Application: korgac (4.11.3)
KDE Platform Version: 4.11.3
Qt Version: 4.8.4
Operating System: Linux 3.11.0-13-generic x86_64
Distribution: Ubuntu Trusty Tahr (development branch)

-- Information about the crash:
- What I was doing when the application crashed:

I don't interact with KOrganizer. It is simply running in the background within Kontact while I'm working on my machine. This crash occurs randomly.

-- Backtrace:
Application: KOrganizer herinneringsdaemon (korgac), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#6  KCalCore::Incidence::hasRecurrenceId (this=this@entry=0x0) at ../../kcalcore/incidence.cpp:1035
#7  0x00007fa85b6cb946 in KCalCore::Incidence::instanceIdentifier (this=0x0) at ../../kcalcore/incidence.cpp:301
#8  0x00007fa85c52fdc0 in Akonadi::CalendarBasePrivate::handleUidChange (this=this@entry=0x1d57fb0, oldItem=..., newItem=..., newIdentifier=...) at ../../../akonadi/calendar/calendarbase.cpp:296
#9  0x00007fa85c53b7cc in Akonadi::ETMCalendarPrivate::updateItem (this=this@entry=0x1d57fb0, item=...) at ../../../akonadi/calendar/etmcalendar.cpp:432
#10 0x00007fa85c53bb7a in Akonadi::ETMCalendarPrivate::onDataChangedInFilteredModel (this=0x1d57fb0, topLeft=..., bottomRight=...) at ../../../akonadi/calendar/etmcalendar.cpp:395
#11 0x00007fa85c53d5dd in Akonadi::ETMCalendarPrivate::qt_static_metacall (_o=0x1d57fb0, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0x7fff55eea870) at ./etmcalendar_p.moc:198
#12 0x00007fa85841ea58 in QMetaObject::activate (sender=sender@entry=0x1d8fdd0, m=m@entry=0x7fa85876d6a0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff55eea870) at kernel/qobject.cpp:3539
#13 0x00007fa858468587 in QAbstractItemModel::dataChanged (this=this@entry=0x1d8fdd0, _t1=..., _t2=...) at .moc/release-shared/moc_qabstractitemmodel.cpp:164
#14 0x00007fa8595f1be9 in QSortFilterProxyModelPrivate::_q_sourceDataChanged (this=0x1d99760, source_top_left=..., source_bottom_right=...) at itemviews/qsortfilterproxymodel.cpp:1210
#15 0x00007fa85841ea58 in QMetaObject::activate (sender=sender@entry=0x1d985d0, m=m@entry=0x7fa85876d6a0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff55eeaaf0) at kernel/qobject.cpp:3539
#16 0x00007fa858468587 in QAbstractItemModel::dataChanged (this=this@entry=0x1d985d0, _t1=..., _t2=...) at .moc/release-shared/moc_qabstractitemmodel.cpp:164
#17 0x00007fa8595f1be9 in QSortFilterProxyModelPrivate::_q_sourceDataChanged (this=0x1d985f0, source_top_left=..., source_bottom_right=...) at itemviews/qsortfilterproxymodel.cpp:1210
#18 0x00007fa85841ea58 in QMetaObject::activate (sender=0x1d97d80, m=m@entry=0x7fa85876d6a0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff55eead70) at kernel/qobject.cpp:3539
#19 0x00007fa858468587 in QAbstractItemModel::dataChanged (this=<optimized out>, _t1=..., _t2=...) at .moc/release-shared/moc_qabstractitemmodel.cpp:164
#20 0x00007fa85ab39b3e in KSelectionProxyModelPrivate::emitContinuousRanges (this=this@entry=0x1d97ee0, sourceFirst=..., sourceLast=..., proxyFirst=..., proxyLast=...) at ../../kdeui/itemviews/kselectionproxymodel.cpp:645
#21 0x00007fa85ab3a330 in KSelectionProxyModelPrivate::sourceDataChanged (this=0x1d97ee0, topLeft=..., bottomRight=...) at ../../kdeui/itemviews/kselectionproxymodel.cpp:667
#22 0x00007fa85841ea58 in QMetaObject::activate (sender=sender@entry=0x1d6b850, m=m@entry=0x7fa85876d6a0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff55eeb000) at kernel/qobject.cpp:3539
#23 0x00007fa858468587 in QAbstractItemModel::dataChanged (this=this@entry=0x1d6b850, _t1=..., _t2=...) at .moc/release-shared/moc_qabstractitemmodel.cpp:164
#24 0x00007fa85ba20a63 in Akonadi::EntityTreeModelPrivate::dataChanged (this=this@entry=0x1d72980, top=..., bottom=...) at ../../akonadi/entitytreemodel_p.cpp:1698
#25 0x00007fa85ba294bc in Akonadi::EntityTreeModelPrivate::monitoredItemChanged (this=0x1d72980, item=...) at ../../akonadi/entitytreemodel_p.cpp:1136
#26 0x00007fa85841ea58 in QMetaObject::activate (sender=0x1c09530, m=m@entry=0x7fa85bd7e040 <Akonadi::Monitor::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff55eeb2b0) at kernel/qobject.cpp:3539
