Bug 382482

Application: digikam (5.6.0)

Qt Version: 5.6.1
Frameworks Version: 5.26.0
Operating System: Linux 4.4.74-18.20-default x86_64
Distribution: "openSUSE Leap 42.2"

-- Information about the crash:
- What I was doing when the application crashed:
When installing OpenSuse 42.2 and updating Digikam to its latest version 5.6 the program can not connect to the existing database in my the user that already came using the application and CAN NOT OPEN THE PROGRAM. He stays for hours "tried to connect to the database" and nothing.
The strange thing is that when creating a new user and log in with this new user, when opening Digikam for the first time the program works perfect.
How can I do not to lose my database and the thousands of tags and saved things I had in digikam? (4 years of information)

The crash can be reproduced every time.

-- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fea46230a00 (LWP 15345))]

Thread 4 (Thread 0x7fe9fffff700 (LWP 15351)):
#0  0x00007fea3e3910bf in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fea41e4265b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#2  0x00007fea4577edd0 in Digikam::ScanController::run() () at /usr/lib64/libdigikamgui.so.5.6.0
#3  0x00007fea41e419e9 in  () at /usr/lib64/libQt5Core.so.5
#4  0x00007fea3e38c744 in start_thread () at /lib64/libpthread.so.0
#5  0x00007fea41538aad in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fea054bb700 (LWP 15350)):
#0  0x00007fea4152c28d in read () at /lib64/libc.so.6
#1  0x00007fea38212670 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fea381d1e49 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fea381d22a8 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fea381d242c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007fea4205433b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fea42001feb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007fea41e3cf1a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007fea3e5b8295 in  () at /usr/lib64/libQt5DBus.so.5
#9  0x00007fea41e419e9 in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007fea3e38c744 in start_thread () at /lib64/libpthread.so.0
#11 0x00007fea41538aad in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fea0d214700 (LWP 15349)):
#0  0x00007fea4153020d in poll () at /lib64/libc.so.6
#1  0x00007fea329783e2 in  () at /usr/lib64/libxcb.so.1
#2  0x00007fea32979fcf in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007fea0e6e8839 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007fea41e419e9 in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007fea3e38c744 in start_thread () at /lib64/libpthread.so.0
#6  0x00007fea41538aad in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fea46230a00 (LWP 15345)):
[KCrash Handler]
#6  0x00007fea44871c90 in Digikam::BdEngineBackend::status() const () at /usr/lib64/libdigikamcore.so.5.6.0
#7  0x00007fea434d5e14 in Digikam::CoreDbAccess::CoreDbAccess() () at /usr/lib64/libdigikamdatabase.so.5.6.0
#8  0x00007fea43474037 in Digikam::CollectionScanner::databaseInitialScanDone() () at /usr/lib64/libdigikamdatabase.so.5.6.0
#9  0x00007fea457cae18 in Digikam::DigikamApp::DigikamApp() () at /usr/lib64/libdigikamgui.so.5.6.0
#10 0x0000000000408938 in main(int, char**) (argc=1, argv=<optimized out>) at /usr/src/debug/digikam-5.6.0/core/app/main/main.cpp:236

Reported using DrKonqi