Application that crashed: kontact
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 x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
when in background, kontact crashes suddenly.
Before the crash, I changed the beginning date of Calendar event on a eGroupware server via groupdav. I was warned that my cal would be out of sync if I change it. I ignored the warning and continued, after a few minutes, I assume when kontact read the information on the eGrupware server, kontact crashed.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
The current source language is "auto; currently c".
[KCrash Handler]
#5  0x00007f6d7ccfc308 in KOrg::IncidenceMonthItem::realStartDate (this=0x3a42620) at ../../korganizer/views/monthview/monthitem.cpp:327
#6  0x00007f6d7ccf9efc in KOrg::MonthView::reloadIncidences (this=0x36e3000) at ../../korganizer/views/monthview/monthview.cpp:327
#7  0x00007f6d7ccfb06f in KOrg::MonthView::setStartDate (this=0x36e3000, start=<value optimized out>) at ../../korganizer/views/monthview/monthview.cpp:293
#8  0x00007f6d7ccfb0ce in KOrg::MonthView::showDates (this=0x36e3000, start=..., end=<value optimized out>) at ../../korganizer/views/monthview/monthview.cpp:280
#9  0x00007f6d7cd3d9d6 in KOViewManager::updateView (this=0x36c7f90, start=..., end=...) at ../../korganizer/koviewmanager.cpp:215
#10 0x00007f6d7cd2d3da in CalendarView::updateView (this=0x27e5980, start=..., end=..., updateTodos=false) at ../../korganizer/calendarview.cpp:801
#11 0x00007f6d7cd2eec1 in CalendarView::updateView (this=0x27e5980) at ../../korganizer/calendarview.cpp:810
#12 0x00007f6d7cd3c548 in CalendarView::qt_metacall (this=0x27e5980, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffbe370c60) at ./calendarview.moc:571
#13 0x00007f6d9df65ddc in QMetaObject::activate (sender=0x36e7750, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3113
#14 0x00007f6d9afa298e in KCal::Calendar::qt_metacall (this=0x36e7750, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>) at ./calendar.moc:73
#15 0x00007f6d9b0003c0 in KCal::CalendarResources::qt_metacall (this=0x7fffbe3704f0, _c=59423744, _id=2097266689, _a=0x0) at ./calendarresources.moc:76
#16 0x00007f6d9df65ddc in QMetaObject::activate (sender=0x37ef560, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3113
#17 0x00007f6d9afefbef in KCal::ResourceCalendar::resourceChanged (this=0x7fffbe3704f0, _t1=0x37ef560) at ./resourcecalendar.moc:117
#18 0x00007f6d775b534e in KCal::ResourceGroupwareBase::doLoad (this=0x37ef560, syncCache=<value optimized out>) at ../../../kresources/lib/kcal_resourcegroupwarebase.cpp:275
#19 0x00007f6d9affbb1e in KCal::ResourceCached::load (this=0x37ef560, action=KCal::ResourceCached::SyncCache) at ../../kcal/resourcecached.cpp:409
#20 0x00007f6d9affc046 in KCal::ResourceCached::slotReload (this=0x37ef560) at ../../kcal/resourcecached.cpp:808
#21 0x00007f6d9affc9ee in KCal::ResourceCached::qt_metacall (this=0x37ef560, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>) at ./resourcecached.moc:71
#22 0x00007f6d775b5d50 in KCal::ResourceGroupwareBase::qt_metacall (this=0x7fffbe3704f0, _c=59423744, _id=2097266689, _a=0x0) at ./kcal_resourcegroupwarebase.moc:71
#23 0x00007f6d9df65ddc in QMetaObject::activate (sender=0x37d6000, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3113
#24 0x00007f6d9df5fd83 in QObject::event (this=0x37d6000, e=0x38abc00) at kernel/qobject.cpp:1075
#25 0x00007f6d9e870efc in QApplicationPrivate::notify_helper (this=0x1a625f0, receiver=0x37d6000, e=0x7fffbe3716b0) at kernel/qapplication.cpp:4056
#26 0x00007f6d9e8781ce in QApplication::notify (this=0x7fffbe371a10, receiver=0x37d6000, e=0x7fffbe3716b0) at kernel/qapplication.cpp:4021
#27 0x00007f6d9f4a7ab6 in KApplication::notify (this=0x7fffbe371a10, receiver=0x37d6000, event=0x7fffbe3716b0) at ../../kdeui/kernel/kapplication.cpp:302
#28 0x00007f6d9df50c2c in QCoreApplication::notifyInternal (this=0x7fffbe371a10, receiver=0x37d6000, event=0x7fffbe3716b0) at kernel/qcoreapplication.cpp:610
#29 0x00007f6d9df7b862 in QCoreApplication::sendEvent (this=0x1a5b2c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#30 QTimerInfoList::activateTimers (this=0x1a5b2c0) at kernel/qeventdispatcher_unix.cpp:572
#31 0x00007f6d9df7925d in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#32 0x00007f6d977cabce in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#33 0x00007f6d977ce598 in ?? () from /lib/libglib-2.0.so.0
#34 0x00007f6d977ce6c0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#35 0x00007f6d9df791a6 in QEventDispatcherGlib::processEvents (this=0x1a31cb0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#36 0x00007f6d9e9054be in QGuiEventDispatcherGlib::processEvents (this=0x7fffbe3704f0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#37 0x00007f6d9df4f532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#38 0x00007f6d9df4f904 in QEventLoop::exec (this=0x7fffbe371950, flags=) at kernel/qeventloop.cpp:201
#39 0x00007f6d9df51ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#40 0x0000000000403f47 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../kontact/src/main.cpp:218

This bug may be a duplicate of or related to bug 219718

Reported using DrKonqi