Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.3.0-030300-generic i686
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:

- Unusual behavior I noticed:

I had left the computer on overnight (MAC book pro 7.1), and when I cam beck the desktop had partially crashed and there was an error messagethat KDE plasma desktop had crashed, nothing worked. Had to power off via power button and restart. I also frequently receive the message that UBUNTU 12.04 has experienced an internal error, and I am not sure if this is related or another problem.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1a57740 (LWP 1814))]

Thread 5 (Thread 0xa777eb40 (LWP 1855)):
#0  0xb2c61ca7 in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb75dc5f4 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2b8e390 in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2b4f04c in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2b4f1c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb63f28e7 in QEventDispatcherGlib::processEvents (this=0xa6e00468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb63be50d in QEventLoop::processEvents (this=0xa777e240, flags=...) at kernel/qeventloop.cpp:149
#7  0xb63be7a9 in QEventLoop::exec (this=0xa777e240, flags=...) at kernel/qeventloop.cpp:204
#8  0xb62a794c in QThread::exec (this=0x95d5490) at thread/qthread.cpp:501
#9  0xb639bb5d in QInotifyFileSystemWatcherEngine::run (this=0x95d5490) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb62aade0 in QThreadPrivate::start (arg=0x95d5490) at thread/qthread_unix.cpp:298
#11 0xb2c5fd4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb75ceace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 4 (Thread 0xa5d1eb40 (LWP 1859)):
#0  0xb7728424 in __kernel_vsyscall ()
#1  0xb75c0380 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2b5ca3b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2b4f06e in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2b4f1c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb63f28e7 in QEventDispatcherGlib::processEvents (this=0xa5400468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb63be50d in QEventLoop::processEvents (this=0xa5d1e240, flags=...) at kernel/qeventloop.cpp:149
#7  0xb63be7a9 in QEventLoop::exec (this=0xa5d1e240, flags=...) at kernel/qeventloop.cpp:204
#8  0xb62a794c in QThread::exec (this=0x97ca2e8) at thread/qthread.cpp:501
#9  0xb639bb5d in QInotifyFileSystemWatcherEngine::run (this=0x97ca2e8) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb62aade0 in QThreadPrivate::start (arg=0x97ca2e8) at thread/qthread_unix.cpp:298
#11 0xb2c5fd4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb75ceace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xa53ffb40 (LWP 1862)):
#0  0xb7728424 in __kernel_vsyscall ()
#1  0xb2c6396b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb75dc3dc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb3c20029 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb3c2006f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb2c5fd4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb75ceace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xa3bffb40 (LWP 1921)):
#0  0xb7728424 in __kernel_vsyscall ()
#1  0xb75c0380 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2b5ca3b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2b4f06e in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2b4f52b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xa46660ea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb2b72673 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb2c5fd4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0xb75ceace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb1a57740 (LWP 1814)):
[KCrash Handler]
#7  QWidgetPrivate::nearestGraphicsProxyWidget (origin=0xa3921c8) at kernel/qwidget.cpp:5884
#8  0xb591eb03 in screenGeometry (widget=0xa3921c8) at kernel/qwidget_p.h:599
#9  QDesktopWidget::screenGeometry (this=0x8d03f90, widget=0xa3921c8) at kernel/qdesktopwidget.cpp:55
#10 0xb5d64045 in popupGeometry (widget=0xa3921c8, this=<optimized out>) at widgets/qmenu.cpp:202
#11 QMenuPrivate::popupGeometry (this=0xa3c0f88, widget=0xa3921c8) at widgets/qmenu.cpp:196
#12 0xb5d67996 in QMenuPrivate::updateActionRects (this=0xa3c0f88) at widgets/qmenu.cpp:243
#13 0xb5d68df6 in QMenu::popup (this=0xa275528, p=..., atAction=0x0) at widgets/qmenu.cpp:1834
#14 0xaecd52ce in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#15 0xaecc3819 in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#16 0xb63d66b1 in QMetaObject::activate (sender=0xa4758e8, m=0xb68654ac, local_signal_index=3, argv=0xbf889af8) at kernel/qobject.cpp:3547
#17 0xb66b4f85 in KJob::result (this=0xa4758e8, _t1=0xa4758e8) at ./kjob.moc:208
