Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed
Was preparing the system to shutdown by closing all window. After I had closed all I noticed that Ksysguard hadn't appear in the launcher area, although in the settings I'd marked that it should. I opened it, closed it, opened and unchecked 'Show a launcher...' and after that Plasma crashed.
- Unusual behavior I noticed:
The application hadn't appear in the launcher area whereas it should have.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f2e2571a7a0 (LWP 1673))]

Thread 8 (Thread 0x7f2e042b0700 (LWP 1674)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f2e042afad0 in ?? ()
#2  0x00007fff6eae57e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 7 (Thread 0x7f2e017ab700 (LWP 1675)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f2e017aaad0 in ?? ()
#2  0x00007fff6eae57e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 6 (Thread 0x7f2df79d5700 (LWP 1684)):
#0  0x00007f2e24ffd773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f2e19588f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2e19589792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2df84b3516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f2e195ae2b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f2e1a095efc in start_thread (arg=0x7f2df79d5700) at pthread_create.c:304
#6  0x00007f2e2500989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f2df5750700 (LWP 3421)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f2e220de1ab in wait (time=18446744073709551615, this=0x19580e0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x190bb10, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f2e1ded8864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x19dc870, th=0x23c0510) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f2e1dedae0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x190bbd0, th=0x23c0510) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f2e1ded9ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f2df574fe00, parent=0x19dc870, th=0x23c0510) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f2e1ded9d5b in ThreadWeaver::Thread::run (this=0x23c0510) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f2e220ddd05 in QThreadPrivate::start (arg=0x23c0510) at thread/qthread_unix.cpp:331
#8  0x00007f2e1a095efc in start_thread (arg=0x7f2df5750700) at pthread_create.c:304
#9  0x00007f2e2500989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f2dfa205700 (LWP 3422)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f2e220de1ab in wait (time=18446744073709551615, this=0x19580e0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x190bb10, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f2e1ded8864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x19dc870, th=0x7f2dfc01c7c0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f2e1dedae0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x190bbd0, th=0x7f2dfc01c7c0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f2e1dedae24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x190bbd0, th=0x7f2dfc01c7c0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f2e1ded9ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f2dfa204e00, parent=0x19dc870, th=0x7f2dfc01c7c0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f2e1ded9d5b in ThreadWeaver::Thread::run (this=0x7f2dfc01c7c0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f2e220ddd05 in QThreadPrivate::start (arg=0x7f2dfc01c7c0) at thread/qthread_unix.cpp:331
#9  0x00007f2e1a095efc in start_thread (arg=0x7f2dfa205700) at pthread_create.c:304
#10 0x00007f2e2500989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f2df81d6700 (LWP 3423)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f2e220de1ab in wait (time=18446744073709551615, this=0x19580e0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x190bb10, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f2e1ded8864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x19dc870, th=0x11d1320) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f2e1dedae0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x190bbd0, th=0x11d1320) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f2e1ded9ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f2df81d5e00, parent=0x19dc870, th=0x11d1320) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f2e1ded9d5b in ThreadWeaver::Thread::run (this=0x11d1320) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f2e220ddd05 in QThreadPrivate::start (arg=0x11d1320) at thread/qthread_unix.cpp:331
#8  0x00007f2e1a095efc in start_thread (arg=0x7f2df81d6700) at pthread_create.c:304
