Version:            (using KDE 4.0.0)
Installed from:    Mandriva RPMs

this is the backtrace (i can't find any other way to attacch this file):

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Using host libthread_db library "/lib/i686/libthread_db.so.1".
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[Thread debugging using libthread_db enabled]
[New Thread -1244530992 (LWP 6899)]
[New Thread -1306575984 (LWP 6975)]
[New Thread -1298183280 (LWP 6974)]
[New Thread -1289790576 (LWP 6973)]
[New Thread -1281397872 (LWP 6972)]
[New Thread -1273005168 (LWP 6971)]
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[KCrash handler]
#6  0xb618c01c in memcpy () from /lib/i686/libc.so.6
#7  0xb7202b86 in QIODevice::read () from /usr/lib/qt4/lib/libQtCore.so.4
#8  0xb71ef280 in QDataStream::operator>> ()
   from /usr/lib/qt4/lib/libQtCore.so.4
#9  0xb71ea29c in operator>> () from /usr/lib/qt4/lib/libQtCore.so.4
#10 0xb74345a4 in ?? () from /opt/kde4/lib/libkdecore.so.5
#11 0xb744f990 in ?? () from /opt/kde4/lib/libkdecore.so.5
#12 0xb744fac4 in KService::KService () from /opt/kde4/lib/libkdecore.so.5
#13 0xb74542e2 in KServiceFactory::createEntry ()
   from /opt/kde4/lib/libkdecore.so.5
#14 0xb7453efd in KServiceFactory::serviceOffers ()
   from /opt/kde4/lib/libkdecore.so.5
#15 0xb74636e0 in KServiceTypeTrader::defaultOffers ()
   from /opt/kde4/lib/libkdecore.so.5
#16 0xb7463782 in KServiceTypeTrader::query ()
   from /opt/kde4/lib/libkdecore.so.5
#17 0xb7ed903d in ?? () from /opt/kde4/lib/libkdeinit4_krunner.so
#18 0xb7e1db4d in Plasma::AbstractRunner::performMatch ()
   from /opt/kde4/lib/libplasma.so.1
#19 0xb7ed3655 in ?? () from /opt/kde4/lib/libkdeinit4_krunner.so
#20 0xb734cd48 in ?? () from /opt/kde4/lib/libthreadweaver.so.4
#21 0xb734cfb1 in ThreadWeaver::Job::execute ()
   from /opt/kde4/lib/libthreadweaver.so.4
#22 0xb734c211 in ?? () from /opt/kde4/lib/libthreadweaver.so.4
#23 0xb734c344 in ThreadWeaver::Thread::run ()
   from /opt/kde4/lib/libthreadweaver.so.4
#24 0xb71aba69 in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#25 0xb715f4e2 in start_thread () from /lib/i686/libpthread.so.0
#26 0xb61ed46e in clone () from /lib/i686/libc.so.6

Thread 2 (Thread -1306575984 (LWP 6975)):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb61e5d41 in select () from /lib/i686/libc.so.6
#2  0xb723c4cc in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#3  0xb71aba69 in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#4  0xb715f4e2 in start_thread () from /lib/i686/libpthread.so.0
#5  0xb61ed46e in clone () from /lib/i686/libc.so.6

Thread 1 (Thread -1244530992 (LWP 6899)):
#0  0xb6031d64 in clock_gettime () from /lib/i686/librt.so.1
#1  0xb7277872 in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#2  0xb7277922 in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#3  0xb72786f3 in ?? () from /usr/lib/qt4/lib/libQtCore.so.4
#4  0xb727985a in QEventDispatcherUNIX::processEvents ()
   from /usr/lib/qt4/lib/libQtCore.so.4
#5  0xb690f903 in ?? () from /usr/lib/qt4/lib/libQtGui.so.4
#6  0xb7254803 in QEventLoop::processEvents ()
   from /usr/lib/qt4/lib/libQtCore.so.4
#7  0xb725490a in QEventLoop::exec () from /usr/lib/qt4/lib/libQtCore.so.4
#8  0xb7256bc6 in QCoreApplication::exec ()
   from /usr/lib/qt4/lib/libQtCore.so.4
#9  0xb6892804 in QApplication::exec () from /usr/lib/qt4/lib/libQtGui.so.4
#10 0xb7ed8b44 in kdemain () from /opt/kde4/lib/libkdeinit4_krunner.so
#11 0x080487f1 in _start ()
#0  0xb6031d64 in clock_gettime () from /lib/i686/librt.so.1