[kde] [Bug 368815] New: Crash during login on kubuntu

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368815

            Bug ID: 368815
           Summary: Crash during login on kubuntu
           Product: kde
           Version: unspecified
          Platform: unspecified
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: christophe.cap at gmail.com

Application: baloo_file (5.18.0)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-24-generic x86_64
Distribution: Ubuntu 16.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:

Nothing special. 
Just login with valid credentials and it crashes.
Happens % of the time

- Unusual behavior I noticed:

- Login progress bar very slow right before crash
- Desktop settings (favourits, multi-monitor layout) always disappear after
boot

The crash can be reproduced every time.

-- 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 0x7f542049b8c0 (LWP 3358))]

Thread 2 (Thread 0x7f5415650700 (LWP 3627)):
[KCrash Handler]
#6  mdb_txn_begin (env=0x0, parent=parent at entry=0x0, flags=flags at entry=0,
ret=ret at entry=0x7f541564fb38) at mdb.c:2773
#7  0x00007f541f68499b in Baloo::Transaction::Transaction (this=0x7f541564fb30,
db=..., type=Baloo::Transaction::ReadWrite) at
/build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/engine/transaction.cpp:53
#8  0x000000000041df73 in Baloo::ModifiedFileIndexer::run (this=0x9c3ac0) at
/build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/file/modifiedfileindexer.cpp:49
#9  0x00007f541efa3343 in QThreadPoolThread::run (this=0xa3d7a0) at
thread/qthreadpool.cpp:93
#10 0x00007f541efa684e in QThreadPrivate::start (arg=0xa3d7a0) at
thread/qthread_unix.cpp:331
#11 0x00007f541dc0a6fa in start_thread (arg=0x7f5415650700) at
pthread_create.c:333
#12 0x00007f541e5b3b5d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f542049b8c0 (LWP 3358)):
#0  0x00007f541e574730 in __opendir (name=0xb9e868
"/home/cca/Documents/develop/android/vanilla_4.0.4/external/opencv3/modules/java/common_test/src/org/opencv/test/utils")
at ../sysdeps/posix/opendir.c:200
#1  0x00007f541f11f6a9 in QFileSystemIterator::QFileSystemIterator
(this=0xb9e250, entry=..., filters=..., nameFilters=..., flags=...) at
io/qfilesystemiterator_unix.cpp:58
#2  0x00007f541f09ff92 in QDirIteratorPrivate::pushDirectory
(this=this at entry=0xb90830, fileInfo=...) at io/qdiriterator.cpp:199
#3  0x00007f541f0a10eb in QDirIteratorPrivate::QDirIteratorPrivate
(this=0xb90830, entry=..., nameFilters=..., filters=..., flags=...,
resolveEngine=<optimized out>) at io/qdiriterator.cpp:168
#4  0x00007f541f0a1849 in QDirIterator::QDirIterator (this=0xb9d8a0, path=...,
filters=..., flags=...) at io/qdiriterator.cpp:422
#5  0x0000000000424889 in Baloo::FilteredDirIterator::next (this=0x828730) at
/build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/file/filtereddiriterator.cpp:70
#6  0x0000000000431808 in KInotify::Private::_k_addWatches (this=0x83b080) at
/build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/src/file/kinotify.cpp:163
#7  0x000000000042eff1 in KInotify::qt_static_metacall (_o=<optimized out>,
_c=<optimized out>, _id=<optimized out>, _a=0xb1c370) at
/build/baloo-kf5-wIK3t6/baloo-kf5-5.18.0/obj-x86_64-linux-gnu/src/file/moc_kinotify.cpp:159
#8  0x00007f541f1b6ea1 in QObject::event (this=0x7dafc0, e=<optimized out>) at
kernel/qobject.cpp:1239
#9  0x00007f541f18760c in QCoreApplication::notify (event=0xb0d450,
receiver=0x7dafc0, this=0x7ffe93409340) at kernel/qcoreapplication.cpp:1038
#10 QCoreApplication::notifyInternal (this=0x7ffe93409340, receiver=0x7dafc0,
event=event at entry=0xb0d450) at kernel/qcoreapplication.cpp:965
#11 0x00007f541f189a26 in QCoreApplication::sendEvent (event=0xb0d450,
receiver=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#12 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver at entry=0x0,
event_type=event_type at entry=0, data=0x76fde0) at
kernel/qcoreapplication.cpp:1593
#13 0x00007f541f189f08 in QCoreApplication::sendPostedEvents
(receiver=receiver at entry=0x0, event_type=event_type at entry=0) at
kernel/qcoreapplication.cpp:1451
#14 0x00007f541f1dd673 in postEventSourceDispatch (s=0x771220) at
kernel/qeventdispatcher_glib.cpp:271
#15 0x00007f541b7781a7 in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f541b778400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f541b7784ac in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f541f1dda7f in QEventDispatcherGlib::processEvents (this=0x771610,
flags=...) at kernel/qeventdispatcher_glib.cpp:418
#19 0x00007f541f184dea in QEventLoop::exec (this=this at entry=0x7ffe93409280,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#20 0x00007f541f18ce8c in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1229
#21 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

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