Application: akonadi_baloo_indexer (4.14)
KDE Platform Version: 4.14.38
Qt Version: 4.8.7
Operating System: Linux 4.15.0-43-generic x86_64
Distribution: Ubuntu 18.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:
Simply 
akonadioctl restart
I was looking for problem with dolphin searching, (It doesn't locate files)
This is running on Lenovo Ideapad with Amd E1-6010, disk is Lenovo SSD 480GB

-- Backtrace:
Application:  (akonadi_baloo_indexer), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#6  0x00007f1acf70be97 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007f1acf70d801 in __GI_abort () at abort.c:79
#8  0x00007f1ad329af15 in qt_message_output(QtMsgType, char const*) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f1ad1e15876 in  () at /usr/lib/libakonadi-kde.so.4
#10 0x00007f1ad1e13781 in  () at /usr/lib/libakonadi-kde.so.4
#11 0x00007f1ad1e1351a in  () at /usr/lib/libakonadi-kde.so.4
#12 0x00007f1ad33cfd11 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#13 0x00007f1ad097303c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#14 0x00007f1ad0979f76 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#15 0x00007f1ad16d1caa in KApplication::notify(QObject*, QEvent*) () at /usr/lib/libkdeui.so.5
#16 0x00007f1ad33b58ad in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#17 0x00007f1ad33b9366 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#18 0x00007f1ad33e609e in  () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#19 0x00007f1acedc3387 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f1acedc35c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f1acedc364c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f1ad33e620e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#23 0x00007f1ad0a20666 in  () at /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#24 0x00007f1ad33b412f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#25 0x00007f1ad33b4495 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#26 0x00007f1ad33ba459 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#27 0x00007f1ad1e10844 in Akonadi::AgentBase::init(Akonadi::AgentBase*) () at /usr/lib/libakonadi-kde.so.4
#28 0x00005591b54361f3 in  ()
#29 0x00007f1acf6eeb97 in __libc_start_main (main=0x5591b542f3a0, argc=3, argv=0x7fffd81354c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffd81354b8) at ../csu/libc-start.c:310
#30 0x00005591b542f45a in _start ()

Reported using DrKonqi