Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.27.30-170.2.82.fc10.i686 i686
Distribution: "Fedora release 10 (Cambridge)"

What I was doing when the application crashed:
plasma-desktop crashed and restarted after I performed this sequence of operations:

1.  Unlocked widgets.

2.  Removed System CPU Monitor plasmoid from Panel.

3.  Removed LCD Weather Station plasmoid from Panel.

4.  Locked widgets.

5.  Switched to another desktop.


 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb80717a0 (LWP 22692))]

Thread 2 (Thread 0xacf4cb90 (LWP 22693)):
#0  0x003d9416 in __kernel_vsyscall ()
#1  0x00486105 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x07077362 in QWaitConditionPrivate::wait () at thread/qwaitcondition_unix.cpp:87
#3  QWaitCondition::wait (this=0x9af2560, mutex=0x9af255c, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#4  0x073298f2 in QHostInfoAgent::run (this=0x9af2550) at kernel/qhostinfo.cpp:260
#5  0x07076322 in QThreadPrivate::start (arg=0x9af2550) at thread/qthread_unix.cpp:188
#6  0x0048251f in start_thread (arg=0xacf4cb90) at pthread_create.c:297
#7  0x057a204e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb80717a0 (LWP 22692)):
[KCrash Handler]
#6  0x03f93caa in QGraphicsItem::isWidget (this=0x9a76790) at graphicsview/qgraphicsitem.cpp:1142
#7  0x03fcd9f7 in QGraphicsScene::event (this=0x98f6748, event=0xbf81b580) at graphicsview/qgraphicsscene.cpp:3850
#8  0x0398e9ac in QApplicationPrivate::notify_helper (this=0x97c7670, receiver=0x98f6748, e=0xbf81b580) at kernel/qapplication.cpp:4056
#9  0x03996cbe in QApplication::notify (this=0x97c3838, receiver=0x98f6748, e=0xbf81b580) at kernel/qapplication.cpp:3603
#10 0x01141ebd in KApplication::notify () from /usr/lib/libkdeui.so.5
#11 0x0716af7b in QCoreApplication::notifyInternal (this=0x97c3838, receiver=0x98f6748, event=0xbf81b580) at kernel/qcoreapplication.cpp:610
#12 0x03fdfde5 in QCoreApplication::sendEvent (event=<value optimized out>, receiver=0x9d75a80) at ../../src/corelib/kernel/qcoreapplication.h:213
#13 QGraphicsView::viewportEvent (this=0x9d75a80, event=0xbf81b580) at graphicsview/qgraphicsview.cpp:2880
#14 0x03e37555 in QAbstractScrollAreaPrivate::viewportEvent () at widgets/qabstractscrollarea_p.h:100
#15 QAbstractScrollAreaFilter::eventFilter (this=0x9d776a0, o=0x9d77778, e=0xbf81b580) at widgets/qabstractscrollarea_p.h:111
#16 0x0716a19a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x97c7670, receiver=0x9d77778, event=0xbf81b580) at kernel/qcoreapplication.cpp:726
#17 0x0398e98a in QApplicationPrivate::notify_helper (this=0x97c7670, receiver=0x9d77778, e=0xbf81b580) at kernel/qapplication.cpp:4052
#18 0x03996da2 in QApplication::notify (this=0x97c3838, receiver=0x9d77778, e=0xbf81b580) at kernel/qapplication.cpp:4021
#19 0x01141ebd in KApplication::notify () from /usr/lib/libkdeui.so.5
#20 0x0716af7b in QCoreApplication::notifyInternal (this=0x97c3838, receiver=0x9d77778, event=0xbf81b580) at kernel/qcoreapplication.cpp:610
#21 0x039e508d in QCoreApplication::sendEvent (event=<value optimized out>, receiver=0x9d75a80) at ../../src/corelib/kernel/qcoreapplication.h:213
#22 QWidget::event (this=0x9d75a80, event=0xbf81b580) at kernel/qwidget.cpp:7797
#23 0x03d94de3 in QFrame::event (this=0x9d75a80, e=0xbf81b580) at widgets/qframe.cpp:559
#24 0x03e35a4d in QAbstractScrollArea::event (this=0x9d75a80, e=0xbf81b580) at widgets/qabstractscrollarea.cpp:918
#25 0x03fdca16 in QGraphicsView::event (this=0x9d75a80, event=0xbf81b580) at graphicsview/qgraphicsview.cpp:2840
#26 0x0398e9ac in QApplicationPrivate::notify_helper (this=0x97c7670, receiver=0x9d75a80, e=0xbf81b580) at kernel/qapplication.cpp:4056
#27 0x03996da2 in QApplication::notify (this=0x97c3838, receiver=0x9d75a80, e=0xbf81b580) at kernel/qapplication.cpp:4021
#28 0x01141ebd in KApplication::notify () from /usr/lib/libkdeui.so.5
#29 0x0716af7b in QCoreApplication::notifyInternal (this=0x97c3838, receiver=0x9d75a80, event=0xbf81b580) at kernel/qcoreapplication.cpp:610
#30 0x039958b1 in QCoreApplication::sendSpontaneousEvent (event=<value optimized out>, receiver=0x9d75a80) at ../../src/corelib/kernel/qcoreapplication.h:216
#31 QApplication::setActiveWindow (act=0x9d75a80) at kernel/qapplication.cpp:2414
#32 0x03a051fd in QApplication::x11ProcessEvent (this=0x97c3838, event=0xbf81cacc) at kernel/qapplication_x11.cpp:3464
#33 0x03a2f52a in x11EventSourceDispatch (s=0x97ca0a8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#34 0x0894c258 in g_main_dispatch () at gmain.c:2144
#35 IA__g_main_context_dispatch (context=0x97c96a0) at gmain.c:2697
#36 0x0894f903 in g_main_context_iterate (context=0x97c96a0, block=1, dispatch=1, self=0x97c70e0) at gmain.c:2778
#37 0x0894fac1 in IA__g_main_context_iteration (context=0x97c96a0, may_block=1) at gmain.c:2841
#38 0x07196808 in QEventDispatcherGlib::processEvents (this=0x97c73a0, flags={i = 36}) at kernel/qeventdispatcher_glib.cpp:327
#39 0x03a2ec25 in QGuiEventDispatcherGlib::processEvents (this=0x97c73a0, flags={i = 36}) at kernel/qguieventdispatcher_glib.cpp:202
#40 0x071695aa in QEventLoop::processEvents (this=0xbf81cd30, flags={i = 36}) at kernel/qeventloop.cpp:149
#41 0x071699f2 in QEventLoop::exec (this=0xbf81cd30, flags={i = 0}) at kernel/qeventloop.cpp:201
#42 0x0716be99 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#43 0x0398e827 in QApplication::exec () at kernel/qapplication.cpp:3525
#44 0x00f36d20 in ?? ()
#45 0x097c3838 in ?? ()
#46 0xbf81cdcc in ?? ()
#47 0xbf81ce18 in ?? ()
#48 0xbf81cdd0 in ?? ()
#49 0xbf81cdd4 in ?? ()
#50 0xbf81ce10 in ?? ()
#51 0x00000001 in ?? ()
#52 0xbf81ce0c in ?? ()
#53 0xbf81cdfc in ?? ()
#54 0xbf81cdf8 in ?? ()
#55 0xbf81cdf4 in ?? ()
#56 0x07076c3e in report_error (code=0, where=0x0, what=0x1 <Address 0x1 out of bounds>) at thread/qwaitcondition_unix.cpp:58
#57 0x08048702 in _start ()

Reported using DrKonqi