Application: baloo_file (5.15.0)

Qt Version: 5.5.0
Operating System: Linux 4.1.12-1-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
I just login and a crash report a appears

Maybe similar to Bug 352885, but the bug report assistent doesn't allow me to append to the mentioned  bug report. (button is not working ?!?)

The bug appears often maybe always, but I did  not track this fact explicitly

The crash can be reproduced sometimes.

-- Backtrace:
Application: Baloo File Indexing Daemon (baloo_file), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe876be7780 (LWP 1763))]

Thread 2 (Thread 0x7fe86bf32700 (LWP 1997)):
[KCrash Handler]
#6  0x00007fe872476161 in mdb_txn_begin () at /usr/lib64/liblmdb-0.9.14.so
#7  0x000000000041c0da in Baloo::FirstRunIndexer::run() (this=0x205d3a0) at /usr/src/debug/baloo-5.15.0/src/file/firstrunindexer.cpp:46
#8  0x00007fe8751415b2 in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007fe87514455f in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007fe8737880a4 in start_thread () at /lib64/libpthread.so.0
#11 0x00007fe87475504d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fe876be7780 (LWP 1763)):
#0  0x00007fe874748ced in read () at /lib64/libc.so.6
#1  0x00007fe8711cdb60 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fe87118c999 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fe87118cdf8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fe87118cf7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007fe875375a3c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fe87531ca63 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007fe8753245d6 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00000000004173e2 in main(int, char**) (argc=1, argv=<optimized out>) at /usr/src/debug/baloo-5.15.0/src/file/main.cpp:88

Reported using DrKonqi