Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.4 (4.6.4)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-10-generic x86_64
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed: I was switching launcher to see what it was like. When trying to switch back it wouldn't and kept crashing. I'm now stuck in classic launcher mode.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f85c00017c0 (LWP 1548))]

Thread 4 (Thread 0x7f85a14eb700 (LWP 1550)):
#0  0x00007f85bf8f6f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f85b42d8104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f85b42d8639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f85bcb04446 in QEventDispatcherGlib::processEvents (this=0x24548c0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f85bcad8882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f85bcad8abc in QEventLoop::exec (this=0x7f85a14eacd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f85bc9ef924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007f85bcabac2f in QInotifyFileSystemWatcherEngine::run (this=0x2450240) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f85bc9f2175 in QThreadPrivate::start (arg=0x2450240) at thread/qthread_unix.cpp:320
#9  0x00007f85b235d853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f85b4bdbd8c in start_thread (arg=0x7f85a14eb700) at pthread_create.c:304
#11 0x00007f85bf90404d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f8595161700 (LWP 1552)):
#0  0x00007f85bf8f6f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f85b42d8104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f85b42d8639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f85bcb04446 in QEventDispatcherGlib::processEvents (this=0x2795ed0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f85bcad8882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f85bcad8abc in QEventLoop::exec (this=0x7f8595160cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f85bc9ef924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007f85bcabac2f in QInotifyFileSystemWatcherEngine::run (this=0x2795370) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f85bc9f2175 in QThreadPrivate::start (arg=0x2795370) at thread/qthread_unix.cpp:320
#9  0x00007f85b235d853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f85b4bdbd8c in start_thread (arg=0x7f8595161700) at pthread_create.c:304
#11 0x00007f85bf90404d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f8592933700 (LWP 1557)):
#0  __pthread_mutex_unlock_usercnt (mutex=0x2926618) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x2926618) at pthread_mutex_unlock.c:290
#2  0x00007f85b42d7a70 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f85b42d83a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f85b42d89f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8593a4ac44 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f85b42ff3e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f85b235d853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#8  0x00007f85b4bdbd8c in start_thread (arg=0x7f8592933700) at pthread_create.c:304
#9  0x00007f85bf90404d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f85c00017c0 (LWP 1548)):
[KCrash Handler]
#6  0x00007f85a5c454ed in Kickoff::MenuView::rowsInserted (this=0x36da060, parent=..., start=0, end=0) at ../../../../../plasma/desktop/applets/kickoff/simpleapplet/menuview.cpp:403
#7  0x00007f85a5c46034 in Kickoff::MenuView::qt_metacall (this=0x36da060, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffc40eeec0) at ./menuview.moc:93
#8  0x00007f85bcaee5f8 in QMetaObject::activate (sender=0x36dadf0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fffc40eeec0) at kernel/qobject.cpp:3287
#9  0x00007f85bcb34f34 in QAbstractItemModel::rowsInserted (this=<value optimized out>, _t1=<value optimized out>, _t2=0, _t3=0) at .moc/release-shared/moc_qabstractitemmodel.cpp:181
#10 0x00007f85bcad44e8 in QAbstractItemModel::endInsertRows (this=0x36dadf0) at kernel/qabstractitemmodel.cpp:2412
#11 0x00007f85bc43f8a3 in QStandardItemModelPrivate::rowsInserted (this=0x3706530, parent=<value optimized out>, row=<value optimized out>, count=1) at itemviews/qstandarditemmodel.cpp:558
#12 0x00007f85bc440a34 in QStandardItemPrivate::insertRows (this=0x37550e0, row=0, count=1, items=...) at itemviews/qstandarditemmodel.cpp:433
#13 0x00007f85a57c9e6f in appendRow (this=<value optimized out>, displayOrder=<value optimized out>) at /usr/include/qt4/QtGui/qstandarditemmodel.h:435
#14 init (this=<value optimized out>, displayOrder=<value optimized out>) at ../../../../../plasma/desktop/applets/kickoff/core/favoritesmodel.cpp:50
