Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.3
Operating System: Linux 2.6.30-gentoo-r8 i686

What I was doing when the application crashed:
I had just copied some text from Firefox 3.0.14 and was switching to another app (GTK+ app) by the mean of the tasks manager. 

 -- Backtrace:
Application: Espace de travail Plasma (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 6153)]

Thread 2 (Thread 0xa9159b90 (LWP 6156)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb7d84c35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb7e0b24b in QWaitCondition::wait (this=0x82fca08, mutex=0x82fca04, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  0xb7702a62 in QHostInfoAgent::run (this=0x82fc9f8) at kernel/qhostinfo.cpp:260
#4  0xb7e0a487 in QThreadPrivate::start (arg=0x82fc9f8) at thread/qthread_unix.cpp:188
#5  0xb7d8113f in start_thread () from /lib/libpthread.so.0
#6  0xb68d69de in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb6259920 (LWP 6153)):
[KCrash Handler]
#6  0xb786c6c9 in KDirModel::dirLister (this=0x81d8ab0) at /var/tmp/portage/kde-base/kdelibs-4.3.1-r2/work/kdelibs-4.3.1/kio/kio/kdirmodel.cpp:353
#7  0xb5ea4d7e in KFilePreviewGenerator::Private::updateCutItems (this=0x865b9e0) at /var/tmp/portage/kde-base/kdelibs-4.3.1-r2/work/kdelibs-4.3.1/kfile/kfilepreviewgenerator.cpp:640
#8  0xb5ea5a16 in KFilePreviewGenerator::qt_metacall (this=0x8b67be8, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xbfd002c8)
    at /var/tmp/portage/kde-base/kdelibs-4.3.1-r2/work/kdelibs-4.3.1_build/kfile/kfilepreviewgenerator.moc:89
#9  0xb7efacc3 in QMetaObject::activate (sender=0x8121be8, from_signal_index=<value optimized out>, to_signal_index=7, argv=0x10) at kernel/qobject.cpp:3101
#10 0xb7efb262 in QMetaObject::activate (sender=0x8121be8, m=0xb72403e8, local_signal_index=3, argv=0x0) at kernel/qobject.cpp:3178
#11 0xb716e2f7 in QClipboard::dataChanged (this=0x8121be8) at .moc/release-shared/moc_qclipboard.cpp:108
#12 0xb6bf25f9 in QApplication::x11ProcessEvent (this=0x80bde10, event=0xbfd0180c) at kernel/qapplication_x11.cpp:3386
#13 0xb6c1867a in x11EventSourceDispatch (s=0x80d29a8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#14 0xb6748567 in IA__g_main_context_dispatch (context=0x80d1e90) at gmain.c:1824
#15 0xb674bb23 in g_main_context_iterate (context=0x80d1e90, block=1, dispatch=1, self=0x80cf8a0) at gmain.c:2455
#16 0xb674bca8 in IA__g_main_context_iteration (context=0x80d1e90, may_block=1) at gmain.c:2518
#17 0xb7f0fbc8 in QEventDispatcherGlib::processEvents (this=0x80cfb88, flags={i = -1076880952}) at kernel/qeventdispatcher_glib.cpp:327
#18 0xb6c17e75 in QGuiEventDispatcherGlib::processEvents (this=0x80cfb88, flags={i = -1076880904}) at kernel/qguieventdispatcher_glib.cpp:202
#19 0xb7ee729a in QEventLoop::processEvents (this=0xbfd01a60, flags={i = -1076880840}) at kernel/qeventloop.cpp:149
#20 0xb7ee745a in QEventLoop::exec (this=0xbfd01a60, flags={i = -1076880792}) at kernel/qeventloop.cpp:197
#21 0xb7ee9601 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#22 0xb6b8a847 in QApplication::exec () at kernel/qapplication.cpp:3525
#23 0xb46abee0 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#24 0x0804e54b in launch (argc=1, _name=0x806f43c "/usr/bin/plasma-desktop", args=0x806f454 "", cwd=0x0, envc=0, envs=0x806f458 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80514fd "0") at /var/tmp/portage/kde-base/kdelibs-4.3.1-r2/work/kdelibs-4.3.1/kinit/kinit.cpp:677
#25 0x0804ed1d in handle_launcher_request (sock=7, who=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.3.1-r2/work/kdelibs-4.3.1/kinit/kinit.cpp:1169
#26 0x0804f13f in handle_requests (waitForPid=0) at /var/tmp/portage/kde-base/kdelibs-4.3.1-r2/work/kdelibs-4.3.1/kinit/kinit.cpp:1362
#27 0x0804fdc0 in main (argc=2, argv=0xbfd02264, envp=0xbfd02270) at /var/tmp/portage/kde-base/kdelibs-4.3.1-r2/work/kdelibs-4.3.1/kinit/kinit.cpp:1793

This bug may be a duplicate of or related to bug 198449

Reported using DrKonqi