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 2.6.31-15-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
I dragged something on the panel, and this crash occurred. I was trying to add a logout/lock screen applet.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7faaff1aa750 (LWP 1721))]

Thread 2 (Thread 0x7faadf00d910 (LWP 1722)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007faafebe74fb in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x2e69898, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x2e69898, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007faafb01e78c in QHostInfoAgent::run (this=0x2e69880) at kernel/qhostinfo.cpp:260
#4  0x00007faafebe6445 in QThreadPrivate::start (arg=0x2e69880) at thread/qthread_unix.cpp:188
#5  0x00007faafb95ca04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007faafc53c7bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7faaff1aa750 (LWP 1721)):
[KCrash Handler]
#5  QCoreApplication::postEvent (receiver=0x41f21d0, event=0x40502c0, priority=0) at kernel/qcoreapplication.cpp:1012
#6  0x00007faafccfc027 in QX11Data::xdndHandleFinished (this=<value optimized out>, xe=<value optimized out>, passive=<value optimized out>) at kernel/qdnd_x11.cpp:1244
#7  0x00007faafccd7b43 in QApplication::x11ClientMessage (this=<value optimized out>, w=0x2e97ff0, event=0x0, passive_only=176) at kernel/qapplication_x11.cpp:3126
#8  0x00007faafcce8584 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff90c73030) at kernel/qapplication_x11.cpp:3682
#9  0x00007faafcd11d0c in x11EventSourceDispatch (s=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#10 0x00007faafbbadbbe in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#11 0x00007faafbbb1588 in ?? () from /lib/libglib-2.0.so.0
#12 0x00007faafbbb16b0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#13 0x00007faafecf51a6 in QEventDispatcherGlib::processEvents (this=0x2389040, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#14 0x00007faafcd114be in QGuiEventDispatcherGlib::processEvents (this=0x41f21d0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#15 0x00007faafeccb532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#16 0x00007faafeccb904 in QEventLoop::exec (this=0x7fff90c73360, flags=) at kernel/qeventloop.cpp:201
#17 0x00007faafeccdab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#18 0x00007faaf3d394cf in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#19 0x0000000000406da8 in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=0, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x40a299 "0") at ../../kinit/kinit.cpp:677
#20 0x0000000000407aa0 in handle_launcher_request (sock=7, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#21 0x0000000000407f51 in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1362
#22 0x0000000000408bb2 in main (argc=2, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1793
The current source language is "auto; currently asm".
The current source language is "auto; currently c".

This bug may be a duplicate of or related to bug 182511

Reported using DrKonqi