Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.95 (KDE 4.2.95 (KDE 4.3 RC1))
Qt Version: 4.5.0
Operating System: Linux 2.6.28-13-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
I was using apt-get remove to uninstall the eclipse from my computer in a console when plasma crashed.  i have NetBeans IDE, amarok, Kmail and firefox running at that time. 

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 3343)]

Thread 2 (Thread 0x7f83d12ac950 (LWP 3348)):
#0  0x00007f83ecb002e9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f83f0c7b939 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#2  0x00007f83efaf84cc in ?? () from /usr/lib/libQtNetwork.so.4
#3  0x00007f83f0c7a952 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007f83ecafc3ba in start_thread () from /lib/libpthread.so.0
#5  0x00007f83ed6e0fcd in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f83f1245750 (LWP 3343)):
[KCrash Handler]
#5  0x00007f83f0d6c544 in QMetaObject::invokeMethod () from /usr/lib/libQtCore.so.4
#6  0x00007f83e860a386 in Plasma::Animator::timerEvent () from /usr/lib/libplasma.so.3
#7  0x00007f83f0d734d3 in QObject::event () from /usr/lib/libQtCore.so.4
#8  0x00007f83ee2ed78d in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#9  0x00007f83ee2f597a in QApplication::notify () from /usr/lib/libQtGui.so.4
#10 0x00007f83ef43062b in KApplication::notify () from /usr/lib/libkdeui.so.5
#11 0x00007f83f0d6375c in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#12 0x00007f83f0d907f6 in ?? () from /usr/lib/libQtCore.so.4
#13 0x00007f83f0d8cf0d in ?? () from /usr/lib/libQtCore.so.4
#14 0x00007f83ecd4b20a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#15 0x00007f83ecd4e8e0 in ?? () from /usr/lib/libglib-2.0.so.0
#16 0x00007f83ecd4ea7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#17 0x00007f83f0d8ce6f in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#18 0x00007f83ee385bef in ?? () from /usr/lib/libQtGui.so.4
#19 0x00007f83f0d62002 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#20 0x00007f83f0d623cd in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#21 0x00007f83f0d64694 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#22 0x00007f83e592e63b in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#23 0x000000000040714e in _start ()

Reported using DrKonqi