Bug 401164

Summary: Crash on close from preview mode
Product: [Applications] digikam Reporter: Nathan DeGruchy <nathan>
Component: Thumbs-EngineAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: crash CC: caulier.gilles, metzpinguin
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.9.0   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In: 6.3.0
Sentry Crash Report:

Description Nathan DeGruchy 2018-11-18 13:24:38 UTC 
Application: digikam (5.9.0)

Qt Version: 5.11.2
Frameworks Version: 5.52.0
Operating System: Linux 4.19.2-arch1-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

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

Closing digiKam after viewing an album in preview mode. I had previously generated thumbnails for ~500gb of photos.

-- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f14186c8b00 (LWP 5380))]

Thread 58 (Thread 0x7f140ffff700 (LWP 23306)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 57 (Thread 0x7f132effd700 (LWP 22623)):
[KCrash Handler]
#6  0x00007f1433a79b37 in QMutex::lock() () at /usr/lib/libQt5Core.so.5
#7  0x00007f14351d7cb4 in  () at /usr/lib/libdigikamcore.so.5.9.0
#8  0x00007f14351af149 in Digikam::LoadSaveThread::run() () at /usr/lib/libdigikamcore.so.5.9.0
#9  0x00007f14351eec20 in Digikam::DynamicThread::DynamicThreadPriv::run() () at /usr/lib/libdigikamcore.so.5.9.0
#10 0x00007f1433a7ee11 in  () at /usr/lib/libQt5Core.so.5
#11 0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#12 0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#13 0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 56 (Thread 0x7f1326ffd700 (LWP 7940)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f142540e5ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 55 (Thread 0x7f13267fc700 (LWP 7939)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f142540e5ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 54 (Thread 0x7f1325ffb700 (LWP 7938)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f142540e5ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 53 (Thread 0x7f1324ff9700 (LWP 7937)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f142540e5ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 52 (Thread 0x7f13247f8700 (LWP 7936)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f142540e5ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 51 (Thread 0x7f13377fe700 (LWP 7550)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 50 (Thread 0x7f1337fff700 (LWP 7549)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 49 (Thread 0x7f133cd84700 (LWP 7548)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 48 (Thread 0x7f1335ffb700 (LWP 7547)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 47 (Thread 0x7f133ffff700 (LWP 6219)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f142540e5ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 46 (Thread 0x7f13257fa700 (LWP 6218)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f142540e5ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 45 (Thread 0x7f133effd700 (LWP 6217)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f142540e5ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 44 (Thread 0x7f133dd86700 (LWP 6216)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f142540e5ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 43 (Thread 0x7f133d585700 (LWP 6215)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f142540e5ef in  () at /usr/lib/libavcodec.so.58
#2  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 42 (Thread 0x7f137cffe700 (LWP 5577)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a8771c in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f14351db835 in Digikam::VideoThumbnailerJob::run() () at /usr/lib/libdigikamcore.so.5.9.0
#3  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 41 (Thread 0x7f1318fe1700 (LWP 5473)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 40 (Thread 0x7f13197e2700 (LWP 5472)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 39 (Thread 0x7f1319fe3700 (LWP 5471)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 38 (Thread 0x7f131a7e4700 (LWP 5470)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 37 (Thread 0x7f131afe5700 (LWP 5469)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 36 (Thread 0x7f131b7e6700 (LWP 5468)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 35 (Thread 0x7f131bfe7700 (LWP 5467)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 34 (Thread 0x7f131c7e8700 (LWP 5466)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 33 (Thread 0x7f131cfe9700 (LWP 5465)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 32 (Thread 0x7f131d7ea700 (LWP 5464)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 31 (Thread 0x7f131f7ee700 (LWP 5463)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 30 (Thread 0x7f131ffef700 (LWP 5462)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 29 (Thread 0x7f131efed700 (LWP 5461)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 28 (Thread 0x7f131dfeb700 (LWP 5460)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f14336e7cd1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
#2  0x00007f14336e7cd1 in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#3  0x00007f1429c0a7cf in WTF::ParkingLot::parkConditionally(void const*, std::function<bool ()>, std::function<void ()>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >) () at /usr/lib/libQt5WebKit.so.5
#4  0x00007f1429c089f6 in  () at /usr/lib/libQt5WebKit.so.5
#5  0x00007f1429c0cfcd in  () at /usr/lib/libQt5WebKit.so.5
#6  0x00007f1429c3b3ca in  () at /usr/lib/libQt5WebKit.so.5
#7  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 27 (Thread 0x7f131e7ec700 (LWP 5459)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f14336e7cd1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
#2  0x00007f14336e7cd1 in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#3  0x00007f1429c0a7cf in WTF::ParkingLot::parkConditionally(void const*, std::function<bool ()>, std::function<void ()>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >) () at /usr/lib/libQt5WebKit.so.5
#4  0x00007f1429c089f6 in  () at /usr/lib/libQt5WebKit.so.5
#5  0x00007f1429c0cfcd in  () at /usr/lib/libQt5WebKit.so.5
#6  0x00007f1429c3b3ca in  () at /usr/lib/libQt5WebKit.so.5
#7  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 26 (Thread 0x7f13207f0700 (LWP 5458)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f14336e7cd1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
