Application: baloo_file_extractor (5.56.0)

Qt Version: 5.12.1
Frameworks Version: 5.56.0
Operating System: Linux 4.19.28-1-lts x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
logged in to a session after boot
within the previous session baloo also crashed without visible cause

- Custom settings of the application:
I do not consider this to be relevant but if it is, I don't want to waste anybodys time by not mentioning that I replaced kwin with i3.

-- Backtrace:
Application: Datei-Extraktion für Baloo (baloo_file_extractor), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa6b034a800 (LWP 1127))]

Thread 3 (Thread 0x7fa6a071b700 (LWP 1166)):
#0  0x00007fa6b3c82c21 in poll () at /usr/lib/libc.so.6
#1  0x00007fa6b2bf2690 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fa6b2bf277e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fa6b41b7d04 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fa6b4160b2c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fa6b3fa4569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fa6b5141ba6 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007fa6b3fa596c in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fa6b36e6a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fa6b3c8db23 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fa6af2db700 (LWP 1139)):
#0  0x00007fa6b3c82c21 in poll () at /usr/lib/libc.so.6
#1  0x00007fa6b2b65630 in  () at /usr/lib/libxcb.so.1
#2  0x00007fa6b2b672db in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007fa6afeae949 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fa6b3fa596c in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fa6b36e6a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fa6b3c8db23 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fa6b034a800 (LWP 1127)):
[KCrash Handler]
#6  0x00007fa6b3bc9d7f in raise () at /usr/lib/libc.so.6
#7  0x00007fa6b3bb4672 in abort () at /usr/lib/libc.so.6
#8  0x00007fa6b38a4602 in  () at /usr/lib/liblmdb.so
#9  0x00007fa6b3899465 in  () at /usr/lib/liblmdb.so
#10 0x00007fa6b389a6e6 in  () at /usr/lib/liblmdb.so
#11 0x00007fa6b389a91b in  () at /usr/lib/liblmdb.so
#12 0x00007fa6b389c54c in  () at /usr/lib/liblmdb.so
#13 0x00007fa6b389f64b in mdb_cursor_put () at /usr/lib/liblmdb.so
#14 0x00007fa6b38a244b in mdb_put () at /usr/lib/liblmdb.so
#15 0x00007fa6b51f9a30 in Baloo::PositionDB::put(QByteArray const&, QVector<Baloo::PositionInfo> const&) () at /usr/lib/libKF5BalooEngine.so.5
#16 0x00007fa6b520d690 in Baloo::WriteTransaction::commit() () at /usr/lib/libKF5BalooEngine.so.5
#17 0x00007fa6b5203563 in Baloo::Transaction::commit() () at /usr/lib/libKF5BalooEngine.so.5
#18 0x00005649c1311f4d in  ()
#19 0x00007fa6b4198b57 in  () at /usr/lib/libQt5Core.so.5
#20 0x00007fa6b418d10b in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#21 0x00007fa6b4b29e24 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#22 0x00007fa6b4b316e1 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#23 0x00007fa6b4161e99 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#24 0x00007fa6b41b7095 in QTimerInfoList::activateTimers() () at /usr/lib/libQt5Core.so.5
#25 0x00007fa6b41b795a in  () at /usr/lib/libQt5Core.so.5
#26 0x00007fa6b2bf07bf in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#27 0x00007fa6b2bf2739 in  () at /usr/lib/libglib-2.0.so.0
#28 0x00007fa6b2bf277e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#29 0x00007fa6b41b7ce9 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#30 0x00007fa6b4160b2c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#31 0x00007fa6b4168e36 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#32 0x00005649c130f27f in  ()
#33 0x00007fa6b3bb6223 in __libc_start_main () at /usr/lib/libc.so.6
#34 0x00005649c130f32e in  ()
[Inferior 1 (process 1127) detached]

Reported using DrKonqi