Application: digikam (5.5.0)

Qt Version: 5.7.1
Frameworks Version: 5.36.0
Operating System: Linux 4.10.0-28-lowlatency x86_64
Distribution: Ubuntu 17.04

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

- Unusual behavior I noticed:
it starts then crash after some seconds while reading database

The crash can be reproduced every time.

-- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7f140b085b80 (LWP 25038))]

Thread 47 (Thread 0x7f12f37f6700 (LWP 25088)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f12f37f6700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 46 (Thread 0x7f12f3ff7700 (LWP 25087)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f12f3ff7700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 45 (Thread 0x7f12f47f8700 (LWP 25086)):
[KCrash Handler]
#6  0x00007f14071c7310 in  () at /usr/lib/digikam/libdigikamdatabase.so.5.5.0
#7  0x00007f14071cc79c in Digikam::HaarIface::bestMatchesForImageWithThreshold(QString const&, double, double, Digikam::HaarIface::DuplicatesSearchRestrictions, Digikam::HaarIface::SketchType) () at /usr/lib/digikam/libdigikamdatabase.so.5.5.0
#8  0x00007f140717fa60 in Digikam::ImageLister::listHaarSearch(Digikam::ImageListerReceiver*, QString const&) () at /usr/lib/digikam/libdigikamdatabase.so.5.5.0
#9  0x00007f1407159650 in Digikam::SearchesJob::run() () at /usr/lib/digikam/libdigikamdatabase.so.5.5.0
#10 0x00007f140750803f in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f14035256da in start_thread (arg=0x7f12f47f8700) at pthread_create.c:456
#13 0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 44 (Thread 0x7f12f4ff9700 (LWP 25085)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f12f4ff9700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 43 (Thread 0x7f12f57fa700 (LWP 25084)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f12f57fa700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 42 (Thread 0x7f12f5ffb700 (LWP 25083)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f12f5ffb700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 41 (Thread 0x7f12f67fc700 (LWP 25082)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f12f67fc700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 40 (Thread 0x7f12f6ffd700 (LWP 25081)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f12f6ffd700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 39 (Thread 0x7f12f77fe700 (LWP 25080)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f12f77fe700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 38 (Thread 0x7f12f7fff700 (LWP 25079)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f12f7fff700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 37 (Thread 0x7f1320ff9700 (LWP 25078)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f1320ff9700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 36 (Thread 0x7f13217fa700 (LWP 25077)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f13217fa700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 35 (Thread 0x7f1321ffb700 (LWP 25076)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f1321ffb700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 34 (Thread 0x7f13227fc700 (LWP 25075)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f13227fc700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 33 (Thread 0x7f1322ffd700 (LWP 25074)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f1322ffd700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 32 (Thread 0x7f13237fe700 (LWP 25073)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f13237fe700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 31 (Thread 0x7f1323fff700 (LWP 25072)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f1323fff700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 30 (Thread 0x7f1340ff9700 (LWP 25071)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f1340ff9700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 29 (Thread 0x7f13417fa700 (LWP 25070)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f13417fa700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 28 (Thread 0x7f1341ffb700 (LWP 25069)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f1341ffb700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 27 (Thread 0x7f13427fc700 (LWP 25068)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f13427fc700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 26 (Thread 0x7f1342ffd700 (LWP 25067)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f1342ffd700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 25 (Thread 0x7f13437fe700 (LWP 25066)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f13437fe700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 24 (Thread 0x7f1343fff700 (LWP 25065)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f1343fff700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 23 (Thread 0x7f134cff9700 (LWP 25064)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f134cff9700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 22 (Thread 0x7f134d7fa700 (LWP 25063)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f134d7fa700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 21 (Thread 0x7f134dffb700 (LWP 25062)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f134dffb700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 20 (Thread 0x7f134e7fc700 (LWP 25061)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f134e7fc700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 19 (Thread 0x7f134effd700 (LWP 25060)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f134effd700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 18 (Thread 0x7f134f7fe700 (LWP 25059)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f134f7fe700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 17 (Thread 0x7f134ffff700 (LWP 25058)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f134ffff700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 16 (Thread 0x7f136c9e1700 (LWP 25057)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f136c9e1700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 15 (Thread 0x7f136d1e2700 (LWP 25056)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f136d1e2700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 14 (Thread 0x7f136d9e3700 (LWP 25055)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f136d9e3700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 13 (Thread 0x7f136e1e4700 (LWP 25054)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f136e1e4700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 12 (Thread 0x7f136ec66700 (LWP 25053)):
#0  0x00007f140352b8b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x00007f140750ca86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f14075082b2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f136ec66700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 11 (Thread 0x7f136f7fe700 (LWP 25052)):
