2a2a0, flags=...) at kernel/qeventloop.cpp:149
#7  0xb6410421 in QEventLoop::exec (this=0xa9f2a2a0, flags=...) at kernel/qeventloop.cpp:201
#8  0xb631390b in QThread::exec (this=0xa01b900) at thread/qthread.cpp:498
#9  0xb63f0e2d in QInotifyFileSystemWatcherEngine::run (this=0xa01b900) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb63167b3 in QThreadPrivate::start (arg=0xa01b900) at thread/qthread_unix.cpp:331
#11 0xb2fe1d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb75f40ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xa8c1cb70 (LWP 2016)):
#0  0xb7733424 in __kernel_vsyscall ()
#1  0xb75e540e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2ed634b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2ec7896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2ec7f9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xa94fccea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb2eee5f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb2fe1d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0xb75f40ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xa75feb70 (LWP 2019)):
#0  0xb2fe4d44 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb7601f54 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2ec6e70 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2ec78f0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2ec7c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb643fb37 in QEventDispatcherGlib::processEvents (this=0xa227328, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0xb64101dd in QEventLoop::processEvents (this=0xa75fe2a0, flags=...) at kernel/qeventloop.cpp:149
#7  0xb6410421 in QEventLoop::exec (this=0xa75fe2a0, flags=...) at kernel/qeventloop.cpp:201
#8  0xb631390b in QThread::exec (this=0xa7e59470) at thread/qthread.cpp:498
#9  0xb63f0e2d in QInotifyFileSystemWatcherEngine::run (this=0xa7e59470) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb63167b3 in QThreadPrivate::start (arg=0xa7e59470) at thread/qthread_unix.cpp:331
#11 0xb2fe1d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb75f40ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb1eabb20 (LWP 2010)):
[KCrash Handler]
#7  operator== (value=0, this=0x9) at /usr/include/qt4/QtCore/qbasicatomic.h:70
#8  isNull (this=0xa68bc78) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#9  operator! (this=0xa68bc78) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#10 TaskManager::TaskItem::task (this=0xa6ff9a0) at ../../../libs/taskmanager/taskitem.cpp:113
#11 0xb0b10662 in WindowTaskItem::publishIconGeometry (this=0xad16e50) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#12 0xb0b21688 in AbstractTaskItem::timerEvent (this=0xad16e50, event=0xbfb0363c) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#13 0xb6429994 in QObject::event (this=0xad16e50, e=0xbfb0363c) at kernel/qobject.cpp:1181
#14 0xb5ffbbd4 in QGraphicsWidget::event (this=0xad16e50, event=0xbfb0363c) at graphicsview/qgraphicswidget.cpp:1455
#15 0xb593cd54 in notify_helper (e=0xbfb0363c, receiver=0xad16e50, this=0x983eb98) at kernel/qapplication.cpp:4486
#16 QApplicationPrivate::notify_helper (this=0x983eb98, receiver=0xad16e50, e=0xbfb0363c) at kernel/qapplication.cpp:4458
#17 0xb5942103 in QApplication::notify (this=0xbfb0363c, receiver=0xad16e50, e=0xbfb0363c) at kernel/qapplication.cpp:3886
#18 0xb6a76681 in KApplication::notify (this=0x982f150, receiver=0xad16e50, event=0xbfb0363c) at ../../kdeui/kernel/kapplication.cpp:311
#19 0xb641119e in QCoreApplication::notifyInternal (this=0x982f150, receiver=0xad16e50, event=0xbfb0363c) at kernel/qcoreapplication.cpp:787
#20 0xb6441c10 in sendEvent (event=0xbfb0363c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#21 QTimerInfoList::activateTimers (this=0x983cec4) at kernel/qeventdispatcher_unix.cpp:603
#22 0xb643f155 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#23 idleTimerSourceDispatch (source=0x983cef8) at kernel/qeventdispatcher_glib.cpp:231
#24 0xb2ec725f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0xb2ec7990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#26 0xb2ec7c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0xb643fada in QEventDispatcherGlib::processEvents (this=0x97f0218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#28 0xb59f4e3a in QGuiEventDispatcherGlib::processEvents (this=0x97f0218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#29 0xb64101dd in QEventLoop::processEvents (this=0xbfb038b4, flags=...) at kernel/qeventloop.cpp:149
#30 0xb6410421 in QEventLoop::exec (this=0xbfb038b4, flags=...) at kernel/qeventloop.cpp:201
#31 0xb641519d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#32 0xb593a8f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#33 0xb76e818b in kdemain (argc=1, argv=0xbfb03ab4) at ../../../../plasma/desktop/shell/main.cpp:120
#34 0x0804850b in main (argc=1, argv=0xbfb03ab4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 290810, bug 290717, bug 290686, bug 290664, bug 290597.

Reported using DrKonqi