Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.00 (KDE 4.3.0)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-15-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
nothing special

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 3887)]

Thread 2 (Thread 0x7f23b444b950 (LWP 3888)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f23da565d19 in QWaitCondition::wait (this=0x38b6800, mutex=0x38b67f8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007f23d93ef81c in QHostInfoAgent::run (this=0x38b67e0) at kernel/qhostinfo.cpp:260
#3  0x00007f23da564d35 in QThreadPrivate::start (arg=0x38b67e0) at thread/qthread_unix.cpp:188
#4  0x00007f23d645e3ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007f23d7042fcd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f23dab27750 (LWP 3887)):
[KCrash Handler]
#5  0x00007f23d97a7474 in KDirModel::dirLister (this=0x55f11f0) at /build/buildd/kde4libs-4.3.0/kio/kio/kdirmodel.cpp:353
#6  0x00007f23d1ca63bc in KFilePreviewGenerator::Private::updateCutItems (this=0x38999f0) at /build/buildd/kde4libs-4.3.0/kfile/kfilepreviewgenerator.cpp:640
#7  0x00007f23d1ca70aa in KFilePreviewGenerator::qt_metacall (this=0x38998a0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffe2b5eb00)
    at /build/buildd/kde4libs-4.3.0/obj-x86_64-linux-gnu/kfile/kfilepreviewgenerator.moc:89
#8  0x00007f23da663ea2 in QMetaObject::activate (sender=0x231e3d0, from_signal_index=<value optimized out>, to_signal_index=7, argv=0x7fffe2b5eb00) at kernel/qobject.cpp:3113
#9  0x00007f23d7c8b01d in QApplication::x11ProcessEvent (this=0x228aeb0, event=0x7fffe2b603c0) at kernel/qapplication_x11.cpp:3384
#10 0x00007f23d7cb3454 in x11EventSourceDispatch (s=0x22cf7e0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#11 0x00007f23d66ad20a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#12 0x00007f23d66b08e0 in ?? () from /usr/lib/libglib-2.0.so.0
#13 0x00007f23d66b0a7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#14 0x00007f23da677a8f in QEventDispatcherGlib::processEvents (this=0x22cb750, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#15 0x00007f23d7cb2bdf in QGuiEventDispatcherGlib::processEvents (this=0x55f11f0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#16 0x00007f23da64cf42 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -491387216}) at kernel/qeventloop.cpp:149
#17 0x00007f23da64d314 in QEventLoop::exec (this=0x7fffe2b606f0, flags={i = -491387136}) at kernel/qeventloop.cpp:201
#18 0x00007f23da64f5e4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#19 0x00007f23ce48e1eb in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#20 0x0000000000407215 in launch (argc=1, _name=0x2280d68 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=0, envs=0x2280d88 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x40a3a1 "0") at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:676
#21 0x0000000000407a38 in handle_launcher_request (sock=7, who=<value optimized out>) at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:1168
#22 0x0000000000407fe5 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:1361
#23 0x0000000000408b26 in main (argc=2, argv=0x7fffe2b61598, envp=0x7fffe2b615b0) at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:1788

Reported using DrKonqi