Application: baloo_file (5.21.0)

Qt Version: 5.5.1
Operating System: Linux 4.1.38-50-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
- Usually: Opening kate, texstudio, chromium, mozilla, dolphin, qtcreator, and in kate creating new file, entering textx and saving (this almost constantly is causing a crash, but this time I did other things)
- This time: Opening mozilla, chromium, texstudio and when navigating from page to page on chromium it happened. 
- Theory (please note I have no idea how all of this works :) ): When texstudio is opened and new files are being created, something is causing a crash.

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 0x7f3c75ab4780 (LWP 1567))]

Thread 2 (Thread 0x7f3b2a9ab700 (LWP 1734)):
#0  0x00007f3c735b0bfd in poll () at /lib64/libc.so.6
#1  0x00007f3c6ffb7e64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f3c6ffb7f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f3c741e9d8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f3c74190d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x000000000041531b in  ()
#6  0x00007f3c73fb4382 in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007f3c73fb732f in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f3c725dc0a4 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f3c735b902d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f3c75ab4780 (LWP 1567)):
[KCrash Handler]
#6  0x00007f3c712bb25c in mdb_get () at /usr/lib64/liblmdb-0.9.14.so
#7  0x00007f3c7488c4cd in Baloo::IdTreeDB::get(unsigned long long) () at /usr/lib64/libKF5BalooEngine.so.5
#8  0x00007f3c74889dc0 in Baloo::DocumentUrlDB::getId(unsigned long long, QByteArray const&) const () at /usr/lib64/libKF5BalooEngine.so.5
#9  0x00007f3c7489b949 in Baloo::Transaction::documentId(QByteArray const&) const () at /usr/lib64/libKF5BalooEngine.so.5
#10 0x000000000041d453 in  ()
#11 0x000000000041de02 in  ()
#12 0x00007f3c741c273f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#13 0x000000000041e75a in  ()
#14 0x00000000004228f9 in  ()
#15 0x00007f3c741c273f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#16 0x00007f3c742448ee in QSocketNotifier::activated(int, QSocketNotifier::QPrivateSignal) () at /usr/lib64/libQt5Core.so.5
#17 0x00007f3c741cfa89 in QSocketNotifier::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#18 0x00007f3c7419318d in QCoreApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#19 0x00007f3c74192e95 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#20 0x00007f3c741eaca5 in  () at /usr/lib64/libQt5Core.so.5
#21 0x00007f3c6ffb7c84 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#22 0x00007f3c6ffb7ed8 in  () at /usr/lib64/libglib-2.0.so.0
#23 0x00007f3c6ffb7f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#24 0x00007f3c741e9d6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#25 0x00007f3c74190d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#26 0x00007f3c741988f6 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#27 0x000000000040a832 in  ()
#28 0x00007f3c734f5b25 in __libc_start_main () at /lib64/libc.so.6
#29 0x000000000040a9a8 in _start ()

Possible duplicates by query: bug 359672, bug 355210, bug 353223.

Reported using DrKonqi