Application that crashed: kontact
Version of the application: 4.3.0 rc2
KDE Version: 4.2.96 (KDE 4.2.96 (KDE 4.3 RC2))
Qt Version: 4.5.2
Operating System: Linux 2.6.30.1 i686

What I was doing when the application crashed:
I have a large "Inbox" folder in MBox format. I right-cliked it and selected "Compact folder," and it worked for a few seconds before crashing.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#6  0xb239e206 in KMail::MessageListView::StorageModel::initializeMessageItem (this=0x8eefdf0, mi=0x99b8a48, row=11, bUseReceiver=false)
    at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/messagelistview/storagemodel.cpp:299
#7  0xb23c82f7 in KMail::MessageListView::Core::Model::viewItemJobStepInternalForJobPass1Fill (this=0x9179018, job=0x980c378, tStart=@0xbf8ae518)
    at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/messagelistview/core/model.cpp:2735
#8  0xb23c9b56 in KMail::MessageListView::Core::Model::viewItemJobStepInternalForJob (this=0x9179018, job=0x980c378, tStart=@0xbf8ae518)
    at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/messagelistview/core/model.cpp:3397
#9  0xb23ca348 in KMail::MessageListView::Core::Model::viewItemJobStepInternal (this=0x9179018) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/messagelistview/core/model.cpp:3769
#10 0xb23cb091 in KMail::MessageListView::Core::Model::viewItemJobStep (this=0x9179018) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/messagelistview/core/model.cpp:3957
#11 0xb23cc4c7 in KMail::MessageListView::Core::Model::setStorageModel (this=0x9179018, storageModel=0x8eefdf0, preSelectionMode=KMail::MessageListView::Core::PreSelectLastSelected)
    at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/messagelistview/core/model.cpp:791
#12 0xb23cce8e in KMail::MessageListView::Core::Model::slotStorageModelLayoutChanged (this=0x9179018)
    at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/messagelistview/core/model.cpp:4440
#13 0xb1f3fb5b in KMail::MessageListView::Core::Model::qt_metacall (this=0x9179018, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xbf8ae8c8)
    at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96_build/kmail/moc_model.cpp:80
#14 0xb6fbb461 in QMetaObject::activate (sender=0x8eefdf0, from_signal_index=<value optimized out>, to_signal_index=17, argv=0x0) at kernel/qobject.cpp:3101
#15 0xb6fbba23 in QMetaObject::activate (sender=0x8eefdf0, m=0xb7054518, local_signal_index=13, argv=0x0) at kernel/qobject.cpp:3178
#16 0xb6ff2168 in QAbstractItemModel::modelReset (this=0x8eefdf0) at .moc/release-shared/moc_qabstractitemmodel.cpp:213
#17 0xb6fa2e84 in QAbstractItemModel::reset (this=0x8eefdf0) at kernel/qabstractitemmodel.cpp:2263
#18 0xb239cd2e in KMail::MessageListView::StorageModel::slotViewConfigChanged (this=0x8eefdf0) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/messagelistview/storagemodel.cpp:644
#19 0xb1f40183 in KMail::MessageListView::StorageModel::qt_metacall (this=0x8eefdf0, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbf8aea08)
    at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96_build/kmail/moc_storagemodel.cpp:92
#20 0xb6fbb461 in QMetaObject::activate (sender=0x91a5f98, from_signal_index=<value optimized out>, to_signal_index=22, argv=0x0) at kernel/qobject.cpp:3101
