Version:            (using KDE 4.2.96)
OS:                Linux
Installed from:    Ubuntu Packages

Exiting Kontact always crashes:
Application: Kontact (kontact), signal: Aborted
[Current thread is 0 (LWP 4206)]

Thread 2 (Thread 0xaacb3b90 (LWP 12115)):
#0  0xb8028430 in __kernel_vsyscall ()
#1  0xb5150412 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb5976344 in pthread_cond_timedwait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb5b6198c in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#4  0xb5b56e76 in ?? () from /usr/lib/libQtCore.so.4
#5  0xb5b6096e in ?? () from /usr/lib/libQtCore.so.4
#6  0xb514c4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb596749e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb4863b30 (LWP 4206)):
[KCrash Handler]
#6  0xb8028430 in __kernel_vsyscall ()
#7  0xb58ae6d0 in raise () from /lib/tls/i686/cmov/libc.so.6
#8  0xb58b0098 in abort () from /lib/tls/i686/cmov/libc.so.6
#9  0xb5b58595 in qt_message_output () from /usr/lib/libQtCore.so.4
#10 0xb5b58681 in qFatal () from /usr/lib/libQtCore.so.4
#11 0xacfa95ec in Akonadi::Control::start () from /usr/lib/libakonadi-kde.so.4
#12 0xacbf334b in ?? () from /usr/lib/kde4/kabc_akonadi.so
#13 0xacbce360 in ?? () from /usr/lib/kde4/kabc_akonadi.so
#14 0xb725cb90 in KRES::Resource::open () from /usr/lib/libkresources.so.4
#15 0xb72cdc14 in KABC::StdAddressBook::Private::init () from /usr/lib/libkabc.so.4
#16 0xb72cf362 in KABC::StdAddressBook::self () from /usr/lib/libkabc.so.4
#17 0xb72cf432 in KABC::StdAddressBook::self () from /usr/lib/libkabc.so.4
#18 0xaccbfa5d in KOPrefs::instance () from /usr/lib/libkorganizer_core.so.4
#19 0xaceaab0f in ?? () from /usr/lib/libkorganizerprivate.so.4
#20 0xaceadc0b in ?? () from /usr/lib/libkorganizerprivate.so.4
#21 0xb5c6aca8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#22 0xb5c6b932 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#23 0xb7360a67 in KCal::Calendar::calendarChanged () from /usr/lib/libkcal.so.4
#24 0xb7360ad5 in KCal::Calendar::qt_metacall () from /usr/lib/libkcal.so.4
#25 0xb73c52fa in KCal::CalendarResources::qt_metacall () from /usr/lib/libkcal.so.4
#26 0xb5c6aca8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#27 0xb5c6b932 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#28 0xb73b3213 in KCal::ResourceCalendar::resourceChanged () from /usr/lib/libkcal.so.4
#29 0xad07bfa8 in ?? () from /usr/lib/kde4/kcal_akonadi.so
#30 0xad0976df in ?? () from /usr/lib/kde4/kcal_akonadi.so
#31 0xad076a05 in ?? () from /usr/lib/kde4/kcal_akonadi.so
#32 0xb725cf97 in KRES::Resource::close () from /usr/lib/libkresources.so.4
#33 0xb73c8dbd in KCal::CalendarResources::close () from /usr/lib/libkcal.so.4
#34 0xb73c9145 in KCal::CalendarResources::~CalendarResources () from /usr/lib/libkcal.so.4
#35 0xb19450c4 in KOrg::StdCalendar::~StdCalendar () from /usr/lib/libkorganizer_calendar.so.4
#36 0xb1946adf in ?? () from /usr/lib/libkorganizer_calendar.so.4
#37 0xb793a87a in ?? () from /usr/lib/libkde3support.so.4
#38 0xb5c54fab in qt_call_post_routines () from /usr/lib/libQtCore.so.4
#39 0xb6140738 in QApplication::~QApplication () from /usr/lib/libQtGui.so.4
#40 0xb6d5d0be in KApplication::~KApplication () from /usr/lib/libkdeui.so.5
#41 0xb6d63eb8 in KUniqueApplication::~KUniqueApplication () from /usr/lib/libkdeui.so.5
#42 0x0804c072 in _start ()