#18 0xb66b4fd8 in KJob::emitResult (this=0xa4758e8) at ../../kdecore/jobs/kjob.cpp:318
#19 0xb7376288 in Plasma::ServiceJob::setResult (this=0xa4758e8, result=...) at ../../plasma/servicejob.cpp:92
#20 0xaeca6f36 in ?? () from /usr/lib/kde4/plasma_engine_statusnotifieritem.so
#21 0xb63d66b1 in QMetaObject::activate (sender=0xa2757b0, m=0xaecb0c58, local_signal_index=0, argv=0xbf889c68) at kernel/qobject.cpp:3547
#22 0xaeca2585 in ?? () from /usr/lib/kde4/plasma_engine_statusnotifieritem.so
#23 0xaeca25c1 in ?? () from /usr/lib/kde4/plasma_engine_statusnotifieritem.so
#24 0xaeca5a60 in ?? () from /usr/lib/kde4/plasma_engine_statusnotifieritem.so
#25 0xb63d66b1 in QMetaObject::activate (sender=0xa4362b0, m=0xb2cf5e20, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3547
#26 0xb2cd9065 in DBusMenuImporter::menuUpdated() () from /usr/lib/i386-linux-gnu/libdbusmenu-qt.so.2
#27 0xb2cd9d34 in DBusMenuImporter::slotMenuAboutToShow() () from /usr/lib/i386-linux-gnu/libdbusmenu-qt.so.2
#28 0xb2ce39b0 in ?? () from /usr/lib/i386-linux-gnu/libdbusmenu-qt.so.2
#29 0xb63d66b1 in QMetaObject::activate (sender=0xa275528, m=0xb6229b74, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3547
#30 0xb5d650f5 in QMenu::aboutToShow (this=0xa275528) at .moc/release-shared/moc_qmenu.cpp:165
#31 0xb5d6a6e8 in qt_static_metacall (_a=0xbf88a138, _id=0, _o=0xa275528, _c=<optimized out>) at .moc/release-shared/moc_qmenu.cpp:74
#32 QMenu::qt_static_metacall (_o=0xa275528, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbf88a138) at .moc/release-shared/moc_qmenu.cpp:68
#33 0xb63c873d in QMetaMethod::invoke (this=0xbf88a29c, object=0xa275528, connectionType=Qt::DirectConnection, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1664
#34 0xb63cad4f in QMetaObject::invokeMethod (obj=0xa275528, member=0xb2ce9a27 "aboutToShow", type=Qt::AutoConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1179
#35 0xb2cd89bf in DBusMenuImporter::updateMenu() () from /usr/lib/i386-linux-gnu/libdbusmenu-qt.so.2
#36 0xaeca2123 in ?? () from /usr/lib/kde4/plasma_engine_statusnotifieritem.so
#37 0xaeca8014 in ?? () from /usr/lib/kde4/plasma_engine_statusnotifieritem.so
#38 0xb7375e42 in autoStart (this=<optimized out>) at ../../plasma/servicejob.cpp:47
#39 qt_static_metacall (_o=0xa4758e8, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./servicejob.moc:61
#40 Plasma::ServiceJob::qt_static_metacall (_o=0xa4758e8, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xa844828) at ./servicejob.moc:55
#41 0xb63d1c01 in QMetaCallEvent::placeMetaCall (this=0xa6b0fe8, object=0xa4758e8) at kernel/qobject.cpp:525
#42 0xb63dac7b in QObject::event (this=0xa4758e8, e=0xa6b0fe8) at kernel/qobject.cpp:1195
#43 0xb58aaed4 in notify_helper (e=0xa6b0fe8, receiver=0xa4758e8, this=0x8c8d160) at kernel/qapplication.cpp:4559
#44 QApplicationPrivate::notify_helper (this=0x8c8d160, receiver=0xa4758e8, e=0xa6b0fe8) at kernel/qapplication.cpp:4531
#45 0xb58b030d in QApplication::notify (this=0xa6b0fe8, receiver=0xa4758e8, e=0xa6b0fe8) at kernel/qapplication.cpp:4288
#46 0xb6a59b21 in KApplication::notify (this=0x8c7dc30, receiver=0xa4758e8, event=0xa6b0fe8) at ../../kdeui/kernel/kapplication.cpp:311
#47 0xb63bf97e in QCoreApplication::notifyInternal (this=0x8c7dc30, receiver=0xa4758e8, event=0xa6b0fe8) at kernel/qcoreapplication.cpp:876
#48 0xb63c3ad8 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#49 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8c40130) at kernel/qcoreapplication.cpp:1500
#50 0xb63c3e0c in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1393
#51 0xb63f2494 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#52 postEventSourceDispatch (s=0x8c8fa80) at kernel/qeventdispatcher_glib.cpp:279
#53 0xb2b4ecda in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#54 0xb2b4f0e5 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#55 0xb2b4f1c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#56 0xb63f2887 in QEventDispatcherGlib::processEvents (this=0x8c40ea0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#57 0xb5963aaa in QGuiEventDispatcherGlib::processEvents (this=0x8c40ea0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#58 0xb63be50d in QEventLoop::processEvents (this=0xbf88af04, flags=...) at kernel/qeventloop.cpp:149
#59 0xb63be7a9 in QEventLoop::exec (this=0xbf88af04, flags=...) at kernel/qeventloop.cpp:204
#60 0xb63c3eba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#61 0xb58a8a74 in QApplication::exec () at kernel/qapplication.cpp:3820
#62 0xb76dca7b in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#63 0x0804850b in ?? ()
#64 0xb74fd4d3 in __libc_start_main () from /lib/i386-linux-gnu/libc.so.6
#65 0x08048531 in _start ()

Possible duplicates by query: bug 300035.

Reported using DrKonqi