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 2.6.31-14-generic-pae i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
I had opened amarok and was looking for it in the taskbar and then clicked on the show the plasma dashboard and had the crash

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb5827700 (LWP 2033))]

Thread 2 (Thread 0xa691fb70 (LWP 2039)):
#0  0xb7857430 in __kernel_vsyscall ()
#1  0xb5f81e15 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:122
#2  0xb614578d in __pthread_cond_wait (cond=0xa5dbed8, mutex=0xa5dbec0) at forward.c:139
#3  0xb765ae67 in QWaitConditionPrivate::wait (this=0xa6285d0, mutex=0xa6285cc, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0xa6285d0, mutex=0xa6285cc, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0xb5e93922 in QHostInfoAgent::run (this=0xa6285c0) at kernel/qhostinfo.cpp:260
#6  0xb7659e32 in QThreadPrivate::start (arg=0xa6285c0) at thread/qthread_unix.cpp:188
#7  0xb5f7d80e in start_thread (arg=0xa691fb70) at pthread_create.c:300
#8  0xb61387ee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb5827700 (LWP 2033)):
[KCrash Handler]
#6  QWidget::mapToParent (this=0x0, pos=...) at kernel/qwidget.cpp:3848
#7  0xb640aeeb in QWidget::mapTo (this=0x0, parent=0xa488f50, pos=...) at kernel/qwidget.cpp:3804
#8  0xb65adc13 in qt_flush (this=0xa4895e0, widget=0x0, surface=0x0) at painting/qbackingstore.cpp:98
#9  QWidgetBackingStore::flush (this=0xa4895e0, widget=0x0, surface=0x0) at painting/qbackingstore.cpp:1341
#10 0xb65af321 in QWidgetBackingStore::sync (this=0xa4895e0) at painting/qbackingstore.cpp:1272
#11 0xb6412116 in QWidgetPrivate::syncBackingStore (this=0xa488bd0) at kernel/qwidget.cpp:1603
#12 0xb6419215 in QWidget::event (this=0xa488f50, event=0xac806a0) at kernel/qwidget.cpp:7827
#13 0xb67c8633 in QFrame::event (this=0xa488f50, e=0xac806a0) at widgets/qframe.cpp:559
#14 0xb6867faa in QAbstractScrollArea::event (this=0xa488f50, e=0xac806a0) at widgets/qabstractscrollarea.cpp:918
#15 0xb6a11406 in QGraphicsView::event (this=0xa488f50, event=0xac806a0) at graphicsview/qgraphicsview.cpp:2840
#16 0xb63c3f54 in QApplicationPrivate::notify_helper (this=0x9db5210, receiver=0xa488f50, e=0xac806a0) at kernel/qapplication.cpp:4056
#17 0xb63cb5ca in QApplication::notify (this=0x9d8e2d0, receiver=0xa488f50, e=0xac806a0) at kernel/qapplication.cpp:4021
#18 0xb6e13bfa in KApplication::notify (this=0x9d8e2d0, receiver=0xa488f50, event=0xac806a0) at ../../kdeui/kernel/kapplication.cpp:302
#19 0xb774a6cb in QCoreApplication::notifyInternal (this=0x9d8e2d0, receiver=0xa488f50, event=0xac806a0) at kernel/qcoreapplication.cpp:610
#20 0xb774b2b2 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x9d29e48) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#21 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9d29e48) at kernel/qcoreapplication.cpp:1247
#22 0xb774b47d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1140
#23 0xb77753ff in QCoreApplication::sendPostedEvents (s=0x9db7310) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#24 postEventSourceDispatch (s=0x9db7310) at kernel/qeventdispatcher_glib.cpp:210
#25 0xb5fc9e78 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#26 0xb5fcd720 in ?? () from /lib/libglib-2.0.so.0
#27 0xb5fcd853 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#28 0xb777502c in QEventDispatcherGlib::processEvents (this=0x9db5000, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#29 0xb6464be5 in QGuiEventDispatcherGlib::processEvents (this=0x9db5000, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#30 0xb7748c79 in QEventLoop::processEvents (this=0xbfea6664, flags=) at kernel/qeventloop.cpp:149
#31 0xb77490ca in QEventLoop::exec (this=0xbfea6664, flags=...) at kernel/qeventloop.cpp:201
#32 0xb774b53f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#33 0xb63c3dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#34 0xb340380d in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#35 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x9d47b48 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80511a5 "0") at ../../kinit/kinit.cpp:677
#36 0x0804ea35 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#37 0x0804eeac in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#38 0x0804fbaf in main (argc=2, argv=0xbfea6ec4, envp=0xbfea6ed0) at ../../kinit/kinit.cpp:1793

This bug may be a duplicate of or related to bug 179156

Reported using DrKonqi