#21 0xb6fbba23 in QMetaObject::activate (sender=0x91a5f98, m=0xb2640da0, local_signal_index=18, argv=0x0) at kernel/qobject.cpp:3178
#22 0xb2030448 in KMFolder::viewConfigChanged (this=0x91a5f98) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96_build/kmail/kmfolder.moc:269
#23 0xb20359fa in KMFolder::setUserWhoField (this=0x91a5f98, whoField=@0xbf8aec64, writeConfig=false) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/kmfolder.cpp:745
#24 0xb20368b8 in KMFolder::readConfig (this=0x91a5f98, configGroup=@0xbf8aed74) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/kmfolder.cpp:211
#25 0xb206578f in FolderStorage::readConfig (this=0x91a5e68) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/folderstorage.cpp:963
#26 0xb2061092 in FolderStorage::countUnread (this=0x91a5e68) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/folderstorage.cpp:866
#27 0xb202fca7 in KMFolder::countUnread (this=0x91a5f98) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/kmfolder.cpp:497
#28 0xb223a37d in KMMainWidget::updateMarkAsReadAction (this=0x9157c48) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/kmmainwidget.cpp:4431
#29 0xb22634f0 in KMMainWidget::qt_metacall (this=0x9157c48, _c=QMetaObject::InvokeMetaMethod, _id=130, _a=0xbf8aeeb8)
    at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96_build/kmail/kmmainwidget.moc:478
#30 0xb6fbb461 in QMetaObject::activate (sender=0x91a5f98, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3101
#31 0xb6fbba23 in QMetaObject::activate (sender=0x91a5f98, m=0xb2640da0, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3178
#32 0xb20309c8 in KMFolder::changed (this=0x91a5f98) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96_build/kmail/kmfolder.moc:149
#33 0xb2030ef0 in KMFolder::qt_metacall (this=0x91a5f98, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbf8aefa8)
    at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96_build/kmail/kmfolder.moc:111
#34 0xb6fbb461 in QMetaObject::activate (sender=0x91a5e68, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3101
#35 0xb6fbba23 in QMetaObject::activate (sender=0x91a5e68, m=0xb2641388, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3178
#36 0xb2061b18 in FolderStorage::changed (this=0x91a5e68) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96_build/kmail/folderstorage.moc:159
#37 0xb21067e5 in KMFolderMbox::compact (this=0x91a5e68, silent=<value optimized out>) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/kmfoldermbox.cpp:1325
#38 0xb20310d3 in KMFolder::compact (this=0x91a5f98, options=KMFolder::CompactNow) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/kmfolder.cpp:865
#39 0xb223c2a1 in KMMainWidget::slotCompactFolder (this=0x9157c48) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/kmmainwidget.cpp:1470
#40 0xb2263a18 in KMMainWidget::qt_metacall (this=0x9157c48, _c=QMetaObject::InvokeMetaMethod, _id=57, _a=0xbf8af1cc)
    at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96_build/kmail/kmmainwidget.moc:404
#41 0xb6fbb461 in QMetaObject::activate (sender=0x9534760, from_signal_index=<value optimized out>, to_signal_index=6, argv=0x0) at kernel/qobject.cpp:3101
