Application: baloo_file (5.18.0)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-57-generic x86_64
Distribution: Ubuntu 16.04.1 LTS

-- Information about the crash:
Plasmashell randomly crashes when using it, ie. doing a search in the main menu or switching apps.

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 0x7f41c7ab18c0 (LWP 1917))]

Thread 2 (Thread 0x7f407cdd4700 (LWP 2209)):
#0  0x00007f41c2dd6ae4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f41c2d919b0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f41c2d922cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f41c2d924ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f41c67f67eb in QEventDispatcherGlib::processEvents (this=0x7f40780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f41c679db4a in QEventLoop::exec (this=this@entry=0x7f407cdd3bc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x0000000000420cd8 in Baloo::FileContentIndexer::run (this=0xdc5d00) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/file/filecontentindexer.cpp:71
#7  0x00007f41c65bc2d3 in QThreadPoolThread::run (this=0x10241b0) at thread/qthreadpool.cpp:93
#8  0x00007f41c65bf7be in QThreadPrivate::start (arg=0x10241b0) at thread/qthread_unix.cpp:331
#9  0x00007f41c52236ba in start_thread (arg=0x7f407cdd4700) at pthread_create.c:333
#10 0x00007f41c5bcc82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f41c7ab18c0 (LWP 1917)):
[KCrash Handler]
#6  Baloo::IdFilenameDB::get (this=this@entry=0x7ffcac268130, docId=docId@entry=12978991736555522) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/engine/idfilenamedb.cpp:96
#7  0x00007f41c6ca5984 in Baloo::DocumentUrlDB::replace<Baloo::WriteTransaction::replaceDocument(const Baloo::Document&, Baloo::DocumentOperations)::<lambda(quint64)> > (shouldDeleteFolder=..., url=..., docId=12978991736555522, this=0x7ffcac268120) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/engine/documenturldb.h:92
#8  Baloo::WriteTransaction::replaceDocument (this=<optimized out>, doc=..., operations=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/engine/writetransaction.cpp:231
#9  0x00007f41c6c9e019 in Baloo::Transaction::replaceDocument (this=this@entry=0x7ffcac268350, doc=..., operations=..., operations@entry=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/engine/transaction.cpp:254
#10 0x0000000000429a25 in Baloo::MetadataMover::updateMetadata (this=this@entry=0xe04830, tr=tr@entry=0x7ffcac268350, from=..., to=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/file/metadatamover.cpp:116
#11 0x000000000042a023 in Baloo::MetadataMover::moveFileMetadata (this=0xe04830, from=..., to=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/file/metadatamover.cpp:56
#12 0x00007f41c67cebaf in QtPrivate::QSlotObjectBase::call (a=0x7ffcac2684b0, r=0x7ffcac268b70, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#13 QMetaObject::activate (sender=sender@entry=0xe00790, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=7, argv=argv@entry=0x7ffcac2684b0) at kernel/qobject.cpp:3698
#14 0x00007f41c67cf537 in QMetaObject::activate (sender=sender@entry=0xe00790, m=m@entry=0x644cc0 <KInotify::staticMetaObject>, local_signal_index=local_signal_index@entry=7, argv=argv@entry=0x7ffcac2684b0) at kernel/qobject.cpp:3578
#15 0x000000000042aaba in KInotify::moved (this=this@entry=0xe00790, _t1=..., _t2=...) at /build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/obj-x86_64-linux-gnu/src/file/moc_kinotify.cpp:330
#16 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
#17 0x00007f41c67cebaf in QtPrivate::QSlotObjectBase::call (a=0x7ffcac268740, r=0xe00790, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#18 QMetaObject::activate (sender=sender@entry=0xe2f000, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffcac268740) at kernel/qobject.cpp:3698
#19 0x00007f41c67cf537 in QMetaObject::activate (sender=sender@entry=0xe2f000, m=m@entry=0x7f41c69e9780 <QSocketNotifier::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffcac268740) at kernel/qobject.cpp:3578
#20 0x00007f41c684e24e in QSocketNotifier::activated (this=this@entry=0xe2f000, _t1=13) at .moc/moc_qsocketnotifier.cpp:134
#21 0x00007f41c67db1cb in QSocketNotifier::event (this=0xe2f000, e=<optimized out>) at kernel/qsocketnotifier.cpp:260
#22 0x00007f41c67a036c in QCoreApplication::notify (event=0x7ffcac268800, receiver=0xe2f000, this=0x7ffcac268ad0) at kernel/qcoreapplication.cpp:1038
#23 QCoreApplication::notifyInternal (this=0x7ffcac268ad0, receiver=0xe2f000, event=event@entry=0x7ffcac268800) at kernel/qcoreapplication.cpp:965
#24 0x00007f41c67f6c95 in QCoreApplication::sendEvent (event=0x7ffcac268800, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#25 socketNotifierSourceDispatch (source=0xd65ec0) at kernel/qeventdispatcher_glib.cpp:101
#26 0x00007f41c2d921a7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f41c2d92400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f41c2d924ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f41c67f67cf in QEventDispatcherGlib::processEvents (this=0xd67e40, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#30 0x00007f41c679db4a in QEventLoop::exec (this=this@entry=0x7ffcac268a10, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#31 0x00007f41c67a5bec in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#32 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