Bug 414927

Application: digikam (6.4.0)

Qt Version: 5.13.2
Frameworks Version: 5.64.0
Operating System: Linux 4.15.0-72-generic x86_64
Distribution: KDE neon User Edition 5.17

-- Information about the crash:
- What I was doing when the application crashed:
I left PC with some long operation, like search for a new picture or reorder into database.
Probably PC stopped or restarted suddenly, maybe damaging database.
Now I can't use DK and don't know where ae located databasa files.
But anyway, IMHO DK should start anyway, in order to allow user to recover from error.

- Custom settings of the application:
pictures on NAS, database on PC using mariaDB

-- Backtrace:
Application: digiKam (digikam), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0d5623b340 (LWP 1673))]

Thread 4 (Thread 0x7f0d0357c700 (LWP 1849)):
#0  0x00007f0d518f89d0 in __GI___nanosleep (requested_time=requested_time@entry=0x7f0d0357b940, remaining=remaining@entry=0x7f0d0357b940) at ../sysdeps/unix/sysv/linux/nanosleep.c:28
#1  0x00007f0d524934fd in qt_nanosleep (amount=...) at kernel/qelapsedtimer_unix.cpp:195
#2  0x00007f0d555a90d9 in Digikam::DatabaseServer::run() () from /usr/lib/x86_64-linux-gnu/libdigikamcore.so.6.4.0
#3  0x00007f0d52250b52 in QThreadPrivate::start (arg=0x5581d8c53840) at thread/qthread_unix.cpp:360
#4  0x00007f0d515fc6db in start_thread (arg=0x7f0d0357c700) at pthread_create.c:463
#5  0x00007f0d5193588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f0d10ed3700 (LWP 1726)):
#0  0x00007f0d516029f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5581d8c41e20) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5581d8c41dd0, cond=0x5581d8c41df8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5581d8c41df8, mutex=0x5581d8c41dd0) at pthread_cond_wait.c:655
#3  0x00007f0d52257aeb in QWaitConditionPrivate::wait (deadline=..., this=0x5581d8c41dd0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x5581d8c20918, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f0d52257df9 in QWaitCondition::wait (this=0x5581d8c20920, mutex=0x5581d8c20918, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f0d5459f2e6 in Digikam::ScanController::run() () from /usr/lib/x86_64-linux-gnu/libdigikamgui.so.6.4.0
#7  0x00007f0d52250b52 in QThreadPrivate::start (arg=0x7f0d54eef400) at thread/qthread_unix.cpp:360
#8  0x00007f0d515fc6db in start_thread (arg=0x7f0d10ed3700) at pthread_create.c:463
#9  0x00007f0d5193588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f0d121c9700 (LWP 1681)):
#0  0x00007f0d519240b4 in __GI___libc_read (fd=8, buf=0x7f0d121c8760, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f0d461702d0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0d4612b0b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0d4612b570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f0d4612b6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f0d52493b9b in QEventDispatcherGlib::processEvents (this=0x7f0d04000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f0d5243406a in QEventLoop::exec (this=this@entry=0x7f0d121c8970, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007f0d5224f3aa in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#8  0x00007f0d48b9a0e5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f0d52250b52 in QThreadPrivate::start (arg=0x7f0d48e11d80) at thread/qthread_unix.cpp:360
#10 0x00007f0d515fc6db in start_thread (arg=0x7f0d121c9700) at pthread_create.c:463
#11 0x00007f0d5193588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f0d5623b340 (LWP 1673)):
[KCrash Handler]
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007f0d51854801 in __GI_abort () at abort.c:79
#8  0x00007f0d5222ccbb in qt_message_fatal (context=..., message=<synthetic pointer>...) at global/qlogging.cpp:1907
#9  QMessageLogger::fatal (this=this@entry=0x7fffb035ae50, msg=msg@entry=0x7f0d525213e8 "QThread: Destroyed while thread is still running") at global/qlogging.cpp:888
#10 0x00007f0d5224e2fd in QThread::~QThread (this=0x5581d8c53840, __in_chrg=<optimized out>) at thread/qthread.cpp:445
#11 0x00007f0d555a9069 in Digikam::DatabaseServer::~DatabaseServer() () from /usr/lib/x86_64-linux-gnu/libdigikamcore.so.6.4.0
#12 0x00007f0d5246447b in QObjectPrivate::deleteChildren (this=this@entry=0x5581d8c47b80) at kernel/qobject.cpp:2019
#13 0x00007f0d5246e113 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1032
#14 0x00007f0d555a76a9 in ?? () from /usr/lib/x86_64-linux-gnu/libdigikamcore.so.6.4.0
#15 0x00007f0d51857041 in __run_exit_handlers (status=0, listp=0x7f0d51bff718 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true) at exit.c:108
#16 0x00007f0d5185713a in __GI_exit (status=<optimized out>) at exit.c:139
#17 0x00007f0d51835b9e in __libc_start_main (main=0x5581d6ccd400 <main>, argc=3, argv=0x7fffb035b0e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffb035b0d8) at ../csu/libc-start.c:344
#18 0x00005581d6cceeba in _start ()

Possible duplicates by query: bug 414922, bug 413943, bug 413708, bug 413508, bug 412300.

Reported using DrKonqi