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 2.6.28-12-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
I use amarok a lot,

I started amarok with firefox and thunderbird runnig and plasma crashed. I am not sure but this has happened after last update, I am using amarok 2.1 from kubuntu ppa.

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 0 (LWP 3583)]

Thread 2 (Thread 0x7fd2b3c59950 (LWP 3596)):
#0  0x00007fd2d18a92e9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fd2d5190ce9 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#2  0x00007fd2d870b5dc in ?? () from /usr/lib/libQtNetwork.so.4
#3  0x00007fd2d518fd02 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007fd2d18a53ba in start_thread () from /lib/libpthread.so.0
#5  0x00007fd2d46fafcd in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fd2d9e1c760 (LWP 3583)):
[KCrash Handler]
#5  0x00007fd2ba5b7b00 in TaskManager::Task::window () from /usr/lib/libtaskmanager.so.4
#6  0x00007fd2ba7f5ade in ?? () from /usr/lib/kde4/plasma_applet_tasks.so
#7  0x00007fd2d5288bb3 in QObject::event () from /usr/lib/libQtCore.so.4
#8  0x00007fd2d5f9de7b in QGraphicsWidget::event () from /usr/lib/libQtGui.so.4
#9  0x00007fd2d5982b9d in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#10 0x00007fd2d598adea in QApplication::notify () from /usr/lib/libQtGui.so.4
#11 0x00007fd2d80471ab in KApplication::notify () from /usr/lib/libkdeui.so.5
#12 0x00007fd2d5278dfc in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#13 0x00007fd2d52a5eb6 in ?? () from /usr/lib/libQtCore.so.4
#14 0x00007fd2d52a25cd in ?? () from /usr/lib/libQtCore.so.4
#15 0x00007fd2cfc7520a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#16 0x00007fd2cfc788e0 in ?? () from /usr/lib/libglib-2.0.so.0
#17 0x00007fd2cfc78a7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#18 0x00007fd2d52a252f in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#19 0x00007fd2d5a1b70f in ?? () from /usr/lib/libQtGui.so.4
#20 0x00007fd2d52776a2 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#21 0x00007fd2d5277a6d in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#22 0x00007fd2d5279d34 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#23 0x00007fd2d99f129b in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#24 0x00007fd2d46335a6 in __libc_start_main () from /lib/libc.so.6
#25 0x00000000004007c9 in _start ()