Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-16-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
I clicked on the system monitoring applet in the panel, I first clicked on the very right button and then on the very left one, then it crashed

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb77d8700 (LWP 1687))]

Thread 2 (Thread 0xaa56fb70 (LWP 1689)):
#0  0x00cf7422 in __kernel_vsyscall ()
#1  0x005cee15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x00c3978d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x0015fe67 in QWaitConditionPrivate::wait (this=0xa62c3f8, mutex=0xa62c3f4, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0xa62c3f8, mutex=0xa62c3f4, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0x050f6922 in QHostInfoAgent::run (this=0xa62c3e8) at kernel/qhostinfo.cpp:260
#6  0x0015ee32 in QThreadPrivate::start (arg=0xa62c3e8) at thread/qthread_unix.cpp:188
#7  0x005ca80e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0x00c2c7ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb77d8700 (LWP 1687)):
[KCrash Handler]
#6  Plasma::Containment::containmentType (this=0xad3d768) at ../../plasma/containment.cpp:418
#7  0x06b653c3 in SystemMonitor::removeApplet (this=0xa42bcc8, name=...) at ../../../../plasma/applets/system-monitor/system-monitor.cpp:156
#8  0x06b65d6d in SystemMonitor::toggled (this=0xa42bcc8, toggled=false) at ../../../../plasma/applets/system-monitor/system-monitor.cpp:108
#9  0x06b65ea8 in SystemMonitor::qt_metacall (this=0xa42bcc8, _c=QMetaObject::InvokeMetaMethod, _id=47, _a=0xbffab7b8) at ./system-monitor.moc:72
#10 0x00265263 in QMetaObject::activate (sender=0xa7147e8, from_signal_index=8, to_signal_index=8, argv=0xbffab7b8) at kernel/qobject.cpp:3113
#11 0x00265ec2 in QMetaObject::activate (sender=0xa7147e8, m=0x957063c, local_signal_index=1, argv=0xbffab7b8) at kernel/qobject.cpp:3187
#12 0x094b56a9 in Plasma::PushButton::toggled (this=0xa7147e8, _t1=false) at ./pushbutton.moc:140
#13 0x094b6f20 in Plasma::PushButton::qt_metacall (this=0xa7147e8, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0xbffab948) at ./pushbutton.moc:85
#14 0x06b67d4a in MonitorButton::qt_metacall (this=0xa7147e8, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbffab948) at ./monitorbutton.moc:67
#15 0x00265263 in QMetaObject::activate (sender=0xa749200, from_signal_index=31, to_signal_index=31, argv=0xbffab948) at kernel/qobject.cpp:3113
#16 0x00265ec2 in QMetaObject::activate (sender=0xa749200, m=0x25630a4, local_signal_index=4, argv=0xbffab948) at kernel/qobject.cpp:3187
#17 0x0237cbe9 in QAbstractButton::toggled (this=0xa749200, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:207
#18 0x020a74f4 in QAbstractButton::setChecked (this=0xa749200, checked=false) at widgets/qabstractbutton.cpp:763
#19 0x020a7680 in QAbstractButton::nextCheckState (this=0xa749200) at widgets/qabstractbutton.cpp:1017
#20 0x020a7163 in QAbstractButtonPrivate::click (this=0xa711f08) at widgets/qabstractbutton.cpp:525
#21 0x020a7431 in QAbstractButton::mouseReleaseEvent (this=0xa749200, e=0x9edf7d0) at widgets/qabstractbutton.cpp:1115
#22 0x01d45012 in QWidget::event (this=0xa749200, event=0x9edf7d0) at kernel/qwidget.cpp:7549
