Application that crashed: kontact
Version of the application: 4.3.5
KDE Version: 4.3.5 (KDE 4.3.5)
Qt Version: 4.5.3
Operating System: Linux 2.6.31.12-desktop-3mnb x86_64
Distribution: "Mandriva Linux 2010.0"

What I was doing when the application crashed:
I used the global search twice. After the first I looked at the results. I searched again with another area. The result didn't refresh. And the came the crash.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#5  KMail::MessageListView::Widget::getSelectionStats (this=0x2d03400, selectedSernums=@0x7fff82a9c690, selectedVisibleSernums=<value optimized out>, 
    allSelectedBelongToSameThread=<value optimized out>, includeCollapsedChildren=<value optimized out>) at /usr/src/debug/kdepim-4.3.5/kmail/messagelistview/widget.cpp:580
#6  0x00007f74b177e28e in KMMainWidget::updateMessageActions (this=0x1c53190) at /usr/src/debug/kdepim-4.3.5/kmail/kmmainwidget.cpp:4274
#7  0x00007f74b1794e2d in KMMainWidget::qt_metacall (this=0x1c53190, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff82a9c7c0)
    at /usr/src/debug/kdepim-4.3.5/build/kmail/kmmainwidget.moc:367
#8  0x00007f74c8a4388c in QMetaObject::activate () from /usr/lib64/libQtCore.so.4
#9  0x00007f74c8a3d833 in QObject::event () from /usr/lib64/libQtCore.so.4
#10 0x00007f74c7edd12c in QApplicationPrivate::notify_helper () from /usr/lib64/libQtGui.so.4
#11 0x00007f74c7ee43fe in QApplication::notify () from /usr/lib64/libQtGui.so.4
#12 0x00007f74c93bb3f6 in KApplication::notify () from /usr/lib64/libkdeui.so.5
#13 0x00007f74c8a2e6ac in QCoreApplication::notifyInternal () from /usr/lib64/libQtCore.so.4
#14 0x00007f74c8a594e2 in ?? () from /usr/lib64/libQtCore.so.4
#15 0x00007f74c8a56f48 in ?? () from /usr/lib64/libQtCore.so.4
#16 0x00007f74c13ed4ce in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#17 0x00007f74c13f0e98 in ?? () from /usr/lib64/libglib-2.0.so.0
#18 0x00007f74c13f0fc0 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#19 0x00007f74c8a56c73 in QEventDispatcherGlib::processEvents () from /usr/lib64/libQtCore.so.4
#20 0x00007f74c7f7064e in ?? () from /usr/lib64/libQtGui.so.4
#21 0x00007f74c8a2cfe2 in QEventLoop::processEvents () from /usr/lib64/libQtCore.so.4
#22 0x00007f74c8a2d3b4 in QEventLoop::exec () from /usr/lib64/libQtCore.so.4
#23 0x00007f74c8a2f569 in QCoreApplication::exec () from /usr/lib64/libQtCore.so.4
#24 0x0000000000403be7 in main (argc=<value optimized out>, argv=<value optimized out>) at /usr/src/debug/kdepim-4.3.5/kontact/src/main.cpp:218

Reported using DrKonqi