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 closed a stack of Dolphin tabs in the bottom bar, using right-click and "close".

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb2010b20 (LWP 2059))]

Thread 3 (Thread 0xab37bb70 (LWP 2060)):
#0  0xb302bfa4 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb302c8f0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb302cc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb65a4b37 in QEventDispatcherGlib::processEvents (this=0x99429b8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0xb65751dd in QEventLoop::processEvents (this=0xab37b2a0, flags=...) at kernel/qeventloop.cpp:149
#5  0xb6575421 in QEventLoop::exec (this=0xab37b2a0, flags=...) at kernel/qeventloop.cpp:201
#6  0xb647890b in QThread::exec (this=0x99401c8) at thread/qthread.cpp:498
#7  0xb6555e2d in QInotifyFileSystemWatcherEngine::run (this=0x99401c8) at io/qfilesystemwatcher_inotify.cpp:248
#8  0xb647b7b3 in QThreadPrivate::start (arg=0x99401c8) at thread/qthread_unix.cpp:331
#9  0xb3146d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#10 0xb77590ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xa98dab70 (LWP 2061)):
#0  0xb789e0c2 in ?? () from /lib/ld-linux.so.2
#1  0xb774a40e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb303b34b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb302c896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb302cc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb65a4b37 in QEventDispatcherGlib::processEvents (this=0x979d4a0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0xb65751dd in QEventLoop::processEvents (this=0xa98da2a0, flags=...) at kernel/qeventloop.cpp:149
#7  0xb6575421 in QEventLoop::exec (this=0xa98da2a0, flags=...) at kernel/qeventloop.cpp:201
#8  0xb647890b in QThread::exec (this=0x93da130) at thread/qthread.cpp:498
#9  0xb6555e2d in QInotifyFileSystemWatcherEngine::run (this=0x93da130) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb647b7b3 in QThreadPrivate::start (arg=0x93da130) at thread/qthread_unix.cpp:331
#11 0xb3146d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb77590ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb2010b20 (LWP 2059)):
[KCrash Handler]
#7  isNull (this=0x650074) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#8  operator! (this=0x650074) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#9  TaskManager::TaskItem::task (this=0xa444d18) at ../../../libs/taskmanager/taskitem.cpp:113
#10 0xb0b73662 in WindowTaskItem::publishIconGeometry (this=0xa32ccd0) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:120
#11 0xb0b84688 in AbstractTaskItem::timerEvent (this=0xa32ccd0, event=0xbf91a67c) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#12 0xb658e994 in QObject::event (this=0xa32ccd0, e=0xbf91a67c) at kernel/qobject.cpp:1181
#13 0xb6160bd4 in QGraphicsWidget::event (this=0xa32ccd0, event=0xbf91a67c) at graphicsview/qgraphicswidget.cpp:1455
#14 0xb5aa1d54 in notify_helper (e=0xbf91a67c, receiver=0xa32ccd0, this=0x927c8b0) at kernel/qapplication.cpp:4486
#15 QApplicationPrivate::notify_helper (this=0x927c8b0, receiver=0xa32ccd0, e=0xbf91a67c) at kernel/qapplication.cpp:4458
#16 0xb5aa7103 in QApplication::notify (this=0xbf91a67c, receiver=0xa32ccd0, e=0xbf91a67c) at kernel/qapplication.cpp:3886
#17 0xb6bdb681 in KApplication::notify (this=0x92719b8, receiver=0xa32ccd0, event=0xbf91a67c) at ../../kdeui/kernel/kapplication.cpp:311
#18 0xb657619e in QCoreApplication::notifyInternal (this=0x92719b8, receiver=0xa32ccd0, event=0xbf91a67c) at kernel/qcoreapplication.cpp:787
#19 0xb65a6c10 in sendEvent (event=0xbf91a67c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QTimerInfoList::activateTimers (this=0x927ecc4) at kernel/qeventdispatcher_unix.cpp:603
#21 0xb65a4122 in timerSourceDispatch (source=0x927ec90) at kernel/qeventdispatcher_glib.cpp:184
#22 0xb302c25f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#23 0xb302c990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0xb302cc2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0xb65a4ada in QEventDispatcherGlib::processEvents (this=0x9233218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#26 0xb5b59e3a in QGuiEventDispatcherGlib::processEvents (this=0x9233218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#27 0xb65751dd in QEventLoop::processEvents (this=0xbf91a8f4, flags=...) at kernel/qeventloop.cpp:149
#28 0xb6575421 in QEventLoop::exec (this=0xbf91a8f4, flags=...) at kernel/qeventloop.cpp:201
#29 0xb657a19d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#30 0xb5a9f8f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#31 0xb785218b in kdemain (argc=1, argv=0xbf91aaf4) at ../../../../plasma/desktop/shell/main.cpp:120
#32 0x0804850b in main (argc=1, argv=0xbf91aaf4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 291620, bug 291619, bug 291610, bug 291600, bug 291577.

Reported using DrKonqi