https://bugs.kde.org/show_bug.cgi?id=387946

--- Comment #5 from Jasper <jasper.macken...@gmail.com> ---
Great that there are debugging symbols in the appimage. I was basing this
assumption off GDB outputting

Reading symbols from digikam-5.8.0-20171212T132305-x86-64.appimage...(no
debugging symbols found)...done.

But I had started the appimage from gdb i.e wrongly.

Running the appimage 'find new files' halts at 21%. Note that this is without
the problematic directory such that digikam 5.6 installed from ubuntu was able
to complete the 'find new images' without a problem.
I can still not see any reference to the image that may be causing the
lockup/halt if this is indeed the fault.


./digikam-5.8.0-20171217T160920-x86-64.appimage debug  --config
~/digikam.config
-- digiKam AppImage Bundle
-- Use 'help' as CLI argument to know all available options
Starting digiKam into GDB...
Use 'bt' command on debugger prompt to get a crash backtrace.
Use 'q' command to quit debugger session.
GNU gdb (Ubuntu 8.0.1-0ubuntu1) 8.0.1
Copyright (C) 2017 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from digikam...done.
Starting program: /tmp/.mount_jCx752/usr/bin/digikam --config
/home/jasper/digikam.config
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffe63ea700 (LWP 25731)]
[New Thread 0x7fffe598b700 (LWP 25732)]
[New Thread 0x7fffdffff700 (LWP 25734)]
[New Thread 0x7fffde44b700 (LWP 25735)]
[Thread 0x7fffde44b700 (LWP 25735) exited]
[New Thread 0x7fffde44b700 (LWP 25736)]
[Thread 0x7fffde44b700 (LWP 25736) exited]
[New Thread 0x7fffde44b700 (LWP 25737)]
[New Thread 0x7fffd2f3f700 (LWP 25738)]
[New Thread 0x7fffd273e700 (LWP 25739)]
[New Thread 0x7fffd1f3d700 (LWP 25740)]
[New Thread 0x7fffd173c700 (LWP 25741)]
[New Thread 0x7fffd0f3b700 (LWP 25742)]
[New Thread 0x7fffb7fff700 (LWP 25743)]
[New Thread 0x7fffb77fe700 (LWP 25744)]
[New Thread 0x7fffb6ffd700 (LWP 25745)]
[New Thread 0x7fffb67fc700 (LWP 25746)]
[New Thread 0x7fffb5ffb700 (LWP 25747)]
[New Thread 0x7fffb57fa700 (LWP 25748)]
[New Thread 0x7fffb4ff9700 (LWP 25749)]
[New Thread 0x7fff97fff700 (LWP 25750)]
[New Thread 0x7fff577fc700 (LWP 25753)]
[New Thread 0x7fff56ffb700 (LWP 25754)]
[New Thread 0x7fff567fa700 (LWP 25755)]
QtAV 1.12.0(Jul 20 2017, 17:39:32)
Multimedia framework base on Qt and FFmpeg.
Distributed under the terms of LGPLv2.1 or later.
Shanghai University->S3 Graphics->Deepin->PPTV, Shanghai, China Copyright (C)
2012-2016 Wang Bin (aka. Lucas Wang) wbse...@gmail.com
Donate: http://qtav.org/donate.html
Source: https://github.com/wang-bin/QtAV
Home page: http://qtav.org
capi::version: 0.6.0
[New Thread 0x7fffd0301700 (LWP 25756)]
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for 4294967295,
skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for 4294967295,
skipping unlock
[Thread 0x7fffd0301700 (LWP 25756) exited]
[New Thread 0x7fff55ff9700 (LWP 25757)]
[Thread 0x7fff55ff9700 (LWP 25757) exited]
[New Thread 0x7fff55ff9700 (LWP 25758)]
[Thread 0x7fff55ff9700 (LWP 25758) exited]
[New Thread 0x7fff55ff9700 (LWP 25759)]
[New Thread 0x7fffd0280700 (LWP 25760)]
[New Thread 0x7fff54fe0700 (LWP 25761)]
[New Thread 0x7fff3bffe700 (LWP 25762)]
[New Thread 0x7fff3b7fd700 (LWP 25763)]
[New Thread 0x7fff3affc700 (LWP 25764)]
[New Thread 0x7fff3a7fb700 (LWP 25765)]
[New Thread 0x7fff39ffa700 (LWP 25766)]
[New Thread 0x7fff397f9700 (LWP 25767)]
QFSFileEngine::open: No file name specified
[New Thread 0x7fff1bfff700 (LWP 25769)]
[New Thread 0x7fff1b7fe700 (LWP 25770)]
