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 2.6.28-15-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
kde crashed a couple of time before, first time, tho, it restarted without having to manually shut fown 'puter

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 3613)]

Thread 2 (Thread 0xa9412b90 (LWP 3616)):
#0  0xb7f8d430 in __kernel_vsyscall ()
#1  0xb64a50e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb66852ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7d8c172 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#4  0xb76c8ac2 in ?? () from /usr/lib/libQtNetwork.so.4
#5  0xb7d8b132 in ?? () from /usr/lib/libQtCore.so.4
#6  0xb64a14ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb667649e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb5faea10 (LWP 3613)):
[KCrash Handler]
#6  0xb6f51f15 in QGraphicsItem::update () from /usr/lib/libQtGui.so.4
#7  0xa063c7d9 in ?? () from /var/lib/python-support/python2.6/PyQt4/QtGui.so
#8  0xa0b01aed in PyCFunction_Call () from /usr/lib/libpython2.6.so.1.0
#9  0xa0b63bf0 in PyEval_EvalFrameEx () from /usr/lib/libpython2.6.so.1.0
#10 0xa0b65910 in PyEval_EvalCodeEx () from /usr/lib/libpython2.6.so.1.0
#11 0xa0aeb87a in ?? () from /usr/lib/libpython2.6.so.1.0
#12 0xa0abb98c in PyObject_Call () from /usr/lib/libpython2.6.so.1.0
#13 0xa0acc7a8 in ?? () from /usr/lib/libpython2.6.so.1.0
#14 0xa0abb98c in PyObject_Call () from /usr/lib/libpython2.6.so.1.0
#15 0xa0b5da34 in PyEval_CallObjectWithKeywords () from /usr/lib/libpython2.6.so.1.0
#16 0xa0cf447f in sip_api_invoke_slot () from /var/lib/python-support/python2.6/sip.so
#17 0xa0a1de0c in ?? () from /var/lib/python-support/python2.6/PyQt4/QtCore.so
#18 0xa0a1df33 in ?? () from /var/lib/python-support/python2.6/PyQt4/QtCore.so
#19 0xb7e951b8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#20 0xb7e95e42 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#21 0xa0a23bc3 in ?? () from /var/lib/python-support/python2.6/PyQt4/QtCore.so
#22 0xa0a21f27 in ?? () from /var/lib/python-support/python2.6/PyQt4/QtCore.so
#23 0xa0a02986 in ?? () from /var/lib/python-support/python2.6/PyQt4/QtCore.so
#24 0xa0b01aed in PyCFunction_Call () from /usr/lib/libpython2.6.so.1.0
#25 0xa0b63bf0 in PyEval_EvalFrameEx () from /usr/lib/libpython2.6.so.1.0
#26 0xa0b65910 in PyEval_EvalCodeEx () from /usr/lib/libpython2.6.so.1.0
#27 0xa0aeb87a in ?? () from /usr/lib/libpython2.6.so.1.0
#28 0xa0abb98c in PyObject_Call () from /usr/lib/libpython2.6.so.1.0
#29 0xa0acc7a8 in ?? () from /usr/lib/libpython2.6.so.1.0
#30 0xa0abb98c in PyObject_Call () from /usr/lib/libpython2.6.so.1.0
#31 0xa0b5da34 in PyEval_CallObjectWithKeywords () from /usr/lib/libpython2.6.so.1.0
#32 0xa0cf447f in sip_api_invoke_slot () from /var/lib/python-support/python2.6/sip.so
#33 0xa0a1d5bb in ?? () from /var/lib/python-support/python2.6/PyQt4/QtCore.so
#34 0xa0a1de52 in ?? () from /var/lib/python-support/python2.6/PyQt4/QtCore.so
#35 0xa0a1df33 in ?? () from /var/lib/python-support/python2.6/PyQt4/QtCore.so
#36 0xb7e951b8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#37 0xb7e95e42 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#38 0xb7bd6163 in KJob::result () from /usr/lib/libkdecore.so.5
#39 0xb7bd6609 in KJob::emitResult () from /usr/lib/libkdecore.so.5
#40 0xb7828d75 in KIO::SimpleJob::slotFinished () from /usr/lib/libkio.so.5
#41 0xb78296b3 in KIO::TransferJob::slotFinished () from /usr/lib/libkio.so.5
#42 0xb7825c5b in KIO::TransferJob::qt_metacall () from /usr/lib/libkio.so.5
#43 0xb7825f8a in KIO::StoredTransferJob::qt_metacall () from /usr/lib/libkio.so.5
#44 0xb7e951b8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#45 0xb7e95e42 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#46 0xb78eebf7 in KIO::SlaveInterface::finished () from /usr/lib/libkio.so.5
#47 0xb78f2937 in KIO::SlaveInterface::dispatch () from /usr/lib/libkio.so.5
#48 0xb78ef0d7 in KIO::SlaveInterface::dispatch () from /usr/lib/libkio.so.5
#49 0xb78e0e4d in KIO::Slave::gotInput () from /usr/lib/libkio.so.5
#50 0xb78e32e3 in KIO::Slave::qt_metacall () from /usr/lib/libkio.so.5
#51 0xb7e951b8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#52 0xb7e95e42 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#53 0xb77eca77 in KIO::Connection::readyRead () from /usr/lib/libkio.so.5
#54 0xb77ee3e3 in ?? () from /usr/lib/libkio.so.5
#55 0xb77ee7c6 in KIO::Connection::qt_metacall () from /usr/lib/libkio.so.5
#56 0xb7e8e8cb in QMetaCallEvent::placeMetaCall () from /usr/lib/libQtCore.so.4
#57 0xb7e903b0 in QObject::event () from /usr/lib/libQtCore.so.4
#58 0xb693bd3c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#59 0xb694403e in QApplication::notify () from /usr/lib/libQtGui.so.4
#60 0xb744c49d in KApplication::notify () from /usr/lib/libkdeui.so.5
#61 0xb7e7fbcb in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#62 0xb7e80825 in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4
#63 0xb7e80a1d in QCoreApplication::sendPostedEvents () from /usr/lib/libQtCore.so.4
#64 0xb7eab6af in ?? () from /usr/lib/libQtCore.so.4
#65 0xb64eeb88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#66 0xb64f20eb in ?? () from /usr/lib/libglib-2.0.so.0
#67 0xb64f2268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#68 0xb7eab2f8 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#69 0xb69dda75 in ?? () from /usr/lib/libQtGui.so.4
#70 0xb7e7e1fa in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#71 0xb7e7e642 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#72 0xb7e80ae9 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#73 0xb693bbb7 in QApplication::exec () from /usr/lib/libQtGui.so.4
#74 0xb4aff2f0 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#75 0x0804e27d in _start ()

Reported using DrKonqi