Application: akonadi_baloo_indexer (4.14)
KDE Platform Version: 4.14.16
Qt Version: 4.8.6
Operating System: Linux 4.1.15-8-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

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

After having restarted Akonadi several times either by typing "akonadictl restart" or by clicking  "Restart Server" in akonadiconsole I got this backtrace every time. Maybe it is useful for you, at least drkonqui says that.

I'm using openSUSE Leap 42.1 with the akonadi5 package. According to "aconadictl --version" it is v5.1.51 to be exact.

The crash can be reproduced every time.

-- Backtrace:
Application:  (akonadi_baloo_indexer), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[KCrash Handler]
#6  0x00007f87c0681187 in raise () at /lib64/libc.so.6
#7  0x00007f87c0682538 in abort () at /lib64/libc.so.6
#8  0x00007f87c43ab6d4 in qt_message_output(QtMsgType, char const*) () at /usr/lib64/libQtCore.so.4
#9  0x00007f87c2d050ee in  () at /usr/lib64/libakonadi-kde.so.4
#10 0x00007f87c2d03e72 in  () at /usr/lib64/libakonadi-kde.so.4
#11 0x00007f87c44cf49e in QObject::event(QEvent*) () at /usr/lib64/libQtCore.so.4
#12 0x00007f87c18ab79c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#13 0x00007f87c18b1cdd in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#14 0x00007f87c25c2e1a in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#15 0x00007f87c44b718d in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQtCore.so.4
#16 0x00007f87c44ba45d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQtCore.so.4
#17 0x00007f87c44e47fe in  () at /usr/lib64/libQtCore.so.4
#18 0x00007f87bff6ec84 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#19 0x00007f87bff6eed8 in  () at /usr/lib64/libglib-2.0.so.0
#20 0x00007f87bff6ef7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#21 0x00007f87c44e3fbe in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#22 0x00007f87c19486a6 in  () at /usr/lib64/libQtGui.so.4
#23 0x00007f87c44b5d4f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#24 0x00007f87c44b6045 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#25 0x00007f87c44bb499 in QCoreApplication::exec() () at /usr/lib64/libQtCore.so.4
#26 0x00007f87c2d016f3 in Akonadi::AgentBase::init(Akonadi::AgentBase*) () at /usr/lib64/libakonadi-kde.so.4
#27 0x0000000000410993 in _start ()

Reported using DrKonqi