[New Thread 0x7fff1affd700 (LWP 25771)]
[New Thread 0x7fff1a7fc700 (LWP 25772)]
[New Thread 0x7fff19ffb700 (LWP 25773)]
[New Thread 0x7fff197fa700 (LWP 25774)]
[New Thread 0x7fff18ff9700 (LWP 25775)]
[New Thread 0x7fff0bfff700 (LWP 25776)]
[New Thread 0x7fff0b7fe700 (LWP 25777)]
[New Thread 0x7fff0affd700 (LWP 25778)]
[New Thread 0x7fff0a7fc700 (LWP 25779)]
[New Thread 0x7fff09ffb700 (LWP 25780)]
[New Thread 0x7fff097fa700 (LWP 25781)]
[New Thread 0x7fff08ff9700 (LWP 25782)]
[New Thread 0x7fff087f8700 (LWP 25783)]
[New Thread 0x7fff07ff7700 (LWP 25784)]
[New Thread 0x7fff077f6700 (LWP 25785)]
[New Thread 0x7fff06ff5700 (LWP 25786)]
[New Thread 0x7fff067f4700 (LWP 25787)]
[New Thread 0x7fff05ff3700 (LWP 25788)]
[New Thread 0x7fff057f2700 (LWP 25789)]
[New Thread 0x7fff04ff1700 (LWP 25790)]
[New Thread 0x7fff047f0700 (LWP 25791)]
[New Thread 0x7fff03fef700 (LWP 25792)]
[New Thread 0x7fff037ee700 (LWP 25793)]
[New Thread 0x7fff02fed700 (LWP 25794)]
[New Thread 0x7fff027ec700 (LWP 25795)]
[New Thread 0x7fff01feb700 (LWP 25796)]
[New Thread 0x7fff017ea700 (LWP 25797)]
[New Thread 0x7fff00fe9700 (LWP 25798)]
[New Thread 0x7fff007e8700 (LWP 25799)]
[New Thread 0x7ffefffe7700 (LWP 25800)]
[New Thread 0x7ffeff7e6700 (LWP 25801)]
QFSFileEngine::open: No file name specified
...
...
Heaps more inotify fails for the directories moved.
...
inotify_add_watch("/media/nuliayuk/Luna/Images/Database-Backups/") failed: "No
such file or directory"
[New Thread 0x7ffefebd7700 (LWP 25802)]
[New Thread 0x7ffefe3d6700 (LWP 25803)]
[New Thread 0x7ffefdbd5700 (LWP 25804)]
[New Thread 0x7ffefd3d4700 (LWP 25805)]
[Thread 0x7ffefdbd5700 (LWP 25804) exited]
[Thread 0x7ffefebd7700 (LWP 25802) exited]
kf5.kservice.sycoca: Parse error in 
"/home/jasper/.config/menus/applications-merged/xdg-desktop-menu-dummy.menu" ,
line  1 , col  1 :  "unexpected end of file"
The desktop entry file "/usr/share/applications/unity-lens-photos.desktop" has
Type= "Application" but no Exec line
kf5.kservice.sycoca: Invalid Service : 
"/usr/share/applications/unity-lens-photos.desktop"
[Thread 0x7ffefd3d4700 (LWP 25805) exited]
[Thread 0x7ffefe3d6700 (LWP 25803) exited]
[New Thread 0x7ffefe3d6700 (LWP 25806)]
QFSFileEngine::open: No file name specified
[New Thread 0x7ffefd3d4700 (LWP 25807)]
[New Thread 0x7ffefdbd5700 (LWP 25808)]
[New Thread 0x7ffefebd7700 (LWP 25809)]
[New Thread 0x7ffefad34700 (LWP 25810)]
[New Thread 0x7ffefa533700 (LWP 25811)]
[New Thread 0x7ffef9d32700 (LWP 25812)]
[New Thread 0x7ffef9531700 (LWP 25813)]
[New Thread 0x7ffef8d30700 (LWP 25814)]
[New Thread 0x7ffef852f700 (LWP 25815)]
[New Thread 0x7ffef7d2e700 (LWP 25816)]
[New Thread 0x7ffef752d700 (LWP 25817)]
[New Thread 0x7ffef6d2c700 (LWP 25818)]
QFSFileEngine::open: No file name specified
[Thread 0x7fff017ea700 (LWP 25797) exited]
[Thread 0x7fff047f0700 (LWP 25791) exited]
[Thread 0x7fff1b7fe700 (LWP 25770) exited]
[Thread 0x7fff077f6700 (LWP 25785) exited]
[Thread 0x7ffeff7e6700 (LWP 25801) exited]
[Thread 0x7fff067f4700 (LWP 25787) exited]
[Thread 0x7fff00fe9700 (LWP 25798) exited]
[Thread 0x7fff007e8700 (LWP 25799) exited]
[Thread 0x7fff07ff7700 (LWP 25784) exited]
[Thread 0x7ffefffe7700 (LWP 25800) exited]
[Thread 0x7fff06ff5700 (LWP 25786) exited]
[Thread 0x7fff097fa700 (LWP 25781) exited]
[Thread 0x7fff19ffb700 (LWP 25773) exited]
[Thread 0x7fff0a7fc700 (LWP 25779) exited]
[Thread 0x7fff0bfff700 (LWP 25776) exited]
[Thread 0x7fff027ec700 (LWP 25795) exited]
[Thread 0x7fff08ff9700 (LWP 25782) exited]
