Application: plasma-desktop (4.11.5)
KDE Platform Version: 4.11.5
Qt Version: 4.8.4
Operating System: Linux 3.11.0-19-generic x86_64
Distribution: Ubuntu 13.10

-- Information about the crash:
- What I was doing when the application crashed: Executed link from K-menu, did not get gksu prompt.  Instead a "failure to grab mouse message" briefly appeared, then the crash occurred (see crash info for details).

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f323abea7c0 (LWP 3852))]

Thread 4 (Thread 0x7f321bba7700 (LWP 3853)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f323388006b in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f32338800a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f322df37f6e in start_thread (arg=0x7f321bba7700) at pthread_create.c:311
#4  0x00007f323a4cc9cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f3190b0e700 (LWP 3857)):
#0  0x00007f322df3a0aa in __GI___pthread_mutex_lock (mutex=0x7f318c000a60) at pthread_mutex_lock.c:116
#1  0x00007f322d86d3a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f322d82cd59 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f322d82d5c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f322d82d7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3237099a76 in QEventDispatcherGlib::processEvents (this=0x7f318c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f323706b5ef in QEventLoop::processEvents (this=this@entry=0x7f3190b0dd70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f323706b8e5 in QEventLoop::exec (this=this@entry=0x7f3190b0dd70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f3236f6a88f in QThread::exec (this=this@entry=0x11c1750) at thread/qthread.cpp:542
#9  0x00007f323704cd13 in QInotifyFileSystemWatcherEngine::run (this=0x11c1750) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007f3236f6cf2f in QThreadPrivate::start (arg=0x11c1750) at thread/qthread_unix.cpp:338
#11 0x00007f322df37f6e in start_thread (arg=0x7f3190b0e700) at pthread_create.c:311
#12 0x00007f323a4cc9cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f31891a2700 (LWP 3858)):
#0  0x00007f322d86d3e8 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f322d82d55d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f322d82d7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3237099a76 in QEventDispatcherGlib::processEvents (this=0x7f31840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f323706b5ef in QEventLoop::processEvents (this=this@entry=0x7f31891a1d70, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f323706b8e5 in QEventLoop::exec (this=this@entry=0x7f31891a1d70, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f3236f6a88f in QThread::exec (this=this@entry=0x1dbdb00) at thread/qthread.cpp:542
#7  0x00007f323704cd13 in QInotifyFileSystemWatcherEngine::run (this=0x1dbdb00) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f3236f6cf2f in QThreadPrivate::start (arg=0x1dbdb00) at thread/qthread_unix.cpp:338
#9  0x00007f322df37f6e in start_thread (arg=0x7f31891a2700) at pthread_create.c:311
#10 0x00007f323a4cc9cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f323abea7c0 (LWP 3852)):
[KCrash Handler]
#6  QDragManager::move (this=0x26b6f40, globalPos=...) at kernel/qdnd_x11.cpp:1648
#7  0x00007f3236493bb9 in QDragManager::eventFilter (this=0x26b6f40, o=<optimized out>, e=<optimized out>) at kernel/qdnd_x11.cpp:1308
#8  0x00007f3236410894 in QApplication::notify (this=this@entry=0x11722a0, receiver=receiver@entry=0x398bff0, e=e@entry=0x7fffe4c92b90) at kernel/qapplication.cpp:4104
#9  0x00007f3237d30a6a in KApplication::notify (this=0x11722a0, receiver=0x398bff0, event=0x7fffe4c92b90) at ../../kdeui/kernel/kapplication.cpp:311
#10 0x00007f323706c8bd in QCoreApplication::notifyInternal (this=0x11722a0, receiver=receiver@entry=0x398bff0, event=event@entry=0x7fffe4c92b90) at kernel/qcoreapplication.cpp:946