#15 Kickoff::FavoritesModel::setNameDisplayOrder (this=<value optimized out>, displayOrder=<value optimized out>) at ../../../../../plasma/desktop/applets/kickoff/core/favoritesmodel.cpp:339
#16 0x00007f858cac3601 in Kickoff::Launcher::setShowAppsByName (this=0x37c16e0, showAppsByName=true) at ../../../../../plasma/desktop/applets/kickoff/ui/launcher.cpp:649
#17 0x00007f858cac38dd in Kickoff::Launcher::setApplet (this=0x37c16e0, applet=0x3741790) at ../../../../../plasma/desktop/applets/kickoff/ui/launcher.cpp:686
#18 0x00007f858cacfe64 in LauncherApplet::configChanged (this=0x3741790) at ../../../../../plasma/desktop/applets/kickoff/applet/applet.cpp:195
#19 0x00007f858cad0a82 in LauncherApplet::saveConfigurationFromSimpleLauncher (this=0x3741790, configGroup=..., globalConfigGroup=...) at ../../../../../plasma/desktop/applets/kickoff/applet/applet.cpp:245
#20 0x00007f858cad1216 in LauncherApplet::qt_metacall (this=0x3741790, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffc40ef4c0) at ./applet.moc:87
#21 0x00007f85bcae1f4b in QMetaMethod::invoke (this=0x7fffc40ef710, object=0x3741790, connectionType=Qt::DirectConnection, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1578
#22 0x00007f85bcae2ba8 in QMetaObject::invokeMethod (obj=0x3741790, member=<value optimized out>, type=Qt::DirectConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1151
#23 0x00007f85a5c49cd8 in invokeMethod (this=0x1ea7f70) at /usr/include/qt4/QtCore/qobjectdefs.h:408
#24 MenuLauncherApplet::switchMenuStyle (this=0x1ea7f70) at ../../../../../plasma/desktop/applets/kickoff/simpleapplet/simpleapplet.cpp:385
#25 0x00007f85a5c51344 in MenuLauncherApplet::qt_metacall (this=0x1ea7f70, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffc40efc70) at ./simpleapplet.moc:131
#26 0x00007f85bcaee5f8 in QMetaObject::activate (sender=0x2265ba0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fffc40efc70) at kernel/qobject.cpp:3287
#27 0x00007f85bbe94112 in QAction::triggered (this=<value optimized out>, _t1=false) at .moc/release-shared/moc_qaction.cpp:263
#28 0x00007f85bbe942ff in QAction::activate (this=0x2265ba0, event=<value optimized out>) at kernel/qaction.cpp:1257
#29 0x00007f85bc2d6303 in QMenuPrivate::activateCausedStack (this=0x331c150, causedStack=..., action=0x2265ba0, action_e=QAction::Trigger, self=true) at widgets/qmenu.cpp:993
#30 0x00007f85bc2dc2ba in QMenuPrivate::activateAction (this=0x331c150, action=0x2265ba0, action_e=QAction::Trigger, self=true) at widgets/qmenu.cpp:1085
#31 0x00007f85bd858e2d in KMenu::mouseReleaseEvent (this=0x7fffc40f1560, e=<value optimized out>) at ../../kdeui/widgets/kmenu.cpp:458
#32 0x00007f85bbeebcb8 in QWidget::event (this=0x7fffc40f1560, event=0x7fffc40f08a0) at kernel/qwidget.cpp:8259
#33 0x00007f85bc2dd49b in QMenu::event (this=0x7fffc40f1560, e=0x7fffc40f08a0) at widgets/qmenu.cpp:2415
#34 0x00007f85bbe9a9e4 in QApplicationPrivate::notify_helper (this=0x1d51580, receiver=0x7fffc40f1560, e=0x7fffc40f08a0) at kernel/qapplication.cpp:4462
#35 0x00007f85bbe9fdb3 in QApplication::notify (this=<value optimized out>, receiver=0x7fffc40f1560, e=0x7fffc40f08a0) at kernel/qapplication.cpp:4023
#36 0x00007f85bd792716 in KApplication::notify (this=0x1d42ca0, receiver=0x7fffc40f1560, event=0x7fffc40f08a0) at ../../kdeui/kernel/kapplication.cpp:311
#37 0x00007f85bcad949c in QCoreApplication::notifyInternal (this=0x1d42ca0, receiver=0x7fffc40f1560, event=0x7fffc40f08a0) at kernel/qcoreapplication.cpp:731
#38 0x00007f85bbe9ba0d in sendEvent (receiver=0x7fffc40f1560, event=0x7fffc40f08a0, alienWidget=0x0, nativeWidget=0x7fffc40f1560, buttonDown=0x7f85bc97b218, lastMouseReceiver=..., spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#39 QApplicationPrivate::sendMouseEvent (receiver=0x7fffc40f1560, event=0x7fffc40f08a0, alienWidget=0x0, nativeWidget=0x7fffc40f1560, buttonDown=0x7f85bc97b218, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3122
#40 0x00007f85bbf1b854 in QETWidget::translateMouseEvent (this=0x7fffc40f1560, event=<value optimized out>) at kernel/qapplication_x11.cpp:4490
#41 0x00007f85bbf1a04a in QApplication::x11ProcessEvent (this=0x1d42ca0, event=0x7fffc40f11f0) at kernel/qapplication_x11.cpp:3678
#42 0x00007f85bbf42162 in x11EventSourceDispatch (s=0x1d57510, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#43 0x00007f85b42d7bcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f85b42d83a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f85b42d8639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f85bcb043ef in QEventDispatcherGlib::processEvents (this=0x1c74340, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#47 0x00007f85bbf41dfe in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#48 0x00007f85bcad8882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#49 0x00007f85bcad8abc in QEventLoop::exec (this=0x7fffc40f14f0, flags=...) at kernel/qeventloop.cpp:201