[Thread 0x7fff18ff9700 (LWP 25775) exited]
[Thread 0x7fff1affd700 (LWP 25771) exited]
[Thread 0x7fff02fed700 (LWP 25794) exited]
[Thread 0x7fff04ff1700 (LWP 25790) exited]
[Thread 0x7fff197fa700 (LWP 25774) exited]
[Thread 0x7fff0affd700 (LWP 25778) exited]
[Thread 0x7fff1bfff700 (LWP 25769) exited]
[Thread 0x7fff1a7fc700 (LWP 25772) exited]
[Thread 0x7fff057f2700 (LWP 25789) exited]
[Thread 0x7fff0b7fe700 (LWP 25777) exited]
[Thread 0x7fff087f8700 (LWP 25783) exited]
[Thread 0x7fff03fef700 (LWP 25792) exited]
[Thread 0x7fff037ee700 (LWP 25793) exited]
[Thread 0x7fff09ffb700 (LWP 25780) exited]
[Thread 0x7fff05ff3700 (LWP 25788) exited]
[Thread 0x7fff01feb700 (LWP 25796) exited]
^C
Thread 1 "digikam" received signal SIGINT, Interrupt.
0x00007fffed8b0901 in __GI___poll (fds=0x2f65f90, nfds=8, timeout=18990) at
../sysdeps/unix/sysv/linux/poll.c:29
29      ../sysdeps/unix/sysv/linux/poll.c: No such file or directory.
(gdb) bt
#0  0x00007fffed8b0901 in __GI___poll (fds=0x2f65f90, nfds=8, timeout=18990) at
../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fffeceac169 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fffeceac27c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x000000329eadc9a7 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /tmp/.mount_jCx752/usr/lib/libQt5Core.so.5
#4  0x000000329ea8b35a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/tmp/.mount_jCx752/usr/lib/libQt5Core.so.5
#5  0x00007ffff74f76c6 in Digikam::ScanController::completeCollectionScanCore
(this=0x7ffff7dd2b80
<_ZZN7Digikam12_GLOBAL__N_113Q_QGS_creator13innerFunctionEvE6holder>, 
    needTotalFiles=needTotalFiles@entry=true, defer=defer@entry=false) at
/b/dktemp/digikam-master/core/libs/database/utils/scancontroller.cpp:439
#6  0x00007ffff74f771e in
Digikam::ScanController::completeCollectionScanInBackground (this=<optimized
out>, defer=defer@entry=false)
    at /b/dktemp/digikam-master/core/libs/database/utils/scancontroller.cpp:424
#7  0x00007ffff76b2f77 in Digikam::NewItemsFinder::slotStart (this=0x3950d60)
at /b/dktemp/digikam-master/core/utilities/maintenance/newitemsfinder.cpp:114
#8  0x000000329eab77fa in QObject::event(QEvent*) () from
/tmp/.mount_jCx752/usr/lib/libQt5Core.so.5
#9  0x00007fffef46a8bc in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /tmp/.mount_jCx752/usr/lib/libQt5Widgets.so.5
#10 0x00007fffef471dc0 in QApplication::notify(QObject*, QEvent*) () from
/tmp/.mount_jCx752/usr/lib/libQt5Widgets.so.5
#11 0x000000329ea8d1c0 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /tmp/.mount_jCx752/usr/lib/libQt5Core.so.5
#12 0x000000329ea8f6ab in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /tmp/.mount_jCx752/usr/lib/libQt5Core.so.5
#13 0x000000329eadd473 in ?? () from /tmp/.mount_jCx752/usr/lib/libQt5Core.so.5
#14 0x00007fffeceabfb7 in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007fffeceac1f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007fffeceac27c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x000000329eadc9a7 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /tmp/.mount_jCx752/usr/lib/libQt5Core.so.5
#18 0x000000329ea8b35a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/tmp/.mount_jCx752/usr/lib/libQt5Core.so.5
#19 0x000000329ea93a84 in QCoreApplication::exec() () from
/tmp/.mount_jCx752/usr/lib/libQt5Core.so.5
#20 0x0000000000405a91 in main (argc=3, argv=<optimized out>) at
/b/dktemp/digikam-master/core/app/main/main.cpp:285

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