#11 0x00007f323640fd63 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#12 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x398bff0, event=event@entry=0x7fffe4c92b90, alienWidget=alienWidget@entry=0x0, nativeWidget=nativeWidget@entry=0x398bff0, buttonDown=buttonDown@entry=0x7f3236eee2f8 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#13 0x00007f32364847db in QETWidget::translateMouseEvent (this=this@entry=0x398bff0, event=event@entry=0x7fffe4c92f10) at kernel/qapplication_x11.cpp:4631
#14 0x00007f3236484079 in QApplication::x11ProcessEvent (this=0x11722a0, event=event@entry=0x7fffe4c92f10) at kernel/qapplication_x11.cpp:3624
#15 0x00007f32364ab922 in x11EventSourceDispatch (s=0x118c170, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#16 0x00007f322d82d3b6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f322d82d708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f322d82d7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f3237099a55 in QEventDispatcherGlib::processEvents (this=0x1105ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#20 0x00007f32364ab9d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#21 0x00007f323706b5ef in QEventLoop::processEvents (this=this@entry=0x4183710, flags=...) at kernel/qeventloop.cpp:149
#22 0x00007f323706b8e5 in QEventLoop::exec (this=this@entry=0x4183710, flags=...) at kernel/qeventloop.cpp:204
#23 0x00007f3236493ebd in QDragManager::drag (this=0x26b6f40, o=o@entry=0x2689500) at kernel/qdnd_x11.cpp:2032
#24 0x00007f323641adda in QDrag::exec (this=this@entry=0x2689500, supportedActions=..., defaultDropAction=defaultDropAction@entry=Qt::IgnoreAction) at kernel/qdrag.cpp:284
#25 0x00007f323641ae93 in QDrag::exec (this=this@entry=0x2689500, supportedActions=...) at kernel/qdrag.cpp:239
#26 0x00007f321d894f96 in Kickoff::UrlItemView::startDrag (this=this@entry=0x1879150, supportedActions=...) at ../../../../../plasma/desktop/applets/kickoff/ui/urlitemview.cpp:662
#27 0x00007f3236908c09 in QAbstractItemView::mouseMoveEvent (this=this@entry=0x1879150, event=event@entry=0x7fffe4c93cd0) at itemviews/qabstractitemview.cpp:1725
#28 0x00007f321d8948a5 in Kickoff::UrlItemView::mouseMoveEvent (this=0x1879150, event=0x7fffe4c93cd0) at ../../../../../plasma/desktop/applets/kickoff/ui/urlitemview.cpp:560
#29 0x00007f3236459445 in QWidget::event (this=this@entry=0x1879150, event=event@entry=0x7fffe4c93cd0) at kernel/qwidget.cpp:8360
#30 0x00007f32367fa5be in QFrame::event (this=0x1879150, e=0x7fffe4c93cd0) at widgets/qframe.cpp:557
#31 0x00007f32369096b3 in QAbstractItemView::viewportEvent (this=0x1879150, event=0x7fffe4c93cd0) at itemviews/qabstractitemview.cpp:1644
#32 0x00007f323706ca26 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x118aca0, receiver=receiver@entry=0x1c57e30, event=event@entry=0x7fffe4c93cd0) at kernel/qcoreapplication.cpp:1056
#33 0x00007f3236409ddc in QApplicationPrivate::notify_helper (this=this@entry=0x118aca0, receiver=receiver@entry=0x1c57e30, e=e@entry=0x7fffe4c93cd0) at kernel/qapplication.cpp:4563
#34 0x00007f32364105ad in QApplication::notify (this=this@entry=0x11722a0, receiver=receiver@entry=0x1c57e30, e=e@entry=0x7fffe4c93cd0) at kernel/qapplication.cpp:4110
#35 0x00007f3237d30a6a in KApplication::notify (this=0x11722a0, receiver=0x1c57e30, event=0x7fffe4c93cd0) at ../../kdeui/kernel/kapplication.cpp:311
#36 0x00007f323706c8bd in QCoreApplication::notifyInternal (this=0x11722a0, receiver=receiver@entry=0x1c57e30, event=event@entry=0x7fffe4c93cd0) at kernel/qcoreapplication.cpp:946
#37 0x00007f323640fd63 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#38 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x1c57e30, event=event@entry=0x7fffe4c93cd0, alienWidget=alienWidget@entry=0x1c57e30, nativeWidget=nativeWidget@entry=0x1cc65d0, buttonDown=buttonDown@entry=0x7f3236eee2f8 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#39 0x00007f32364101a5 in QApplicationPrivate::sendSyntheticEnterLeave (this=<optimized out>, widget=widget@entry=0x1c57e30) at kernel/qapplication.cpp:3262
