Application that crashed: kontact
Version of the application: 4.3.0
KDE Version: 4.3.00 (KDE 4.3.0)
Qt Version: 4.5.2
Operating System: Linux 2.6.30.5 i686

What I was doing when the application crashed:
I changed the Expire values for a folder from
Read: 2 days, Unread: 7 days
to
Read: 1 days, Unread: 1 days
and clicked OK. Kontact crashed.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#6  KMail::FolderJob::msgList (this=0x10) at /usr/include/qt4/QtCore/qlist.h:111
#7  0xb252e471 in FolderStorage::ignoreJobsForMessage (this=0x8b697b8, msg=0xa025340) at /var/tmp/portage/kde-base/kmail-4.3.0/work/kmail-4.3.0/kmail/folderstorage.cpp:1113
#8  0xb24f954a in KMFolder::ignoreJobsForMessage (this=0x8b69958, m=0xa025340) at /var/tmp/portage/kde-base/kmail-4.3.0/work/kmail-4.3.0/kmail/kmfolder.cpp:388
#9  0xb287411f in KMail::MessageListView::StorageModel::releaseMessage (this=0x9f50020, row=6) at /var/tmp/portage/kde-base/kmail-4.3.0/work/kmail-4.3.0/kmail/messagelistview/storagemodel.cpp:231
#10 0xb2876a44 in KMail::MessageListView::Widget::viewMessageSelected (this=0x8b40cc8, msg=0xa20f590) at /var/tmp/portage/kde-base/kmail-4.3.0/work/kmail-4.3.0/kmail/messagelistview/widget.cpp:140
#11 0xb28cfb02 in KMail::MessageListView::Core::View::slotSelectionChanged (this=0x8b87f68) at /var/tmp/portage/kde-base/kmail-4.3.0/work/kmail-4.3.0/kmail/messagelistview/core/view.cpp:1811
#12 0xb2405fba in KMail::MessageListView::Core::View::qt_metacall (this=0x8b87f68, _c=QMetaObject::InvokeMetaMethod, _id=100, _a=0xbfa98214)
    at /var/tmp/portage/kde-base/kmail-4.3.0/work/kmail-4.3.0_build/kmail/moc_view.cpp:85
#13 0x47577a01 in QMetaObject::activate (sender=<value optimized out>, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=<value optimized out>)
    at kernel/qobject.cpp:3101
#14 0x47577fc3 in QMetaObject::activate (sender=<value optimized out>, m=<value optimized out>, local_signal_index=<value optimized out>, argv=) at kernel/qobject.cpp:3178
#15 0xb78bcd4e in QItemSelectionModel::selectionChanged (this=0x8b8c9c8, _t1=@0xbfa982d8, _t2=@0xbfa982e8) at .moc/release-shared/moc_qitemselectionmodel.cpp:146
#16 0xb78c170f in QItemSelectionModel::emitSelectionChanged (this=0x8b8c9c8, newSelection=@0xbfa982d8, oldSelection=@0xbfa982e8) at itemviews/qitemselectionmodel.cpp:1493
#17 0xb78c2fc6 in QItemSelectionModel::select (this=0x8b8c9c8, selection=@0xbfa9832c, command={i = 35}) at itemviews/qitemselectionmodel.cpp:1055
#18 0xb78bfeb7 in QItemSelectionModel::select (this=0x8b8c9c8, index=@0x92ba198, command={i = 35}) at itemviews/qitemselectionmodel.cpp:943
#19 0xb78bd008 in QItemSelectionModel::setCurrentIndex (this=0x8b8c9c8, index=@0xbfa984b8, command={i = 35}) at itemviews/qitemselectionmodel.cpp:1122
#20 0xb786dec8 in QAbstractItemView::setCurrentIndex (this=0x8b87f68, index=@0xbfa984b8) at itemviews/qabstractitemview.cpp:893
#21 0xb289fc1b in KMail::MessageListView::Core::Model::viewItemJobStep (this=0x8b8ba48) at /var/tmp/portage/kde-base/kmail-4.3.0/work/kmail-4.3.0/kmail/messagelistview/core/model.cpp:4099
#22 0xb240538c in KMail::MessageListView::Core::Model::qt_metacall (this=0x8b8ba48, _c=QMetaObject::InvokeMetaMethod, _id=20, _a=0xbfa98608)
    at /var/tmp/portage/kde-base/kmail-4.3.0/work/kmail-4.3.0_build/kmail/moc_model.cpp:76
#23 0x47577a01 in QMetaObject::activate (sender=<value optimized out>, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=<value optimized out>)
    at kernel/qobject.cpp:3101
#24 0x47577fc3 in QMetaObject::activate (sender=<value optimized out>, m=<value optimized out>, local_signal_index=<value optimized out>, argv=) at kernel/qobject.cpp:3178
#25 0x475af838 in QTimer::timeout (this=) at .moc/release-shared/moc_qtimer.cpp:128
#26 0x4757e84e in QTimer::timerEvent (this=<value optimized out>, e=<value optimized out>) at kernel/qtimer.cpp:261
#27 0x4757470f in QObject::event (this=<value optimized out>, e=<value optimized out>) at kernel/qobject.cpp:1066
#28 0xb737612c in QApplicationPrivate::notify_helper (this=0x88a0620, receiver=0x8b8ba64, e=0xbfa98a7c) at kernel/qapplication.cpp:4056
#29 0xb737c2fd in QApplication::notify (this=0xbfa98e3c, receiver=0x8b8ba64, e=0xbfa98a7c) at kernel/qapplication.cpp:3952
#30 0xb7cf7802 in KApplication::notify (this=0xbfa98e3c, receiver=0x8b8ba64, event=0xbfa98a7c) at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/kdeui/kernel/kapplication.cpp:302
#31 0x475651f2 in QCoreApplication::notifyInternal (this=) at kernel/qcoreapplication.cpp:606
#32 0x47590191 in QTimerInfoList::activateTimers (this=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#33 0x4758cdd1 in timerSourceDispatch (source=) at kernel/qeventdispatcher_glib.cpp:165
#34 0x4728043f in IA__g_main_context_dispatch (context=<value optimized out>) at gmain.c:1824
#35 0x47283b8b in g_main_context_iterate (context=<value optimized out>, block=<value optimized out>, dispatch=<value optimized out>, self=) at gmain.c:2455
#36 0x47283d19 in IA__g_main_context_iteration (context=<value optimized out>, may_block=<value optimized out>) at gmain.c:2518
#37 0x4758cd29 in QEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#38 0xb740a69b in QGuiEventDispatcherGlib::processEvents (this=0x88a0398, flags={i = 36}) at kernel/qguieventdispatcher_glib.cpp:202
#39 0x4756393b in QEventLoop::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qeventloop.cpp:149
#40 0x47563b1a in QEventLoop::exec (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:197
#41 0x47565d91 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#42 0xb7375f95 in QApplication::exec () at kernel/qapplication.cpp:3525
#43 0x0804bfd7 in main (argc=3, argv=0xbfa99034) at /var/tmp/portage/kde-base/kontact-4.3.0/work/kontact-4.3.0/kontact/src/main.cpp:218

Reported using DrKonqi