#50 0x00007f85bc2d9a11 in QMenu::exec (this=0x7fffc40f1560, p=..., action=0x0) at widgets/qmenu.cpp:2059
#51 0x00007f85bf42c71f in Plasma::Containment::contextMenuEvent (this=<value optimized out>, event=0x7fffc40f1d60) at ../../plasma/containment.cpp:663
#52 0x00007f85bc467e9c in QGraphicsItem::sceneEvent (this=0x1e20700, event=0x7fffc40f1d60) at graphicsview/qgraphicsitem.cpp:6691
#53 0x00007f85bc4906cb in QGraphicsScene::contextMenuEvent (this=<value optimized out>, contextMenuEvent=0x7fffc40f1d60) at graphicsview/qgraphicsscene.cpp:3596
#54 0x00007f85bc4a3724 in QGraphicsScene::event (this=0x1e03080, event=0x7fffc40f1d60) at graphicsview/qgraphicsscene.cpp:3394
#55 0x00007f85bbe9a9e4 in QApplicationPrivate::notify_helper (this=0x1d51580, receiver=0x1e03080, e=0x7fffc40f1d60) at kernel/qapplication.cpp:4462
#56 0x00007f85bbe9f3aa in QApplication::notify (this=<value optimized out>, receiver=0x1e03080, e=0x7fffc40f1d60) at kernel/qapplication.cpp:4341
#57 0x00007f85bd792716 in KApplication::notify (this=0x1d42ca0, receiver=0x1e03080, event=0x7fffc40f1d60) at ../../kdeui/kernel/kapplication.cpp:311
#58 0x00007f85bcad949c in QCoreApplication::notifyInternal (this=0x1d42ca0, receiver=0x1e03080, event=0x7fffc40f1d60) at kernel/qcoreapplication.cpp:731
#59 0x00007f85bc4b596b in sendEvent (this=0x7f859c44f1f0, event=0x7fffc40f2650) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#60 QGraphicsView::contextMenuEvent (this=0x7f859c44f1f0, event=0x7fffc40f2650) at graphicsview/qgraphicsview.cpp:2890
#61 0x00007f85bbeeba10 in QWidget::event (this=0x7f859c44f1f0, event=0x7fffc40f2650) at kernel/qwidget.cpp:8426
#62 0x00007f85bc29ba66 in QFrame::event (this=0x7f859c44f1f0, e=0x7fffc40f2650) at widgets/qframe.cpp:557
#63 0x00007f85bc4bde8b in QGraphicsView::viewportEvent (this=0x7f859c44f1f0, event=0x7fffc40f2650) at graphicsview/qgraphicsview.cpp:2864
#64 0x00007f85bcad9627 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x7f859c4532b0, event=0x7fffc40f2650) at kernel/qcoreapplication.cpp:846
#65 0x00007f85bbe9a9b1 in QApplicationPrivate::notify_helper (this=0x1d51580, receiver=0x7f859c4532b0, e=0x7fffc40f2650) at kernel/qapplication.cpp:4458
#66 0x00007f85bbe9f561 in QApplication::notify (this=<value optimized out>, receiver=0x7f859c4532b0, e=0x7fffc40f2650) at kernel/qapplication.cpp:4102
#67 0x00007f85bd792716 in KApplication::notify (this=0x1d42ca0, receiver=0x7f859c4532b0, event=0x7fffc40f2650) at ../../kdeui/kernel/kapplication.cpp:311
#68 0x00007f85bcad949c in QCoreApplication::notifyInternal (this=0x1d42ca0, receiver=0x7f859c4532b0, event=0x7fffc40f2650) at kernel/qcoreapplication.cpp:731
#69 0x00007f85bbf1b65d in sendSpontaneousEvent (this=<value optimized out>, event=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#70 QETWidget::translateMouseEvent (this=<value optimized out>, event=<value optimized out>) at kernel/qapplication_x11.cpp:4561
#71 0x00007f85bbf1a04a in QApplication::x11ProcessEvent (this=0x1d42ca0, event=0x7fffc40f2fd0) at kernel/qapplication_x11.cpp:3678
#72 0x00007f85bbf42162 in x11EventSourceDispatch (s=0x1d57510, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#73 0x00007f85b42d7bcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#74 0x00007f85b42d83a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#75 0x00007f85b42d8639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#76 0x00007f85bcb043ef in QEventDispatcherGlib::processEvents (this=0x1c74340, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#77 0x00007f85bbf41dfe in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#78 0x00007f85bcad8882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#79 0x00007f85bcad8abc in QEventLoop::exec (this=0x7fffc40f32d0, flags=...) at kernel/qeventloop.cpp:201
#80 0x00007f85bcadcecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#81 0x00007f85bfbf0b4c in kdemain (argc=1, argv=0x7fffc40f36d8) at ../../../../plasma/desktop/shell/main.cpp:120
#82 0x00007f85bf83ceff in __libc_start_main (main=0x400740 <main(int, char**)>, argc=1, ubp_av=0x7fffc40f36d8, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fffc40f36c8) at libc-start.c:226
#83 0x0000000000400669 in _start ()

Possible duplicates by query: bug 269506, bug 266030, bug 207305.

Reported using DrKonqi