#40 0x00007f323645527b in QWidgetPrivate::hideChildren (this=<optimized out>, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:7912
#41 0x00007f323645523a in QWidgetPrivate::hideChildren (this=<optimized out>, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:7898
#42 0x00007f323645523a in QWidgetPrivate::hideChildren (this=<optimized out>, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:7898
#43 0x00007f323645523a in QWidgetPrivate::hideChildren (this=this@entry=0x1cf03d0, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:7898
#44 0x00007f3236455437 in QWidgetPrivate::hide_helper (this=this@entry=0x1cf03d0) at kernel/qwidget.cpp:7642
#45 0x00007f32364586a8 in QWidget::setVisible (this=0x1cc65d0, visible=<optimized out>) at kernel/qwidget.cpp:7814
#46 0x00007f3237080a58 in QMetaObject::activate (sender=sender@entry=0x1631740, m=m@entry=0x7f321da9ef20 <Kickoff::Launcher::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#47 0x00007f321d88f5c1 in aboutToHide (this=0x1631740) at ./launcher.moc:124
#48 Kickoff::Launcher::eventFilter (this=0x1631740, object=0x1c57e30, event=0x7fffe4c94530) at ../../../../../plasma/desktop/applets/kickoff/ui/launcher.cpp:913
#49 0x00007f323706ca26 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x118aca0, receiver=receiver@entry=0x1c57e30, event=event@entry=0x7fffe4c94530) at kernel/qcoreapplication.cpp:1056
#50 0x00007f3236409ddc in QApplicationPrivate::notify_helper (this=this@entry=0x118aca0, receiver=receiver@entry=0x1c57e30, e=e@entry=0x7fffe4c94530) at kernel/qapplication.cpp:4563
#51 0x00007f32364105ad in QApplication::notify (this=this@entry=0x11722a0, receiver=receiver@entry=0x1c57e30, e=e@entry=0x7fffe4c94530) at kernel/qapplication.cpp:4110
#52 0x00007f3237d30a6a in KApplication::notify (this=0x11722a0, receiver=0x1c57e30, event=0x7fffe4c94530) at ../../kdeui/kernel/kapplication.cpp:311
#53 0x00007f323706c8bd in QCoreApplication::notifyInternal (this=0x11722a0, receiver=receiver@entry=0x1c57e30, event=event@entry=0x7fffe4c94530) at kernel/qcoreapplication.cpp:946
#54 0x00007f323640fd63 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#55 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x1c57e30, event=event@entry=0x7fffe4c94530, alienWidget=alienWidget@entry=0x1c57e30, nativeWidget=nativeWidget@entry=0x1cc65d0, buttonDown=buttonDown@entry=0x7f3236eee2f8 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#56 0x00007f32364847db in QETWidget::translateMouseEvent (this=this@entry=0x1cc65d0, event=event@entry=0x7fffe4c948b0) at kernel/qapplication_x11.cpp:4631
#57 0x00007f3236484079 in QApplication::x11ProcessEvent (this=0x11722a0, event=event@entry=0x7fffe4c948b0) at kernel/qapplication_x11.cpp:3624
#58 0x00007f32364ab922 in x11EventSourceDispatch (s=0x118c170, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#59 0x00007f322d82d3b6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#60 0x00007f322d82d708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#61 0x00007f322d82d7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#62 0x00007f3237099a55 in QEventDispatcherGlib::processEvents (this=0x1105ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#63 0x00007f32364ab9d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#64 0x00007f323706b5ef in QEventLoop::processEvents (this=this@entry=0x7fffe4c94c90, flags=...) at kernel/qeventloop.cpp:149
#65 0x00007f323706b8e5 in QEventLoop::exec (this=this@entry=0x7fffe4c94c90, flags=...) at kernel/qeventloop.cpp:204
#66 0x00007f3237070e5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#67 0x00007f323640834c in QApplication::exec () at kernel/qapplication.cpp:3828
#68 0x00007f323a7d664c in kdemain (argc=1, argv=0x7fffe4c94ee8) at ../../../../plasma/desktop/shell/main.cpp:126
#69 0x00007f323a3f3de5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, ubp_av=0x7fffe4c94ee8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffe4c94ed8) at libc-start.c:260
#70 0x000000000040070e in _start ()

Possible duplicates by query: bug 324727, bug 323742.

Reported using DrKonqi