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 2.6.28-15-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
Crash for unknown reason, started K Menu, Plasma desktop crashed. Not much more useful information.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 17592)]

Thread 2 (Thread 0x7f71cd196950 (LWP 18016)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f71ec19cd19 in QWaitCondition::wait (this=0x19a3630, mutex=0x19a3628, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007f71eb02281c in QHostInfoAgent::run (this=0x19a3610) at kernel/qhostinfo.cpp:260
#3  0x00007f71ec19bd35 in QThreadPrivate::start (arg=0x19a3610) at thread/qthread_unix.cpp:188
#4  0x00007f71e80903ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007f71e8c74fcd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f71ec75f750 (LWP 17592)):
[KCrash Handler]
#5  KDirLister::directories (this=0xf60000006b0000) at /usr/include/qt4/QtCore/qlist.h:111
#6  0x00007f71e38d93e7 in KFilePreviewGenerator::Private::updateCutItems (this=0x1928d10) at /build/buildd/kde4libs-4.3.1/kfile/kfilepreviewgenerator.cpp:641
#7  0x00007f71e38da0ba in KFilePreviewGenerator::qt_metacall (this=0x1928bc0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7ffff4795710)
    at /build/buildd/kde4libs-4.3.1/obj-x86_64-linux-gnu/kfile/kfilepreviewgenerator.moc:89
#8  0x00007f71ec29aea2 in QMetaObject::activate (sender=0x153b4d0, from_signal_index=<value optimized out>, to_signal_index=7, argv=0x7ffff4795710) at kernel/qobject.cpp:3113
#9  0x00007f71e98bd01d in QApplication::x11ProcessEvent (this=0x146ff90, event=0x7ffff4796fd0) at kernel/qapplication_x11.cpp:3384
#10 0x00007f71e98e5454 in x11EventSourceDispatch (s=0x14b2420, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#11 0x00007f71e82df20a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#12 0x00007f71e82e28e0 in ?? () from /usr/lib/libglib-2.0.so.0
#13 0x00007f71e82e2a7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#14 0x00007f71ec2aea8f in QEventDispatcherGlib::processEvents (this=0x14ae930, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#15 0x00007f71e98e4bdf in QGuiEventDispatcherGlib::processEvents (this=0x7ffff4795600, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#16 0x00007f71ec283f42 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -193367360}) at kernel/qeventloop.cpp:149
#17 0x00007f71ec284314 in QEventLoop::exec (this=0x7ffff4797300, flags={i = -193367280}) at kernel/qeventloop.cpp:201
#18 0x00007f71ec2865e4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#19 0x00007f71e15bb3eb in kdemain (argc=1, argv=0x1423e00) at /build/buildd/kdebase-workspace-4.3.1/plasma/shells/desktop/main.cpp:50
#20 0x0000000000407215 in launch (argc=1, _name=0x14604b8 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=0, envs=0x14604d8 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x40a3a1 "0") at /build/buildd/kde4libs-4.3.1/kinit/kinit.cpp:677
#21 0x0000000000407a38 in handle_launcher_request (sock=7, who=<value optimized out>) at /build/buildd/kde4libs-4.3.1/kinit/kinit.cpp:1169
#22 0x0000000000407fe5 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.3.1/kinit/kinit.cpp:1362
#23 0x0000000000408b26 in main (argc=2, argv=0x7ffff47981a8, envp=0x7ffff47981c0) at /build/buildd/kde4libs-4.3.1/kinit/kinit.cpp:1793

This bug may be a duplicate of or related to bug 206118

Reported using DrKonqi