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 2.6.31-17-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
I have juste change of desktop with compiz cube enabled.

 -- Backtrace:
Application: Espace de travail Plasma (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7758700 (LWP 5393))]

Thread 2 (Thread 0xac4adb70 (LWP 5396)):
#0  0x0067a422 in __kernel_vsyscall ()
#1  0x00386e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0075478d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x00b49e67 in QWaitConditionPrivate::wait (this=0x90a6b28, mutex=0x90a6b24, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0x90a6b28, mutex=0x90a6b24, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0x00990922 in QHostInfoAgent::run (this=0x90a6b18) at kernel/qhostinfo.cpp:260
#6  0x00b48e32 in QThreadPrivate::start (arg=0x90a6b18) at thread/qthread_unix.cpp:188
#7  0x0038280e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0x007477ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb7758700 (LWP 5393)):
[KCrash Handler]
#6  0x0204218a in QGraphicsItem::isWidget (this=0x8d8ab70) at graphicsview/qgraphicsitem.cpp:1143
#7  0x0207b527 in QGraphicsScene::event (this=0x8a69210, event=0xbf8add34) at graphicsview/qgraphicsscene.cpp:3850
#8  0x01a3ef54 in QApplicationPrivate::notify_helper (this=0x88fa4e0, receiver=0x8a69210, e=0xbf8add34) at kernel/qapplication.cpp:4056
#9  0x01a4667c in QApplication::notify (this=0x88f4548, receiver=0x8a69210, e=0xbf8add34) at kernel/qapplication.cpp:3603
#10 0x01183bfa in KApplication::notify (this=0x88f4548, receiver=0x8a69210, event=0xbf8add34) at ../../kdeui/kernel/kapplication.cpp:302
#11 0x00c396cb in QCoreApplication::notifyInternal (this=0x88f4548, receiver=0x8a69210, event=0xbf8add34) at kernel/qcoreapplication.cpp:610
#12 0x0208c5e7 in QCoreApplication::sendEvent (this=0x90af690, event=0xbf8add34) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#13 QGraphicsView::viewportEvent (this=0x90af690, event=0xbf8add34) at graphicsview/qgraphicsview.cpp:2880
#14 0x01ee4a95 in QAbstractScrollAreaPrivate::viewportEvent (this=0x90b05f0, o=0x90b06c8, e=0xbf8add34) at widgets/qabstractscrollarea_p.h:100
#15 QAbstractScrollAreaFilter::eventFilter (this=0x90b05f0, o=0x90b06c8, e=0xbf8add34) at widgets/qabstractscrollarea_p.h:111
#16 0x00c3883a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x88fa4e0, receiver=0x90b06c8, event=0xbf8add34) at kernel/qcoreapplication.cpp:726
#17 0x01a3ef2c in QApplicationPrivate::notify_helper (this=0x88fa4e0, receiver=0x90b06c8, e=0xbf8add34) at kernel/qapplication.cpp:4052
#18 0x01a465ca in QApplication::notify (this=0x88f4548, receiver=0x90b06c8, e=0xbf8add34) at kernel/qapplication.cpp:4021
#19 0x01183bfa in KApplication::notify (this=0x88f4548, receiver=0x90b06c8, event=0xbf8add34) at ../../kdeui/kernel/kapplication.cpp:302
#20 0x00c396cb in QCoreApplication::notifyInternal (this=0x88f4548, receiver=0x90b06c8, event=0xbf8add34) at kernel/qcoreapplication.cpp:610
#21 0x01a93ad5 in QCoreApplication::sendEvent (this=0x90af690, event=0xbf8add34) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#22 QWidget::event (this=0x90af690, event=0xbf8add34) at kernel/qwidget.cpp:7797
#23 0x01e43633 in QFrame::event (this=0x90af690, e=0xbf8add34) at widgets/qframe.cpp:559
#24 0x01ee2faa in QAbstractScrollArea::event (this=0x90af690, e=0xbf8add34) at widgets/qabstractscrollarea.cpp:918
#25 0x0208c406 in QGraphicsView::event (this=0x90af690, event=0xbf8add34) at graphicsview/qgraphicsview.cpp:2840
#26 0x01a3ef54 in QApplicationPrivate::notify_helper (this=0x88fa4e0, receiver=0x90af690, e=0xbf8add34) at kernel/qapplication.cpp:4056
#27 0x01a465ca in QApplication::notify (this=0x88f4548, receiver=0x90af690, e=0xbf8add34) at kernel/qapplication.cpp:4021
#28 0x01183bfa in KApplication::notify (this=0x88f4548, receiver=0x90af690, event=0xbf8add34) at ../../kdeui/kernel/kapplication.cpp:302
#29 0x00c396cb in QCoreApplication::notifyInternal (this=0x88f4548, receiver=0x90af690, event=0xbf8add34) at kernel/qcoreapplication.cpp:610
#30 0x01a49df6 in QCoreApplication::sendSpontaneousEvent (act=0x90af690) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#31 QApplication::setActiveWindow (act=0x90af690) at kernel/qapplication.cpp:2414
#32 0x01ab321f in QApplication::x11ProcessEvent (this=0x88f4548, event=0xbf8af23c) at kernel/qapplication_x11.cpp:3469
#33 0x01ae0502 in x11EventSourceDispatch (s=0x88fd100, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#34 0x007f7e88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#35 0x007fb730 in ?? () from /lib/libglib-2.0.so.0
#36 0x007fb863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#37 0x00c6402c in QEventDispatcherGlib::processEvents (this=0x88fa2d0, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#38 0x01adfbe5 in QGuiEventDispatcherGlib::processEvents (this=0x88fa2d0, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#39 0x00c37c79 in QEventLoop::processEvents (this=0xbf8af534, flags=) at kernel/qeventloop.cpp:149
#40 0x00c380ca in QEventLoop::exec (this=0xbf8af534, flags=...) at kernel/qeventloop.cpp:201
#41 0x00c3a53f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#42 0x01a3edd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#43 0x036ba80d in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#44 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x8881a48 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80511a5 "0") at ../../kinit/kinit.cpp:677
#45 0x0804ea35 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#46 0x0804eeac in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#47 0x0804fbaf in main (argc=2, argv=0xbf8afd94, envp=0xbf8afda0) at ../../kinit/kinit.cpp:1793

Reported using DrKonqi