Version:            (using KDE 4.2.1)
OS:                Linux
Installed from:    Ubuntu Packages

I was moving some mails from the inbox to another folder.

Application : Kontact (kontact), signal SIGABRT

Thread 1 (Thread 0xb4a986c0 (LWP 14543)):
[KCrash Handler]
#6  0xb7f64430 in __kernel_vsyscall ()
#7  0xb59368a0 in raise () from /lib/tls/i686/cmov/libc.so.6
#8  0xb5938268 in abort () from /lib/tls/i686/cmov/libc.so.6
#9  0xb5bdb795 in qt_message_output () from /usr/lib/libQtCore.so.4
#10 0xb5bdb872 in qFatal () from /usr/lib/libQtCore.so.4
#11 0xb5bdb915 in qt_assert () from /usr/lib/libQtCore.so.4
#12 0xb13d94e9 in KMail::MessageListView::Core::Model::viewItemJobStep (this=0xa3d53d0) at /build/buildd/kdepim-4.2.1/kmail/messagelistview/core/model.cpp:3788
#13 0xb0f2c293 in KMail::MessageListView::Core::Model::qt_metacall (this=0xa3d53d0, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbff65f58)
    at /build/buildd/kdepim-4.2.1/obj-i486-linux-gnu/kmail/moc_model.cpp:75
#14 0xb5ce8a60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#15 0xb5ce97e2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#16 0xb5d237a7 in QTimer::timeout () from /usr/lib/libQtCore.so.4
#17 0xb5cef40e in QTimer::timerEvent () from /usr/lib/libQtCore.so.4
#18 0xb5ce353f in QObject::event () from /usr/lib/libQtCore.so.4
#19 0xb61868ec in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#20 0xb618e72e in QApplication::notify () from /usr/lib/libQtGui.so.4
#21 0xb6ca010d in KApplication::notify (this=0xbff66698, receiver=0xa3d3ec8, event=0xbff663ec) at /build/buildd/kde4libs-4.2.1a/kdeui/kernel/kapplication.cpp:307
#22 0xb5cd3e61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#23 0xb5d01d81 in ?? () from /usr/lib/libQtCore.so.4
#24 0xb5cfe520 in ?? () from /usr/lib/libQtCore.so.4
#25 0xb4faf718 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#26 0xb4fb2dc3 in ?? () from /usr/lib/libglib-2.0.so.0
#27 0xb4fb2f81 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#28 0xb5cfe478 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#29 0xb6220ea5 in ?? () from /usr/lib/libQtGui.so.4
#30 0xb5cd252a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#31 0xb5cd26ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#32 0xb5cd4da5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#33 0xb6186767 in QApplication::exec () from /usr/lib/libQtGui.so.4
#34 0x0804c072 in main (argc=1, argv=0xbff66994) at /build/buildd/kdepim-4.2.1/kontact/src/main.cpp:218