#9  0x00007f2e2500989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f2deb8ef700 (LWP 3424)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f2e220de1ab in wait (time=18446744073709551615, this=0x19580e0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x190bb10, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f2e1ded8864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x19dc870, th=0x1fb8c10) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f2e1dedae0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x190bbd0, th=0x1fb8c10) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f2e1ded9ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f2deb8eee00, parent=0x19dc870, th=0x1fb8c10) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f2e1ded9d5b in ThreadWeaver::Thread::run (this=0x1fb8c10) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f2e220ddd05 in QThreadPrivate::start (arg=0x1fb8c10) at thread/qthread_unix.cpp:331
#8  0x00007f2e1a095efc in start_thread (arg=0x7f2deb8ef700) at pthread_create.c:304
#9  0x00007f2e2500989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f2e2571a7a0 (LWP 1673)):
[KCrash Handler]
#6  TaskManager::Task::classClass (this=0x0) at ../../../libs/taskmanager/task_x11.cpp:74
#7  0x00007f2e0bbd4ec5 in TaskManager::LauncherItem::associateItemIfMatches (this=0x1d4faa0, item=0x31437f0) at ../../../libs/taskmanager/launcheritem.cpp:91
#8  0x00007f2e0bbce27b in TaskManager::GroupManager::addLauncher (this=0x15ab6e0, url=..., icon=<optimized out>, name=<optimized out>, genericName=...) at ../../../libs/taskmanager/groupmanager.cpp:634
#9  0x00007f2e0bbde44f in TaskManager::ToggleLauncherActionImpl::toggleLauncher (this=0x1ea52d0) at ../../../libs/taskmanager/taskactions.cpp:379
#10 0x00007f2e0bbde5c0 in TaskManager::ToggleLauncherActionImpl::qt_metacall (this=0x1ea52d0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=<optimized out>) at ./taskactions_p.moc:220
#11 0x00007f2e221d7eba in QMetaObject::activate (sender=0x1ea52d0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff6ea64530) at kernel/qobject.cpp:3278
#12 0x00007f2e2156eb62 in QAction::triggered (this=<optimized out>, _t1=true) at .moc/release-shared/moc_qaction.cpp:263
#13 0x00007f2e2156ed4f in QAction::activate (this=0x1ea52d0, event=<optimized out>) at kernel/qaction.cpp:1257
#14 0x00007f2e219a9609 in QMenuPrivate::activateCausedStack (this=0x3e10be0, causedStack=..., action=0x1ea52d0, action_e=QAction::Trigger, self=true) at widgets/qmenu.cpp:1005
#15 0x00007f2e219af252 in QMenuPrivate::activateAction (this=0x3e10be0, action=0x1ea52d0, action_e=QAction::Trigger, self=true) at widgets/qmenu.cpp:1097
#16 0x00007f2e215c5c9a in QWidget::event (this=0x1b8f770, event=0x7fff6ea64d90) at kernel/qwidget.cpp:8295
#17 0x00007f2e219b07fb in QMenu::event (this=0x1b8f770, e=0x7fff6ea64d90) at widgets/qmenu.cpp:2405
#18 0x00007f2e21575424 in notify_helper (e=0x7fff6ea64d90, receiver=0x1b8f770, this=0xe17ad0) at kernel/qapplication.cpp:4486
#19 QApplicationPrivate::notify_helper (this=0xe17ad0, receiver=0x1b8f770, e=0x7fff6ea64d90) at kernel/qapplication.cpp:4458
#20 0x00007f2e2157ac6b in QApplication::notify (this=<optimized out>, receiver=0x1b8f770, e=0x7fff6ea64d90) at kernel/qapplication.cpp:4047
#21 0x00007f2e22e73126 in KApplication::notify (this=0xe0a3b0, receiver=0x1b8f770, event=0x7fff6ea64d90) at ../../kdeui/kernel/kapplication.cpp:311
#22 0x00007f2e221c4afc in QCoreApplication::notifyInternal (this=0xe0a3b0, receiver=0x1b8f770, event=0x7fff6ea64d90) at kernel/qcoreapplication.cpp:787
#23 0x00007f2e215763f2 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#24 QApplicationPrivate::sendMouseEvent (receiver=0x1b8f770, event=0x7fff6ea64d90, alienWidget=0x0, nativeWidget=0x1b8f770, buttonDown=0x0, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#25 0x00007f2e215f6001 in QETWidget::translateMouseEvent (this=0x1b8f770, event=<optimized out>) at kernel/qapplication_x11.cpp:4502
#26 0x00007f2e215f48be in QApplication::x11ProcessEvent (this=0xe0a3b0, event=0x7fff6ea655b0) at kernel/qapplication_x11.cpp:3690
#27 0x00007f2e2161d412 in x11EventSourceDispatch (s=0xe1dbc0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#28 0x00007f2e19588a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f2e19589258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f2e19589429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f2e221efed6 in QEventDispatcherGlib::processEvents (this=0xdabf40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#32 0x00007f2e2161d07e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#33 0x00007f2e221c3cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#34 0x00007f2e221c3ef7 in QEventLoop::exec (this=0x7fff6ea65980, flags=...) at kernel/qeventloop.cpp:201