#42 0xb6fbb791 in QMetaObject::activate (sender=0x9534760, m=0xb7a67068, from_local_signal_index=1, to_local_signal_index=2, argv=0xbf8af1cc) at kernel/qobject.cpp:3198
#43 0xb73af5d2 in QAction::triggered (this=0x9534760, _t1=false) at .moc/release-shared/moc_qaction.cpp:236
#44 0xb73b0893 in QAction::activate (this=0x9534760, event=QAction::Trigger) at kernel/qaction.cpp:1160
#45 0xb779449a in QMenuPrivate::activateCausedStack (this=0x980c180, causedStack=@0xbf8af2a8, action=0x9534760, action_e=QAction::Trigger, self=true) at widgets/qmenu.cpp:967
#46 0xb779a9b9 in QMenuPrivate::activateAction (this=0x980c180, action=0x9534760, action_e=QAction::Trigger, self=<value optimized out>) at widgets/qmenu.cpp:1060
#47 0xb779b7b6 in QMenu::mouseReleaseEvent (this=0x975aeb8, e=0xbf8af97c) at widgets/qmenu.cpp:2254
#48 0xb7d360d6 in KMenu::mouseReleaseEvent (this=0x975aeb8, e=0xbf8af97c) at /var/tmp/portage/kde-base/kdelibs-4.2.96/work/kdelibs-4.2.96/kdeui/widgets/kmenu.cpp:456
#49 0xb74088ea in QWidget::event (this=0x975aeb8, event=0xbf8af97c) at kernel/qwidget.cpp:7549
#50 0xb779c271 in QMenu::event (this=0x975aeb8, e=0xbf8af97c) at widgets/qmenu.cpp:2353
#51 0xb73b50cc in QApplicationPrivate::notify_helper (this=0x8e844e8, receiver=0x975aeb8, e=0xbf8af97c) at kernel/qapplication.cpp:4056
#52 0xb73be4cc in QApplication::notify (this=0xbf8b348c, receiver=0x975aeb8, e=0xbf8af97c) at kernel/qapplication.cpp:3758
#53 0xb7c4d59e in KApplication::notify (this=0xbf8b348c, receiver=0x975aeb8, event=0xbf8af97c) at /var/tmp/portage/kde-base/kdelibs-4.2.96/work/kdelibs-4.2.96/kdeui/kernel/kapplication.cpp:302
#54 0xb6fa8c52 in QCoreApplication::notifyInternal (this=0xbf8b348c, receiver=0x975aeb8, event=0xbf8af97c) at kernel/qcoreapplication.cpp:606
#55 0xb73bd5e4 in QApplicationPrivate::sendMouseEvent (receiver=0x975aeb8, event=0xbf8af97c, alienWidget=0x0, nativeWidget=0x975aeb8, buttonDown=0xb7a7fa40, lastMouseReceiver=@0xb7a7fa44)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#56 0xb741ff9d in QETWidget::translateMouseEvent (this=0x975aeb8, event=0xbf8b0f2c) at kernel/qapplication_x11.cpp:4343
#57 0xb741ede5 in QApplication::x11ProcessEvent (this=0xbf8b348c, event=0xbf8b0f2c) at kernel/qapplication_x11.cpp:3550
#58 0xb7445ce2 in x11EventSourceDispatch (s=0x8e85a80, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#59 0xb597e43f in IA__g_main_context_dispatch (context=0x8e83d90) at gmain.c:1824
#60 0xb5981b8b in g_main_context_iterate (context=0x8e83d90, block=1, dispatch=1, self=0x8e83b80) at gmain.c:2455
#61 0xb5981d19 in IA__g_main_context_iteration (context=0x8e83d90, may_block=1) at gmain.c:2518
#62 0xb6fd0789 in QEventDispatcherGlib::processEvents (this=0x8e84260, flags={i = -1081405208}) at kernel/qeventdispatcher_glib.cpp:327
#63 0xb74454d6 in QGuiEventDispatcherGlib::processEvents (this=0x8e84260, flags={i = -1081405160}) at kernel/qguieventdispatcher_glib.cpp:202
#64 0xb6fa739b in QEventLoop::processEvents (this=0xbf8b118c, flags={i = -1081405096}) at kernel/qeventloop.cpp:149
#65 0xb6fa757a in QEventLoop::exec (this=0xbf8b118c, flags={i = -1081405036}) at kernel/qeventloop.cpp:197
#66 0xb779c0fa in QMenu::exec (this=0x975aeb8, p=@0xbf8b1b3c, action=0x0) at widgets/qmenu.cpp:1993