#23 0x020a53ee in QAbstractButton::event (this=0xa749200, e=0x0) at widgets/qabstractbutton.cpp:1077
#24 0x0214f66d in QPushButton::event (this=0xa749200, e=0x9edf7d0) at widgets/qpushbutton.cpp:662
#25 0x01ceff54 in QApplicationPrivate::notify_helper (this=0x9eb2d28, receiver=0xa749200, e=0x9edf7d0) at kernel/qapplication.cpp:4056
#26 0x01cf8033 in QApplication::notify (this=0x9e8bf38, receiver=0xa749200, e=0x9edf7d0) at kernel/qapplication.cpp:3758
#27 0x00ecabfa in KApplication::notify (this=0x9e8bf38, receiver=0xa749200, event=0x9edf7d0) at ../../kdeui/kernel/kapplication.cpp:302
#28 0x0024f6cb in QCoreApplication::notifyInternal (this=0x9e8bf38, receiver=0xa749200, event=0x9edf7d0) at kernel/qcoreapplication.cpp:610
#29 0x01cf6f6e in QCoreApplication::sendSpontaneousEvent (receiver=0xa749200, event=0x9edf7d0, alienWidget=0x0, nativeWidget=0xa749200, buttonDown=0xbffabfcc, lastMouseReceiver=...)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#30 QApplicationPrivate::sendMouseEvent (receiver=0xa749200, event=0x9edf7d0, alienWidget=0x0, nativeWidget=0xa749200, buttonDown=0xbffabfcc, lastMouseReceiver=...) at kernel/qapplication.cpp:2924
#31 0x0235d1b5 in QGraphicsProxyWidgetPrivate::sendWidgetMouseEvent (this=0xa711cc0, event=0xbffac64c) at graphicsview/qgraphicsproxywidget.cpp:278
#32 0x022fb8bc in QGraphicsItem::sceneEvent (this=0xa7147f0, event=0xbffac64c) at graphicsview/qgraphicsitem.cpp:5030
#33 0x023489ef in QGraphicsWidget::sceneEvent (this=0xa7147e8, event=0xbffac64c) at graphicsview/qgraphicswidget.cpp:1110
#34 0x0231de14 in QGraphicsScenePrivate::sendEvent (this=0x9f00fd8, item=0xa7147f0, event=0xbffac64c) at graphicsview/qgraphicsscene.cpp:1159
#35 0x0231f443 in QGraphicsScenePrivate::sendMouseEvent (this=0x9f00fd8, mouseEvent=0xbffac64c) at graphicsview/qgraphicsscene.cpp:1230
#36 0x0232a344 in QGraphicsScene::mouseReleaseEvent (this=0x9f526e8, mouseEvent=0xbffac64c) at graphicsview/qgraphicsscene.cpp:4445
#37 0x0232bf87 in QGraphicsScene::event (this=0x9f526e8, event=0xbffac64c) at graphicsview/qgraphicsscene.cpp:3808
#38 0x01ceff54 in QApplicationPrivate::notify_helper (this=0x9eb2d28, receiver=0x9f526e8, e=0xbffac64c) at kernel/qapplication.cpp:4056
#39 0x01cf767c in QApplication::notify (this=0x9e8bf38, receiver=0x9f526e8, e=0xbffac64c) at kernel/qapplication.cpp:3603
#40 0x00ecabfa in KApplication::notify (this=0x9e8bf38, receiver=0x9f526e8, event=0xbffac64c) at ../../kdeui/kernel/kapplication.cpp:302
#41 0x0024f6cb in QCoreApplication::notifyInternal (this=0x9e8bf38, receiver=0x9f526e8, event=0xbffac64c) at kernel/qcoreapplication.cpp:610
#42 0x0233db1e in QCoreApplication::sendEvent (this=0xa718cb8, event=0xbffacc70) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#43 QGraphicsView::mouseReleaseEvent (this=0xa718cb8, event=0xbffacc70) at graphicsview/qgraphicsview.cpp:3382
#44 0x01d45012 in QWidget::event (this=0xa718cb8, event=0xbffacc70) at kernel/qwidget.cpp:7549
#45 0x020f4633 in QFrame::event (this=0xa718cb8, e=0xbffacc70) at widgets/qframe.cpp:559
#46 0x02193494 in QAbstractScrollArea::viewportEvent (this=0x6, e=0x0) at widgets/qabstractscrollarea.cpp:962
