Application that crashed: kontact
Version of the application: 4.3.0 rc1
KDE Version: 4.2.96 (KDE 4.2.96 (KDE 4.3 RC2))
Qt Version: 4.5.2
Operating System: Linux 2.6.28-13-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
For a week I used Kmail as a standalone application.
Then I decided to use it with other Kontact applications jointly.
I launched Kontact  and then noticed that number of unread mails in Summary differs from number on Kmail systrey icon.
Then I desided to restart Kontact and it crashed on exit.

 -- Backtrace:
Application: Kontact (kontact), signal: Aborted
[KCrash Handler]
#5  0x00007f53a26d9fb5 in *__GI_raise (sig=<value optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#6  0x00007f53a26dbbc3 in *__GI_abort () at abort.c:88
#7  0x00007f53a3219da5 in qt_message_output (msgType=QtFatalMsg, buf=<value optimized out>) at global/qglobal.cpp:2042
#8  0x00007f53a3219eeb in qFatal (msg=<value optimized out>) at global/qglobal.cpp:2241
#9  0x00007f5389dd5b87 in Akonadi::Control::start () at /build/buildd/kdepimlibs-4.2.96/akonadi/control.cpp:120
#10 0x00007f538a0cbe8d in ResourcePrivateBase::doOpen (this=0x207cd40) at /build/buildd/kdepim-runtime-4.2.96/kresources/shared/resourceprivatebase.cpp:371
#11 0x00007f53a682bf78 in KRES::Resource::open (this=0x217aa10) at /build/buildd/kdepimlibs-4.2.96/kresources/resource.cpp:122
#12 0x00007f53a6aa2b7c in KABC::StdAddressBook::Private::init (this=0x1f79720, asynchronous=false) at /build/buildd/kdepimlibs-4.2.96/kabc/stdaddressbook.cpp:151
#13 0x00007f53a6aa408b in KABC::StdAddressBook::self (asynchronous=<value optimized out>) at /build/buildd/kdepimlibs-4.2.96/kabc/stdaddressbook.cpp:92
#14 0x00007f53a6aa4136 in KABC::StdAddressBook::self () at /build/buildd/kdepimlibs-4.2.96/kabc/stdaddressbook.cpp:81
#15 0x00007f538843a389 in KOPrefs::instance () at /build/buildd/kdepim-4.2.95a/korganizer/koprefs.cpp:99
#16 0x00007f538882c645 in FreeBusyManager::slotPerhapsUploadFB (this=0x13e5) at /build/buildd/kdepim-4.2.95a/korganizer/freebusymanager.cpp:157
#17 0x00007f538882f3a0 in FreeBusyManager::qt_metacall (this=0x2d51400, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fffb0dbcfb0)
    at /build/buildd/kdepim-4.2.95a/obj-x86_64-linux-gnu/korganizer/freebusymanager.moc:147
#18 0x00007f53a3320ea2 in QMetaObject::activate (sender=0x2e7a2c0, from_signal_index=<value optimized out>, to_signal_index=4, argv=0xffffffffffffffff) at kernel/qobject.cpp:3113
#19 0x00007f53a6d4cbbd in KCal::Calendar::qt_metacall (this=0x2e7a2c0, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=<value optimized out>)
    at /build/buildd/kdepimlibs-4.2.96/obj-x86_64-linux-gnu/kcal/calendar.moc:73
#20 0x00007f53a6da9205 in KCal::CalendarResources::qt_metacall (this=0x13e5, _c=5093, _id=6, _a=0xffffffffffffffff)
    at /build/buildd/kdepimlibs-4.2.96/obj-x86_64-linux-gnu/kcal/calendarresources.moc:76
#21 0x00007f53a3320ea2 in QMetaObject::activate (sender=0x2e2e150, from_signal_index=<value optimized out>, to_signal_index=4, argv=0xffffffffffffffff) at kernel/qobject.cpp:3113
#22 0x00007f53a6d992ff in KCal::ResourceCalendar::resourceChanged (this=0x13e5, _t1=0x2e2e150) at /build/buildd/kdepimlibs-4.2.96/obj-x86_64-linux-gnu/kcal/resourcecalendar.moc:117
#23 0x00007f538970d442 in ResourcePrivateBase::clear (this=0x2e6c0b0) at /build/buildd/kdepim-runtime-4.2.96/kresources/shared/resourceprivatebase.cpp:264
#24 0x00007f53896eed5d in KCal::ResourceAkonadi::doClose (this=0x2e2e150) at /build/buildd/kdepim-runtime-4.2.96/kresources/kcal/resourceakonadi.cpp:425
#25 0x00007f53a682c336 in KRES::Resource::close (this=0x2e2e150) at /build/buildd/kdepimlibs-4.2.96/kresources/resource.cpp:141
#26 0x00007f53a6dac8d9 in KCal::CalendarResources::close (this=0x2e7a2c0) at /build/buildd/kdepimlibs-4.2.96/kcal/calendarresources.cpp:350
#27 0x00007f53a6dacc5d in ~CalendarResources (this=0x13e5) at /build/buildd/kdepimlibs-4.2.96/kcal/calendarresources.cpp:247
#28 0x00007f5392c2feb6 in ~StdCalendar (this=0x13e5) at /build/buildd/kdepim-4.2.95a/korganizer/stdcalendar.cpp:112
#29 0x00007f5392c31557 in K3StaticDeleter<KOrg::StdCalendar>::destructObject (this=0x7f5392e331e0) at /usr/include/k3staticdeleter.h:174
#30 0x00007f53a7fbd70c in K3StaticDeleterPrivate::deleteStaticDeleters () at /build/buildd/kde4libs-4.2.96/kde3support/kdecore/k3staticdeleter.cpp:56
#31 0x00007f53a330bc35 in qt_call_post_routines () at kernel/qcoreapplication.cpp:163
#32 0x00007f53a3e93458 in ~QApplication (this=0x7fffb0dbd4b0) at kernel/qapplication.cpp:971
#33 0x00000000004049d1 in main (argc=1, argv=0x7fffb0dbdb98) at /build/buildd/kdepim-4.2.95a/kontact/src/main.cpp:67

Reported using DrKonqi