Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.85 (KDE 4.2.85 (KDE 4.3 Beta1))
Qt Version: 4.5.1
Operating System: Linux 2.6.30-5-generic i686
Distribution: Ubuntu karmic (development branch)

What I was doing when the application crashed:
Plasma crashes upon an application (Kontact) launch. Relaunch is successful. 
Using Ubuntu 9.10 testing, updated on the 21.05. 

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 0 (LWP 3702)]

Thread 2 (Thread 0xac2d6b90 (LWP 3706)):
#0  0x00172422 in __kernel_vsyscall ()
#1  0x06b8f0e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0039a43d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x03609167 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#4  0x0820623a in ?? () from /usr/lib/libQtNetwork.so.4
#5  0x036080fe in ?? () from /usr/lib/libQtCore.so.4
#6  0x06b8b4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0x0038b5ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb72f1720 (LWP 3702)):
[KCrash Handler]
#6  0x026b4f37 in TaskManager::Task::window () from /usr/lib/libtaskmanager.so.4
#7  0x0370acaf in QObject::event () from /usr/lib/libQtCore.so.4
#8  0x054978a4 in QGraphicsWidget::event () from /usr/lib/libQtGui.so.4
#9  0x04e08c1c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#10 0x04e103f4 in QApplication::notify () from /usr/lib/libQtGui.so.4
#11 0x00fc250a in KApplication::notify () from /usr/lib/libkdeui.so.5
#12 0x036fab1b in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#13 0x037286a6 in ?? () from /usr/lib/libQtCore.so.4
#14 0x03726050 in ?? () from /usr/lib/libQtCore.so.4
#15 0x089b7f68 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#16 0x089bb578 in ?? () from /usr/lib/libglib-2.0.so.0
#17 0x089bb6ea in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#18 0x03725f9c in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#19 0x04eaa975 in ?? () from /usr/lib/libQtGui.so.4
#20 0x036f90a9 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#21 0x036f94f2 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#22 0x036fb87f in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#23 0x04e08a97 in QApplication::exec () from /usr/lib/libQtGui.so.4
#24 0x00d8194d in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#25 0x080485cb in _start ()

This bug may be a duplicate of or related to bug 190949