#47 0x0233d51f in QGraphicsView::viewportEvent (this=0xa718cb8, event=0xbffacc70) at graphicsview/qgraphicsview.cpp:2919
#48 0x02195a95 in QAbstractScrollAreaPrivate::viewportEvent (this=0xa73c588, o=0xa72af48, e=0xbffacc70) at widgets/qabstractscrollarea_p.h:100
#49 QAbstractScrollAreaFilter::eventFilter (this=0xa73c588, o=0xa72af48, e=0xbffacc70) at widgets/qabstractscrollarea_p.h:111
#50 0x0024e83a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x9eb2d28, receiver=0xa72af48, event=0xbffacc70) at kernel/qcoreapplication.cpp:726
#51 0x01ceff2c in QApplicationPrivate::notify_helper (this=0x9eb2d28, receiver=0xa72af48, e=0xbffacc70) at kernel/qapplication.cpp:4052
#52 0x01cf8033 in QApplication::notify (this=0x9e8bf38, receiver=0xa72af48, e=0xbffacc70) at kernel/qapplication.cpp:3758
#53 0x00ecabfa in KApplication::notify (this=0x9e8bf38, receiver=0xa72af48, event=0xbffacc70) at ../../kdeui/kernel/kapplication.cpp:302
#54 0x0024f6cb in QCoreApplication::notifyInternal (this=0x9e8bf38, receiver=0xa72af48, event=0xbffacc70) at kernel/qcoreapplication.cpp:610
#55 0x01cf6f6e in QCoreApplication::sendSpontaneousEvent (receiver=0xa72af48, event=0xbffacc70, alienWidget=0xa72af48, nativeWidget=0xa43e6f8, buttonDown=0x256aaa0, lastMouseReceiver=...)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#56 QApplicationPrivate::sendMouseEvent (receiver=0xa72af48, event=0xbffacc70, alienWidget=0xa72af48, nativeWidget=0xa43e6f8, buttonDown=0x256aaa0, lastMouseReceiver=...)
    at kernel/qapplication.cpp:2924
#57 0x01d657c0 in QETWidget::translateMouseEvent (this=0xa43e6f8, event=0xbffae2bc) at kernel/qapplication_x11.cpp:4409
#58 0x01d64c4b in QApplication::x11ProcessEvent (this=0x9e8bf38, event=0xbffae2bc) at kernel/qapplication_x11.cpp:3428
#59 0x01d91502 in x11EventSourceDispatch (s=0x9eb54a8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#60 0x03ab4e78 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#61 0x03ab8720 in ?? () from /lib/libglib-2.0.so.0
#62 0x03ab8853 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#63 0x0027a02c in QEventDispatcherGlib::processEvents (this=0x9eb2b18, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#64 0x01d90be5 in QGuiEventDispatcherGlib::processEvents (this=0x9eb2b18, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#65 0x0024dc79 in QEventLoop::processEvents (this=0xbffae5b4, flags=) at kernel/qeventloop.cpp:149
#66 0x0024e0ca in QEventLoop::exec (this=0xbffae5b4, flags=...) at kernel/qeventloop.cpp:201
#67 0x0025053f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#68 0x01cefdd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#69 0x0119b80d in kdemain (argc=1, argv=0x9e211e8) at ../../../../plasma/shells/desktop/main.cpp:50
#70 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x9e6c6a0 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80511a5 "0") at ../../kinit/kinit.cpp:677
#71 0x0804ea35 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#72 0x0804eeac in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#73 0x0804fbaf in main (argc=2, argv=0xbffaee14, envp=0xbffaee20) at ../../kinit/kinit.cpp:1793

This bug may be a duplicate of or related to bug 217453

Reported using DrKonqi