#67 0xb1fdde4e in KMail::FolderView::contextMenuEvent (this=0x91dc768, e=0xbf8b1b24) at /var/tmp/portage/kde-base/kmail-4.2.96/work/kmail-4.2.96/kmail/folderview.cpp:1560
#68 0xb7409262 in QWidget::event (this=0x91dc768, event=0xbf8b1b24) at kernel/qwidget.cpp:7708
#69 0xb7756654 in QFrame::event (this=0x91dc768, e=0xbf8b1b24) at widgets/qframe.cpp:559
#70 0xb77e99d7 in QAbstractScrollArea::viewportEvent (this=0x91dc768, e=0xaae9) at widgets/qabstractscrollarea.cpp:962
#71 0xb788b9af in QAbstractItemView::viewportEvent (this=0x91dc768, event=0xbf8b1b24) at itemviews/qabstractitemview.cpp:1476
#72 0xb78c53c8 in QTreeView::viewportEvent (this=0x91dc768, event=0xbf8b1b24) at itemviews/qtreeview.cpp:1266
#73 0xb77ebec5 in QAbstractScrollAreaFilter::eventFilter (this=0x94c2f38, o=0x9181540, e=0xbf8b1b24) at widgets/qabstractscrollarea_p.h:100
#74 0xb6fa7e50 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x8e844e8, receiver=0x9181540, event=0xbf8b1b24) at kernel/qcoreapplication.cpp:726
#75 0xb73b50a2 in QApplicationPrivate::notify_helper (this=0x8e844e8, receiver=0x9181540, e=0xbf8b1b24) at kernel/qapplication.cpp:4052
#76 0xb73be0fd in QApplication::notify (this=0xbf8b348c, receiver=0x9181540, e=0xbf8b1b24) at kernel/qapplication.cpp:3845
#77 0xb7c4d59e in KApplication::notify (this=0xbf8b348c, receiver=0x9181540, event=0xbf8b1b24) at /var/tmp/portage/kde-base/kdelibs-4.2.96/work/kdelibs-4.2.96/kdeui/kernel/kapplication.cpp:302
#78 0xb6fa8c52 in QCoreApplication::notifyInternal (this=0xbf8b348c, receiver=0x9181540, event=0xbf8b1b24) at kernel/qcoreapplication.cpp:606
#79 0xb73bf0df in QCoreApplication::sendSpontaneousEvent (receiver=0x9181540, event=0xaae9) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#80 0xb74204f1 in QETWidget::translateMouseEvent (this=0x9157c48, event=0xbf8b30ac) at kernel/qapplication_x11.cpp:4415
#81 0xb741ede5 in QApplication::x11ProcessEvent (this=0xbf8b348c, event=0xbf8b30ac) at kernel/qapplication_x11.cpp:3550
#82 0xb7445ce2 in x11EventSourceDispatch (s=0x8e85a80, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#83 0xb597e43f in IA__g_main_context_dispatch (context=0x8e83d90) at gmain.c:1824
#84 0xb5981b8b in g_main_context_iterate (context=0x8e83d90, block=1, dispatch=1, self=0x8e83b80) at gmain.c:2455
#85 0xb5981d19 in IA__g_main_context_iteration (context=0x8e83d90, may_block=1) at gmain.c:2518
#86 0xb6fd0789 in QEventDispatcherGlib::processEvents (this=0x8e84260, flags={i = -1081396632}) at kernel/qeventdispatcher_glib.cpp:327
#87 0xb74454d6 in QGuiEventDispatcherGlib::processEvents (this=0x8e84260, flags={i = -1081396584}) at kernel/qguieventdispatcher_glib.cpp:202
#88 0xb6fa739b in QEventLoop::processEvents (this=0xbf8b3300, flags={i = -1081396520}) at kernel/qeventloop.cpp:149
#89 0xb6fa757a in QEventLoop::exec (this=0xbf8b3300, flags={i = -1081396472}) at kernel/qeventloop.cpp:197
#90 0xb6fa97f1 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#91 0xb73b4f38 in QApplication::exec () at kernel/qapplication.cpp:3525
#92 0x0804bfd7 in main (argc=3, argv=0xbf8b3684) at /var/tmp/portage/kde-base/kontact-4.2.96/work/kontact-4.2.96/kontact/src/main.cpp:218

Reported using DrKonqi