Application that crashed: korganizer
Version of the application: 4.3.2
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-17-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
I have a directory stored calendar in KOrganizer. When i select "Reload" from calendar menu popup KOrganizer crashes.

 -- Backtrace:
Application: KOrganizer (korganizer), signal: Segmentation fault
[KCrash Handler]
#6  0x00b65c8a in KCal::Incidence::summaryIsRich (this=0xbfc7e150) at ../../kcal/incidence.cpp:438
#7  0x016decc8 in QSortFilterProxyModel::data (this=0x9d58af8, index=..., role=34) at itemviews/qsortfilterproxymodel.cpp:1611
#8  0x003c0fbb in QModelIndex::data (this=0x9d27e38, painter=0xbfc7e62c, option=..., index=...) at /usr/include/qt4/QtCore/qabstractitemmodel.h:378
#9  KOTodoRichTextDelegate::paint (this=0x9d27e38, painter=0xbfc7e62c, option=..., index=...) at ../../korganizer/views/todoview/kotododelegates.cpp:413
#10 0x01692500 in QTreeView::drawRow (this=0x9d46de0, painter=0xbfc7e62c, option=..., index=...) at itemviews/qtreeview.cpp:1640
#11 0x0169a2cc in QTreeView::drawTree (this=0x9d46de0, painter=0xbfc7e62c, region=...) at itemviews/qtreeview.cpp:1403
#12 0x0169ad4d in QTreeView::paintEvent (this=0x9d46de0, event=0xbfc7ee34) at itemviews/qtreeview.cpp:1281
#13 0x0115bdd4 in QWidget::event (this=0x9d46de0, event=0xbfc7ee34) at kernel/qwidget.cpp:7687
#14 0x0150b633 in QFrame::event (this=0x9d46de0, e=0xbfc7ee34) at widgets/qframe.cpp:559
#15 0x015aa494 in QAbstractScrollArea::viewportEvent (this=0x22, e=0x0) at widgets/qabstractscrollarea.cpp:962
#16 0x0165e087 in QAbstractItemView::viewportEvent (this=0x9d46de0, event=0xbfc7ee34) at itemviews/qabstractitemview.cpp:1476
#17 0x01699434 in QTreeView::viewportEvent (this=0x9d46de0, event=0xbfc7ee34) at itemviews/qtreeview.cpp:1266
#18 0x015aca95 in QAbstractScrollAreaPrivate::viewportEvent (this=0x9d52bf8, o=0x9d4e9d8, e=0xbfc7ee34) at widgets/qabstractscrollarea_p.h:100
#19 QAbstractScrollAreaFilter::eventFilter (this=0x9d52bf8, o=0x9d4e9d8, e=0xbfc7ee34) at widgets/qabstractscrollarea_p.h:111
#20 0x00a2a83a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x9baf4b0, receiver=0x9d4e9d8, event=0xbfc7ee34) at kernel/qcoreapplication.cpp:726
#21 0x01106f2c in QApplicationPrivate::notify_helper (this=0x9baf4b0, receiver=0x9d4e9d8, e=0xbfc7ee34) at kernel/qapplication.cpp:4052
#22 0x0110e5ca in QApplication::notify (this=0xbfc7fa34, receiver=0x9d4e9d8, e=0xbfc7ee34) at kernel/qapplication.cpp:4021
#23 0x0072cbfa in KApplication::notify (this=0xbfc7fa34, receiver=0x9d4e9d8, event=0xbfc7ee34) at ../../kdeui/kernel/kapplication.cpp:302
#24 0x00a2b6cb in QCoreApplication::notifyInternal (this=0xbfc7fa34, receiver=0x9d4e9d8, event=0xbfc7ee34) at kernel/qcoreapplication.cpp:610
#25 0x01163e25 in QCoreApplication::sendSpontaneousEvent (this=0x9d2e700, pdev=0x9c4468c, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x9c88478)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#26 QWidgetPrivate::drawWidget (this=0x9d2e700, pdev=0x9c4468c, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x9c88478) at kernel/qwidget.cpp:5079
#27 0x012f2233 in QWidgetBackingStore::sync (this=0x9c88478) at painting/qbackingstore.cpp:1261
#28 0x01155116 in QWidgetPrivate::syncBackingStore (this=0x9c8b698) at kernel/qwidget.cpp:1603
#29 0x0115c215 in QWidget::event (this=0x9c671c0, event=0x9fb6588) at kernel/qwidget.cpp:7827
#30 0x01529297 in QMainWindow::event (this=0x9c671c0, event=0x9fb6588) at widgets/qmainwindow.cpp:1399
#31 0x00812dc4 in KMainWindow::event (this=0x9c671c0, ev=0x9fb6588) at ../../kdeui/widgets/kmainwindow.cpp:1094
#32 0x0085930f in KXmlGuiWindow::event (this=0x9c671c0, ev=0x9fb6588) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:131
#33 0x01106f54 in QApplicationPrivate::notify_helper (this=0x9baf4b0, receiver=0x9c671c0, e=0x9fb6588) at kernel/qapplication.cpp:4056
#34 0x0110e5ca in QApplication::notify (this=0xbfc7fa34, receiver=0x9c671c0, e=0x9fb6588) at kernel/qapplication.cpp:4021
#35 0x0072cbfa in KApplication::notify (this=0xbfc7fa34, receiver=0x9c671c0, event=0x9fb6588) at ../../kdeui/kernel/kapplication.cpp:302
#36 0x00a2b6cb in QCoreApplication::notifyInternal (this=0xbfc7fa34, receiver=0x9c671c0, event=0x9fb6588) at kernel/qcoreapplication.cpp:610
#37 0x00a2c2b2 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x9b85820) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#38 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9b85820) at kernel/qcoreapplication.cpp:1247
#39 0x00a2c47d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1140
#40 0x00a563ff in QCoreApplication::sendPostedEvents (s=0x9babd10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#41 postEventSourceDispatch (s=0x9babd10) at kernel/qeventdispatcher_glib.cpp:210
#42 0x02c2ee88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#43 0x02c32730 in ?? () from /lib/libglib-2.0.so.0
#44 0x02c32863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#45 0x00a5602c in QEventDispatcherGlib::processEvents (this=0x9ba3290, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#46 0x011a7be5 in QGuiEventDispatcherGlib::processEvents (this=0x9ba3290, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#47 0x00a29c79 in QEventLoop::processEvents (this=0xbfc7f9c4, flags=) at kernel/qeventloop.cpp:149
#48 0x00a2a0ca in QEventLoop::exec (this=0xbfc7f9c4, flags=...) at kernel/qeventloop.cpp:201
#49 0x00a2c53f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#50 0x01106dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#51 0x0804ec04 in main (argc=1, argv=0xbfc7fb94) at ../../korganizer/main.cpp:61

Reported using DrKonqi