#27 0x00007fa85ba5ff77 in Akonadi::Monitor::itemChanged (this=<optimized out>, _t1=..., _t2=...) at ./moc_monitor.cpp:209
#28 0x00007fa85ba66328 in Akonadi::MonitorPrivate::emitItemsNotification (this=this@entry=0x1d95e90, msg=..., items=..., collection=..., collectionDest=...) at ../../akonadi/monitor_p.cpp:713
#29 0x00007fa85ba67f80 in Akonadi::MonitorPrivate::emitNotification (this=this@entry=0x1d95e90, msg=...) at ../../akonadi/monitor_p.cpp:408
#30 0x00007fa85b9c9261 in Akonadi::ChangeRecorderPrivate::emitNotification (this=0x1d95e90, msg=...) at ../../akonadi/changerecorder_p.cpp:55
#31 0x00007fa85ba65181 in Akonadi::MonitorPrivate::flushPipeline (this=this@entry=0x1d95e90) at ../../akonadi/monitor_p.cpp:600
#32 0x00007fa85ba65359 in Akonadi::MonitorPrivate::dataAvailable (this=0x1d95e90) at ../../akonadi/monitor_p.cpp:609
#33 0x00007fa85841ea58 in QMetaObject::activate (sender=sender@entry=0x1d67e90, m=m@entry=0x7fa85bd7bda0 <Akonadi::EntityCacheBase::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#34 0x00007fa85ba0fd70 in Akonadi::EntityCacheBase::dataAvailable (this=this@entry=0x1d67e90) at ./moc_entitycache_p.cpp:102
#35 0x00007fa85b9d1c94 in Akonadi::EntityListCache<Akonadi::Item, Akonadi::ItemFetchJob, Akonadi::ItemFetchScope>::processResult (this=0x1d67e90, job=<optimized out>) at ../../akonadi/entitycache_p.h:451
#36 0x00007fa85841ea58 in QMetaObject::activate (sender=sender@entry=0x47fdf00, m=m@entry=0x7fa858e9e600 <KJob::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7fff55eeb9d0) at kernel/qobject.cpp:3539
#37 0x00007fa858b0e102 in KJob::result (this=this@entry=0x47fdf00, _t1=_t1@entry=0x47fdf00) at ./kjob.moc:208
#38 0x00007fa858b0e140 in KJob::emitResult (this=0x47fdf00) at ../../kdecore/jobs/kjob.cpp:318
#39 0x00007fa858422dce in QObject::event (this=0x47fdf00, e=<optimized out>) at kernel/qobject.cpp:1194
#40 0x00007fa859076dfc in QApplicationPrivate::notify_helper (this=this@entry=0x1b6e070, receiver=receiver@entry=0x47fdf00, e=e@entry=0x47ecff0) at kernel/qapplication.cpp:4567
#41 0x00007fa85907d470 in QApplication::notify (this=this@entry=0x7fff55eec190, receiver=receiver@entry=0x47fdf00, e=e@entry=0x47ecff0) at kernel/qapplication.cpp:4353
#42 0x00007fa85ab53a6a in KApplication::notify (this=0x7fff55eec190, receiver=0x47fdf00, event=0x47ecff0) at ../../kdeui/kernel/kapplication.cpp:311
#43 0x00007fa85840a8bd in QCoreApplication::notifyInternal (this=0x7fff55eec190, receiver=receiver@entry=0x47fdf00, event=event@entry=0x47ecff0) at kernel/qcoreapplication.cpp:946
#44 0x00007fa85840de1f in sendEvent (event=0x47ecff0, receiver=0x47fdf00) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#45 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1b32220) at kernel/qcoreapplication.cpp:1570
#46 0x00007fa85840e2c3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#47 0x00007fa858438073 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#48 postEventSourceDispatch (s=0x1b6e6e0) at kernel/qeventdispatcher_glib.cpp:279
#49 0x00007fa85233c3b6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#50 0x00007fa85233c708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007fa85233c7ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007fa858437a55 in QEventDispatcherGlib::processEvents (this=0x1b33ab0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#53 0x00007fa8591189d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#54 0x00007fa8584095ef in QEventLoop::processEvents (this=this@entry=0x7fff55eec010, flags=...) at kernel/qeventloop.cpp:149
#55 0x00007fa8584098e5 in QEventLoop::exec (this=this@entry=0x7fff55eec010, flags=...) at kernel/qeventloop.cpp:204
#56 0x00007fa85840ee5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#57 0x00007fa85907534c in QApplication::exec () at kernel/qapplication.cpp:3828
#58 0x000000000040edf0 in main (argc=1, argv=0x7fff55eec2d8) at ../../../korganizer/korgac/korgacmain.cpp:96

Reported using DrKonqi