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 i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
Note: This started after a normal update
- Starting Dolphin
- Starting Thunderbird
- Starting any other application

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7875b20 (LWP 1545))]

Thread 3 (Thread 0xafe91b70 (LWP 1551)):
#0  0x0668ad0b in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x00709f54 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0x02e0b87f in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x02e0c637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x02e0cc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x05081b37 in QEventDispatcherGlib::processEvents (this=0x9e10080, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x050521dd in QEventLoop::processEvents (this=0xafe912a0, flags=...) at kernel/qeventloop.cpp:149
#7  0x05052421 in QEventLoop::exec (this=0xafe912a0, flags=...) at kernel/qeventloop.cpp:201
#8  0x04f5590b in QThread::exec (this=0x9dcd210) at thread/qthread.cpp:498
#9  0x05032e2d in QInotifyFileSystemWatcherEngine::run (this=0x9dcd210) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x04f587b3 in QThreadPrivate::start (arg=0x9dcd210) at thread/qthread_unix.cpp:331
#11 0x06687d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x006fc0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xaf412b70 (LWP 1552)):
#0  0x00524416 in __kernel_vsyscall ()
#1  0x006ed40e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x02e1b34b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x02e0c896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x02e0cc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x05081b37 in QEventDispatcherGlib::processEvents (this=0x9fa1df8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x050521dd in QEventLoop::processEvents (this=0xaf4122a0, flags=...) at kernel/qeventloop.cpp:149
#7  0x05052421 in QEventLoop::exec (this=0xaf4122a0, flags=...) at kernel/qeventloop.cpp:201
#8  0x04f5590b in QThread::exec (this=0x9fa0a10) at thread/qthread.cpp:498
#9  0x05032e2d in QInotifyFileSystemWatcherEngine::run (this=0x9fa0a10) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x04f587b3 in QThreadPrivate::start (arg=0x9fa0a10) at thread/qthread_unix.cpp:331
#11 0x06687d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x006fc0ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb7875b20 (LWP 1545)):
[KCrash Handler]
#7  isNull (this=0x1) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#8  operator! (this=0x1) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#9  TaskManager::TaskItem::task (this=0x962b5b8) at ../../../libs/taskmanager/taskitem.cpp:113
#10 0x0415b662 in WindowTaskItem::publishIconGeometry (this=0x9e022c8) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#11 0x0416c688 in AbstractTaskItem::timerEvent (this=0x9e022c8, event=0xbf99e62c) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#12 0x0506b994 in QObject::event (this=0x9e022c8, e=0xbf99e62c) at kernel/qobject.cpp:1181
#13 0x06264bd4 in QGraphicsWidget::event (this=0x9e022c8, event=0xbf99e62c) at graphicsview/qgraphicswidget.cpp:1455
#14 0x05ba5d54 in notify_helper (e=0xbf99e62c, receiver=0x9e022c8, this=0x94aba98) at kernel/qapplication.cpp:4486
#15 QApplicationPrivate::notify_helper (this=0x94aba98, receiver=0x9e022c8, e=0xbf99e62c) at kernel/qapplication.cpp:4458
#16 0x05bab103 in QApplication::notify (this=0xbf99e62c, receiver=0x9e022c8, e=0xbf99e62c) at kernel/qapplication.cpp:3886
#17 0x0115f681 in KApplication::notify (this=0x949b7d8, receiver=0x9e022c8, event=0xbf99e62c) at ../../kdeui/kernel/kapplication.cpp:311
#18 0x0505319e in QCoreApplication::notifyInternal (this=0x949b7d8, receiver=0x9e022c8, event=0xbf99e62c) at kernel/qcoreapplication.cpp:787
#19 0x05083c10 in sendEvent (event=0xbf99e62c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QTimerInfoList::activateTimers (this=0x94a98c4) at kernel/qeventdispatcher_unix.cpp:603
#21 0x05081122 in timerSourceDispatch (source=0x94a9890) at kernel/qeventdispatcher_glib.cpp:184
#22 0x02e0c25f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#23 0x02e0c990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0x02e0cc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0x05081ada in QEventDispatcherGlib::processEvents (this=0x945c218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#26 0x05c5de3a in QGuiEventDispatcherGlib::processEvents (this=0x945c218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x050521dd in QEventLoop::processEvents (this=0xbf99e8a4, flags=...) at kernel/qeventloop.cpp:149
#28 0x05052421 in QEventLoop::exec (this=0xbf99e8a4, flags=...) at kernel/qeventloop.cpp:201
#29 0x0505719d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#30 0x05ba38f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#31 0x0097f18b in kdemain (argc=1, argv=0xbf99eaa4) at ../../../../plasma/desktop/shell/main.cpp:120
#32 0x0804850b in main (argc=1, argv=0xbf99eaa4) at plasma-desktop_dummy.cpp:3

This bug may be a duplicate of or related to bug 289435.

Possible duplicates by query: bug 289940, bug 289873, bug 289826, bug 289757, bug 289752.

Reported using DrKonqi