Application: kontact (4.8.3)
KDE Platform Version: 4.8.3 (4.8.3)
Qt Version: 4.8.2
Operating System: Linux 3.4.0-1.fc17.x86_64 x86_64
Distribution (Platform): Fedora RPMs

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

tried to open preferences (akregator module/view was opened)
- akonadi system seems to be unstable anyways: opening preferences in kmail2, creating smtp accounts causes kontact to crash as well

The crash can be reproduced every time.

-- Backtrace:
Application: Kontact (kontact), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f426a087880 (LWP 1869))]

Thread 3 (Thread 0x7f425d73b700 (LWP 1870)):
#0  0x00000038b5e0b595 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f427058477d in ?? () from /lib64/libQtWebKit.so.4
#2  0x00007f4270584889 in ?? () from /lib64/libQtWebKit.so.4
#3  0x00000038b5e07d14 in start_thread () from /lib64/libpthread.so.0
#4  0x00000038b5af199d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f425ce22700 (LWP 1871)):
#0  0x00007f426c3e6310 in ?? () from /lib64/libglib-2.0.so.0
#1  0x00007f426c3e6aa9 in g_private_get () from /lib64/libglib-2.0.so.0
#2  0x00007f426c3cd800 in g_thread_self () from /lib64/libglib-2.0.so.0
#3  0x00007f426c3aaac5 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f426d6ee506 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#5  0x00007f426d6bf13f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#6  0x00007f426d6bf3c8 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#7  0x00007f426d5c2650 in QThread::exec() () from /lib64/libQtCore.so.4
#8  0x00007f426d5c55eb in ?? () from /lib64/libQtCore.so.4
#9  0x00000038b5e07d14 in start_thread () from /lib64/libpthread.so.0
#10 0x00000038b5af199d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f426a087880 (LWP 1869)):
[KCrash Handler]
#5  0x00000038b5a35965 in raise () from /lib64/libc.so.6
#6  0x00000038b5a37118 in abort () from /lib64/libc.so.6
#7  0x00007f426d5bb234 in qt_message_output(QtMsgType, char const*) () from /lib64/libQtCore.so.4
#8  0x00000038db8109c3 in KPIMIdentities::IdentityManager::defaultIdentity() const () from /lib64/libkpimidentities.so.4
#9  0x00007f42149748ed in MailCommon::FolderCollection::slotIdentitiesChanged() () from /lib64/libmailcommon.so.4
#10 0x00007f426d6d6b9f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib64/libQtCore.so.4
#11 0x00000038db813ffa in KPIMIdentities::IdentityManager::slotIdentitiesChanged(QString const&) () from /lib64/libkpimidentities.so.4
#12 0x00000038db8141cb in KPIMIdentities::IdentityManager::qt_metacall(QMetaObject::Call, int, void**) () from /lib64/libkpimidentities.so.4
#13 0x00007f426d2f0e53 in ?? () from /lib64/libQtDBus.so.4
#14 0x00007f426d6d4cee in QObject::event(QEvent*) () from /lib64/libQtCore.so.4
#15 0x00007f426de3837c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#16 0x00007f426de3c7fa in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#17 0x00000038c4a45a56 in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#18 0x00007f426d6c03ee in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#19 0x00007f426d6c3ea1 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQtCore.so.4
#20 0x00007f426d6ee353 in ?? () from /lib64/libQtCore.so.4
#21 0x00007f426c3aa6e5 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#22 0x00007f426c3aaa18 in ?? () from /lib64/libglib-2.0.so.0
#23 0x00007f426c3aaad4 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#24 0x00007f426d6ee4e6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#25 0x00007f426ded82ee in ?? () from /lib64/libQtGui.so.4
#26 0x00007f426d6bf13f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#27 0x00007f426d6bf3c8 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#28 0x00007f426d6c41b8 in QCoreApplication::exec() () from /lib64/libQtCore.so.4
#29 0x0000000000403459 in ?? ()
#30 0x00000038b5a21735 in __libc_start_main () from /lib64/libc.so.6
#31 0x0000000000403991 in _start ()

Reported using DrKonqi