Application: baloo_file (5.18.0)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-79-generic x86_64
Distribution: Ubuntu 16.04.3 LTS

-- Information about the crash:
I edited a text file (file.txt) in the program Krusader, after saving changes it had a error message. Also noticed this error if I deleted the text file.
Sorry, the text translated by machine translation.

Я редактировал текстовый файл (file.txt) в программе Krusader, после сохранения изменений появилось сообщение об ошибке. Так же замечал такую ошибку если удалял текстовый файл. 
Извините, текст переведён машинным переводом.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Baloo File Indexing Daemon (baloo_file), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f88818e4900 (LWP 3165))]

Thread 2 (Thread 0x7f8735270700 (LWP 3427)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007f887f9f0702 in poll () at ../sysdeps/unix/syscall-template.S:84
#2  0x00007f887cbc038c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f887cbc049c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f88806267eb in QEventDispatcherGlib::processEvents (this=0x7f87300008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f88805cdb4a in QEventLoop::exec (this=this@entry=0x7f873526fb80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x0000000000420cd8 in Baloo::FileContentIndexer::run (this=0x1def560) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/file/filecontentindexer.cpp:71
#7  0x00007f88803ec2d3 in QThreadPoolThread::run (this=0x1f0b7d0) at thread/qthreadpool.cpp:93
#8  0x00007f88803ef7be in QThreadPrivate::start (arg=0x1f0b7d0) at thread/qthread_unix.cpp:331
#9  0x00007f887f0526ba in start_thread (arg=0x7f8735270700) at pthread_create.c:333
#10 0x00007f887f9fc3dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f88818e4900 (LWP 3165)):
[KCrash Handler]
#6  mdb_midl_xmerge (idl=idl@entry=0x20be3a8, merge=merge@entry=0x7f873f2a7010) at midl.c:206
#7  0x00007f887e12576c in mdb_page_alloc (num=num@entry=1, mp=mp@entry=0x7ffd697f1768, mc=0x7ffd697f19a0) at mdb.c:2215
#8  0x00007f887e125ac9 in mdb_page_touch (mc=mc@entry=0x7ffd697f19a0) at mdb.c:2364
#9  0x00007f887e126120 in mdb_page_search (mc=mc@entry=0x7ffd697f19a0, key=0x1db0e20, flags=flags@entry=1) at mdb.c:5429
#10 0x00007f887e1276b6 in mdb_cursor_touch (mc=mc@entry=0x7ffd697f1e80) at mdb.c:6259
#11 0x00007f887e12a805 in mdb_cursor_put (mc=0x7ffd697f1e80, key=0x7ffd697f2270, data=0x7ffd697f2280, flags=<optimized out>) at mdb.c:6401
#12 0x00007f887e12d260 in mdb_put (txn=0x1de23b0, dbi=5, key=key@entry=0x7ffd697f2270, data=data@entry=0x7ffd697f2280, flags=flags@entry=0) at mdb.c:8759
#13 0x00007f8880ababdd in Baloo::DocumentDB::put (this=this@entry=0x7ffd697f2360, docId=docId@entry=22698902223877, list=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/engine/documentdb.cpp:77
#14 0x00007f8880ad5cfe in Baloo::WriteTransaction::replaceDocument (this=0x20b49b0, doc=..., operations=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/engine/writetransaction.cpp:203
#15 0x00007f8880ace019 in Baloo::Transaction::replaceDocument (this=this@entry=0x7ffd697f25d0, doc=..., operations=..., operations@entry=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/engine/transaction.cpp:254
#16 0x0000000000429a25 in Baloo::MetadataMover::updateMetadata (this=this@entry=0x1d88d90, tr=tr@entry=0x7ffd697f25d0, from=..., to=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/file/metadatamover.cpp:116
#17 0x000000000042a023 in Baloo::MetadataMover::moveFileMetadata (this=0x1d88d90, from=..., to=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/file/metadatamover.cpp:56
#18 0x00007f88805febaf in QtPrivate::QSlotObjectBase::call (a=0x7ffd697f2730, r=0x7ffd697f2df0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#19 QMetaObject::activate (sender=sender@entry=0x1de4d40, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=7, argv=argv@entry=0x7ffd697f2730) at kernel/qobject.cpp:3698
#20 0x00007f88805ff537 in QMetaObject::activate (sender=sender@entry=0x1de4d40, m=m@entry=0x644cc0 <KInotify::staticMetaObject>, local_signal_index=local_signal_index@entry=7, argv=argv@entry=0x7ffd697f2730) at kernel/qobject.cpp:3578
#21 0x000000000042aaba in KInotify::moved (this=this@entry=0x1de4d40, _t1=..., _t2=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/obj-x86_64-linux-gnu/src/file/moc_kinotify.cpp:330
#22 0x000000000042cbff in KInotify::slotEvent (this=<optimized out>, socket=<optimized out>) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/file/kinotify.cpp:421
#23 0x00007f88805febaf in QtPrivate::QSlotObjectBase::call (a=0x7ffd697f29c0, r=0x1de4d40, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#24 QMetaObject::activate (sender=sender@entry=0x1ddf210, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd697f29c0) at kernel/qobject.cpp:3698
#25 0x00007f88805ff537 in QMetaObject::activate (sender=sender@entry=0x1ddf210, m=m@entry=0x7f8880819780 <QSocketNotifier::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd697f29c0) at kernel/qobject.cpp:3578
#26 0x00007f888067e24e in QSocketNotifier::activated (this=this@entry=0x1ddf210, _t1=13) at .moc/moc_qsocketnotifier.cpp:134
#27 0x00007f888060b1cb in QSocketNotifier::event (this=0x1ddf210, e=<optimized out>) at kernel/qsocketnotifier.cpp:260
#28 0x00007f88805d036c in QCoreApplication::notify (event=0x7ffd697f2a80, receiver=0x1ddf210, this=0x7ffd697f2d50) at kernel/qcoreapplication.cpp:1038
#29 QCoreApplication::notifyInternal (this=0x7ffd697f2d50, receiver=0x1ddf210, event=event@entry=0x7ffd697f2a80) at kernel/qcoreapplication.cpp:965
#30 0x00007f8880626c95 in QCoreApplication::sendEvent (event=0x7ffd697f2a80, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#31 socketNotifierSourceDispatch (source=0x1d759d0) at kernel/qeventdispatcher_glib.cpp:101
#32 0x00007f887cbc0197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f887cbc03f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f887cbc049c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f88806267cf in QEventDispatcherGlib::processEvents (this=0x1d76d20, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#36 0x00007f88805cdb4a in QEventLoop::exec (this=this@entry=0x7ffd697f2c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#37 0x00007f88805d5bec in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#38 0x000000000041698c in main (argc=1, argv=<optimized out>) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/file/main.cpp:88

Reported using DrKonqi