#35 0x00007f2e219ac711 in QMenu::exec (this=<optimized out>, p=..., action=0x0) at widgets/qmenu.cpp:2049
#36 0x00007f2e0be11e7d in contextMenuEvent (this=0x1ac6bd0, e=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:356
#37 WindowTaskItem::contextMenuEvent (this=0x1ac6bd0, e=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:325
#38 0x00007f2e21b3c7b5 in QGraphicsItem::sceneEvent (this=0x1ac6be0, event=0x7fff6ea66070) at graphicsview/qgraphicsitem.cpp:6700
#39 0x00007f2e21b6475e in QGraphicsScene::contextMenuEvent (this=<optimized out>, contextMenuEvent=0x7fff6ea66070) at graphicsview/qgraphicsscene.cpp:3609
#40 0x00007f2e21b73834 in QGraphicsScene::event (this=0xf848c0, event=0x7fff6ea66070) at graphicsview/qgraphicsscene.cpp:3407
#41 0x00007f2e21575424 in notify_helper (e=0x7fff6ea66070, receiver=0xf848c0, this=0xe17ad0) at kernel/qapplication.cpp:4486
#42 QApplicationPrivate::notify_helper (this=0xe17ad0, receiver=0xf848c0, e=0x7fff6ea66070) at kernel/qapplication.cpp:4458
#43 0x00007f2e2157a291 in QApplication::notify (this=0xe0a3b0, receiver=0xf848c0, e=0x7fff6ea66070) at kernel/qapplication.cpp:4365
#44 0x00007f2e22e73126 in KApplication::notify (this=0xe0a3b0, receiver=0xf848c0, event=0x7fff6ea66070) at ../../kdeui/kernel/kapplication.cpp:311
#45 0x00007f2e221c4afc in QCoreApplication::notifyInternal (this=0xe0a3b0, receiver=0xf848c0, event=0x7fff6ea66070) at kernel/qcoreapplication.cpp:787
#46 0x00007f2e21b894fb in sendEvent (event=0x7fff6ea66070, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#47 QGraphicsView::contextMenuEvent (this=0x1e845a0, event=0x7fff6ea66780) at graphicsview/qgraphicsview.cpp:2890
#48 0x00007f2e215c5a00 in QWidget::event (this=0x1e845a0, event=0x7fff6ea66780) at kernel/qwidget.cpp:8462
#49 0x00007f2e2196e4f6 in QFrame::event (this=0x1e845a0, e=0x7fff6ea66780) at widgets/qframe.cpp:557
#50 0x00007f2e21b91d3b in QGraphicsView::viewportEvent (this=0x1e845a0, event=0x7fff6ea66780) at graphicsview/qgraphicsview.cpp:2864
#51 0x00007f2e221c4c88 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x1efd7a0, event=0x7fff6ea66780) at kernel/qcoreapplication.cpp:902
#52 0x00007f2e215753ef in notify_helper (e=0x7fff6ea66780, receiver=0x1efd7a0, this=0xe17ad0) at kernel/qapplication.cpp:4482
#53 QApplicationPrivate::notify_helper (this=0xe17ad0, receiver=0x1efd7a0, e=0x7fff6ea66780) at kernel/qapplication.cpp:4458
#54 0x00007f2e2157a779 in QApplication::notify (this=<optimized out>, receiver=0x1efd7a0, e=0x7fff6ea66780) at kernel/qapplication.cpp:4126
#55 0x00007f2e22e73126 in KApplication::notify (this=0xe0a3b0, receiver=0x1efd7a0, event=0x7fff6ea66780) at ../../kdeui/kernel/kapplication.cpp:311
#56 0x00007f2e221c4afc in QCoreApplication::notifyInternal (this=0xe0a3b0, receiver=0x1efd7a0, event=0x7fff6ea66780) at kernel/qcoreapplication.cpp:787
#57 0x00007f2e215f59aa in sendSpontaneousEvent (event=0x7fff6ea66780, receiver=0x1efd7a0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#58 QETWidget::translateMouseEvent (this=0x1e845a0, event=<optimized out>) at kernel/qapplication_x11.cpp:4573
#59 0x00007f2e215f48be in QApplication::x11ProcessEvent (this=0xe0a3b0, event=0x7fff6ea66f70) at kernel/qapplication_x11.cpp:3690
#60 0x00007f2e2161d412 in x11EventSourceDispatch (s=0xe1dbc0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#61 0x00007f2e19588a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#62 0x00007f2e19589258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#63 0x00007f2e19589429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#64 0x00007f2e221efed6 in QEventDispatcherGlib::processEvents (this=0xdabf40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#65 0x00007f2e2161d07e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#66 0x00007f2e221c3cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#67 0x00007f2e221c3ef7 in QEventLoop::exec (this=0x7fff6ea67340, flags=...) at kernel/qeventloop.cpp:201
#68 0x00007f2e221c8789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#69 0x00007f2e253081a3 in kdemain (argc=1, argv=0x7fff6ea67728) at ../../../../plasma/desktop/shell/main.cpp:120
#70 0x00007f2e24f4930d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff6ea67728, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff6ea67718) at libc-start.c:226
#71 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 277033.

Possible duplicates by query: bug 285949, bug 284247, bug 281149, bug 279487, bug 276877.

Reported using DrKonqi