Application that crashed: kontact
Version of the application: 4.3.3
KDE Version: 4.3.3 (KDE 4.3.3)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-15-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
I was in firefox deleting a gmail calendar entries, and soon failed kontact

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
The current source language is "auto; currently c".
[KCrash Handler]
#5  0x00007f02328cb3b8 in KOrg::IncidenceMonthItem::realStartDate (this=0x2d86320) at ../../korganizer/views/monthview/monthitem.cpp:327
#6  0x00007f02328c8fac in KOrg::MonthView::reloadIncidences (this=0x3007060) at ../../korganizer/views/monthview/monthview.cpp:327
#7  0x00007f02328ca11f in KOrg::MonthView::setStartDate (this=0x3007060, start=<value optimized out>) at ../../korganizer/views/monthview/monthview.cpp:293
#8  0x00007f02328ca17e in KOrg::MonthView::showDates (this=0x3007060, start=..., end=<value optimized out>) at ../../korganizer/views/monthview/monthview.cpp:280
#9  0x00007f023290caa6 in KOViewManager::updateView (this=0x1e77dc0, start=..., end=...) at ../../korganizer/koviewmanager.cpp:215
#10 0x00007f02328fc4aa in CalendarView::updateView (this=0x1e79610, start=..., end=..., updateTodos=false) at ../../korganizer/calendarview.cpp:801
#11 0x00007f02328fdf91 in CalendarView::updateView (this=0x1e79610) at ../../korganizer/calendarview.cpp:810
#12 0x00007f023290b618 in CalendarView::qt_metacall (this=0x1e79610, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff01fbe560) at ./calendarview.moc:571
#13 0x00007f0251745ddc in QMetaObject::activate (sender=0x1db18d0, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3113
#14 0x00007f024e78398e in KCal::Calendar::qt_metacall (this=0x1db18d0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>) at ./calendar.moc:73
#15 0x00007f024e7e10e0 in KCal::CalendarResources::qt_metacall (this=0x7fff01fbddf0, _c=72685424, _id=851359489, _a=0x0) at ./calendarresources.moc:76
#16 0x00007f0251745ddc in QMetaObject::activate (sender=0x1e7e150, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3113
#17 0x00007f024e7d090f in KCal::ResourceCalendar::resourceChanged (this=0x7fff01fbddf0, _t1=0x1e7e150) at ./resourcecalendar.moc:117
#18 0x00007f0232e164e6 in KCal::ResourceRemote::doLoad (this=0x1e7e150, syncCache=<value optimized out>) at ../../../kresources/remote/resourceremote.cpp:193
#19 0x00007f024e7dc83e in KCal::ResourceCached::load (this=0x1e7e150, action=KCal::ResourceCached::SyncCache) at ../../kcal/resourcecached.cpp:409
#20 0x00007f024e7dcd66 in KCal::ResourceCached::slotReload (this=0x1e7e150) at ../../kcal/resourcecached.cpp:808
#21 0x00007f024e7dd70e in KCal::ResourceCached::qt_metacall (this=0x1e7e150, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>) at ./resourcecached.moc:71
#22 0x00007f0232e16020 in KCal::ResourceRemote::qt_metacall (this=0x7fff01fbddf0, _c=72685424, _id=851359489, _a=0x0) at ./resourceremote.moc:65
#23 0x00007f0251745ddc in QMetaObject::activate (sender=0x1e80b40, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3113
#24 0x00007f025173fd83 in QObject::event (this=0x1e80b40, e=0x4551770) at kernel/qobject.cpp:1075
#25 0x00007f0252050efc in QApplicationPrivate::notify_helper (this=0xf0bed0, receiver=0x1e80b40, e=0x7fff01fbf080) at kernel/qapplication.cpp:4056
#26 0x00007f02520581ce in QApplication::notify (this=0x7fff01fbf3e0, receiver=0x1e80b40, e=0x7fff01fbf080) at kernel/qapplication.cpp:4021
#27 0x00007f0252c87e56 in KApplication::notify (this=0x7fff01fbf3e0, receiver=0x1e80b40, event=0x7fff01fbf080) at ../../kdeui/kernel/kapplication.cpp:302
#28 0x00007f0251730c2c in QCoreApplication::notifyInternal (this=0x7fff01fbf3e0, receiver=0x1e80b40, event=0x7fff01fbf080) at kernel/qcoreapplication.cpp:610
#29 0x00007f025175b862 in QCoreApplication::sendEvent (this=0xef9be0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#30 QTimerInfoList::activateTimers (this=0xef9be0) at kernel/qeventdispatcher_unix.cpp:572
#31 0x00007f025175925d in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#32 0x00007f024afabbbe in g_main_dispatch (context=0xef8d20) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:1960
#33 IA__g_main_context_dispatch (context=0xef8d20) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2513
#34 0x00007f024afaf588 in g_main_context_iterate (context=0xef8d20, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>)
    at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2591
#35 0x00007f024afaf6b0 in IA__g_main_context_iteration (context=0xef8d20, may_block=1) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2654
#36 0x00007f02517591a6 in QEventDispatcherGlib::processEvents (this=0xececb0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#37 0x00007f02520e54be in QGuiEventDispatcherGlib::processEvents (this=0x7fff01fbddf0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#38 0x00007f025172f532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#39 0x00007f025172f904 in QEventLoop::exec (this=0x7fff01fbf320, flags=) at kernel/qeventloop.cpp:201
#40 0x00007f0251731ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#41 0x0000000000403f47 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../kontact/src/main.cpp:218

Reported using DrKonqi