#0  0x00007f140352b510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f13facbb8d3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f13fafe3641 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f14035256da in start_thread (arg=0x7f136f7fe700) at pthread_create.c:456
#4  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 10 (Thread 0x7f136ffff700 (LWP 25051)):
#0  0x00007f140352b510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f13facbb8d3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f13fafe3641 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f14035256da in start_thread (arg=0x7f136ffff700) at pthread_create.c:456
#4  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 9 (Thread 0x7f1374d3f700 (LWP 25050)):
#0  0x00007f140352b510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f13facbb8d3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f13fafe3641 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f14035256da in start_thread (arg=0x7f1374d3f700) at pthread_create.c:456
#4  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 8 (Thread 0x7f1375540700 (LWP 25049)):
#0  0x00007f140352b510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f13facba7b1 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f13fafe3641 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f14035256da in start_thread (arg=0x7f1375540700) at pthread_create.c:456
#4  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 7 (Thread 0x7f13763cd700 (LWP 25048)):
#0  0x00007f1406836d84 in __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007f140681cd82 in poll () at ../sysdeps/unix/syscall-template.S:84
#2  0x00007f13fcf6f576 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f13fcf6f68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f140772ff2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f14076d988a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f1407506fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f14035256da in start_thread (arg=0x7f13763cd700) at pthread_create.c:456
#9  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 6 (Thread 0x7f13b6e36700 (LWP 25047)):
#0  0x00007f140352b510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f13fafb294b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f13fafb2989 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f14035256da in start_thread (arg=0x7f13b6e36700) at pthread_create.c:456
#4  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 5 (Thread 0x7f13c634c700 (LWP 25046)):
#0  0x00007f140352b510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f140750cb4b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f1409ae1862 in  () at /usr/lib/digikam/libdigikamcore.so.5.5.0
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f13c634c700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 4 (Thread 0x7f13c6b4d700 (LWP 25044)):
#0  0x00007f140352b510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f140750cb4b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f140a725afa in Digikam::ScanController::run() () at /usr/lib/digikam/libdigikamgui.so.5.5.0
#3  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14035256da in start_thread (arg=0x7f13c6b4d700) at pthread_create.c:456
#5  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7f13c7df5700 (LWP 25043)):
#0  0x00007f140681cd8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f13fcf6f576 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f13fcf6f68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f140772ff2b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f14076d988a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f1407506fe3 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f14037545c5 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f140750bc98 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f14035256da in start_thread (arg=0x7f13c7df5700) at pthread_create.c:456
#9  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7f13d21f4700 (LWP 25041)):
#0  0x00007f1406829d20 in __libc_recvmsg (fd=3, msg=0x7f13d21f1960, flags=0) at ../sysdeps/unix/sysv/linux/recvmsg.c:28
#1  0x00007f140b1dfb2f in udev_monitor_receive_device () at /lib/x86_64-linux-gnu/libudev.so.1
#2  0x00007f13df98c7bb in  () at /lib/x86_64-linux-gnu/libusb-1.0.so.0
#3  0x00007f14035256da in start_thread (arg=0x7f13d21f4700) at pthread_create.c:456
#4  0x00007f1406828d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7f140b085b80 (LWP 25038)):
#0  0x00007f140352b510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f140750cb4b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f1407507792 in QThreadPoolPrivate::waitForDone(int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f1407507b91 in QThreadPool::waitForDone(int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f1409adfc52 in Digikam::ActionThreadBase::~ActionThreadBase() () at /usr/lib/digikam/libdigikamcore.so.5.5.0
#5  0x00007f1407155bb9 in Digikam::AlbumsDBJobsThread::~AlbumsDBJobsThread() () at /usr/lib/digikam/libdigikamdatabase.so.5.5.0
#6  0x00007f1407705cd1 in QObjectPrivate::deleteChildren() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f140770f05f in QObject::~QObject() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f1407160827 in  () at /usr/lib/digikam/libdigikamdatabase.so.5.5.0
#9  0x00007f140675a270 in __run_exit_handlers (status=1, listp=0x7f1406ae15d8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true) at exit.c:83
#10 0x00007f140675a2ca in __GI_exit (status=<optimized out>) at exit.c:105
#11 0x00007f13d124c683 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#12 0x00007f1407708359 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f14083b335c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f14083bab11 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f14076db8a0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f14076de02d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f140772fb03 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f13fcf6f377 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f13fcf6f5e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f13fcf6f68c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f140772ff0f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f1409b5f9f7 in Digikam::DSplashScreen::setMessage(QString const&) () at /usr/lib/digikam/libdigikamcore.so.5.5.0
#23 0x00007f140a75c30d in Digikam::DigikamApp::preloadWindows() () at /usr/lib/digikam/libdigikamgui.so.5.5.0
#24 0x00007f140a771d23 in Digikam::DigikamApp::DigikamApp() () at /usr/lib/digikam/libdigikamgui.so.5.5.0
#25 0x000056467c389d01 in  ()
#26 0x00007f14067403f1 in __libc_start_main (main=0x56467c388a40, argc=3, argv=0x7ffc6e20e2a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc6e20e298) at ../csu/libc-start.c:291
#27 0x000056467c38a80a in _start ()

Reported using DrKonqi