#2  0x00007f14336e7cd1 in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#3  0x00007f1429c0a7cf in WTF::ParkingLot::parkConditionally(void const*, std::function<bool ()>, std::function<void ()>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >) () at /usr/lib/libQt5WebKit.so.5
#4  0x00007f1429c089f6 in  () at /usr/lib/libQt5WebKit.so.5
#5  0x00007f1429c0cfcd in  () at /usr/lib/libQt5WebKit.so.5
#6  0x00007f1429c3b3ca in  () at /usr/lib/libQt5WebKit.so.5
#7  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 25 (Thread 0x7f137efff700 (LWP 5414)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f14336e7cd1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
#2  0x00007f14336e7cd1 in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#3  0x00007f1429c0a7cf in WTF::ParkingLot::parkConditionally(void const*, std::function<bool ()>, std::function<void ()>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >) () at /usr/lib/libQt5WebKit.so.5
#4  0x00007f14295d7df9 in  () at /usr/lib/libQt5WebKit.so.5
#5  0x00007f1429c0cfcd in  () at /usr/lib/libQt5WebKit.so.5
#6  0x00007f1429c3b3ca in  () at /usr/lib/libQt5WebKit.so.5
#7  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 24 (Thread 0x7f137fffd700 (LWP 5413)):
#0  0x00007f142bc73414 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f142bcc38e1 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f142bcc4e86 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f142bcc4fce in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f1433c87fe4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f1433c338cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f1433a7ceb9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 23 (Thread 0x7f13c4dd2700 (LWP 5412)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 22 (Thread 0x7f13c55d3700 (LWP 5411)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 21 (Thread 0x7f13c6ffd700 (LWP 5403)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 20 (Thread 0x7f13c77fe700 (LWP 5402)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7f13c7fff700 (LWP 5401)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7f13dd7fa700 (LWP 5400)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f13ddffb700 (LWP 5399)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f13de7fc700 (LWP 5398)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f13deffd700 (LWP 5397)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f13df7fe700 (LWP 5396)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f13dffff700 (LWP 5395)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f1400ff9700 (LWP 5394)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f14017fa700 (LWP 5393)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f1401ffb700 (LWP 5392)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f14027fc700 (LWP 5391)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f1402ffd700 (LWP 5390)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f14037fe700 (LWP 5389)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a879ac in QWaitCondition::wait(QReadWriteLock*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f142cfcbe11 in QtAV::BlockingQueue<QRunnable*, QQueue>::take() () at /usr/lib/libQtAV.so.1
#3  0x00007f142d0449f9 in QtAV::ExtractThread::run() () at /usr/lib/libQtAV.so.1
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f1403fff700 (LWP 5388)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1433a8771c in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f14351ed78b in  () at /usr/lib/libdigikamcore.so.5.9.0
#3  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f140f7fe700 (LWP 5387)):
#0  0x00007f142f35ae5b in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f140e3e2fe4 in  () at /usr/lib/libGLX_nvidia.so.0
#2  0x00007f140d03cee4 in  () at /usr/lib/libnvidia-glcore.so.410.73
#3  0x00007f140e3e214c in  () at /usr/lib/libGLX_nvidia.so.0
#4  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f141566f700 (LWP 5383)):
#0  0x00007f1433542c21 in poll () at /usr/lib/libc.so.6
#1  0x00007f142bcc4ee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f142bcc4fce in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f1433c87fe4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f1433c338cc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f1433a7ceb9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f142f384ba6 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f141692a700 (LWP 5382)):
#0  0x00007f1433542c21 in poll () at /usr/lib/libc.so.6
#1  0x00007f1427c5e630 in  () at /usr/lib/libxcb.so.1
#2  0x00007f1427c602db in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f14177e2c5a in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f1433a86f65 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f14186bd700 (LWP 5381)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f14336e7cd1 in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
#2  0x00007f14336e7cd1 in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#3  0x00007f142b15af14 in  () at /usr/lib/libQt5WebKit.so.5
#4  0x00007f142b15b039 in  () at /usr/lib/libQt5WebKit.so.5
#5  0x00007f14336ee063 in std::execute_native_thread_routine(void*) (__p=0x556a594abb90) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007f142f354a9d in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f143354db23 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f14186c8b00 (LWP 5380)):
#0  0x00007f142f35aafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1427c5e83b in  () at /usr/lib/libxcb.so.1
#2  0x00007f1427c5ffef in  () at /usr/lib/libxcb.so.1
#3  0x00007f1427c60209 in xcb_request_check () at /usr/lib/libxcb.so.1
#4  0x00007f141780289c in  () at /usr/lib/libQt5XcbQpa.so.5
#5  0x00007f1417802f58 in  () at /usr/lib/libQt5XcbQpa.so.5
#6  0x00007f1417804cb9 in  () at /usr/lib/libQt5XcbQpa.so.5
#7  0x00007f1417804d79 in  () at /usr/lib/libQt5XcbQpa.so.5
#8  0x00007f143416a07b in QBackingStore::~QBackingStore() () at /usr/lib/libQt5Gui.so.5
#9  0x00007f14345d2789 in  () at /usr/lib/libQt5Widgets.so.5
#10 0x00007f14345db332 in QWidgetPrivate::deleteTLSysExtra() () at /usr/lib/libQt5Widgets.so.5
#11 0x00007f14345e0161 in QWidget::destroy(bool, bool) () at /usr/lib/libQt5Widgets.so.5
#12 0x00007f14345e7d6d in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#13 0x00007f142f898085 in KMainWindow::~KMainWindow() () at /usr/lib/libKF5XmlGui.so.5
#14 0x00007f14362d0439 in  () at /usr/lib/libdigikamgui.so.5.9.0
#15 0x00007f14362d04e9 in  () at /usr/lib/libdigikamgui.so.5.9.0
#16 0x00007f1433c5f371 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#17 0x00007f14345ecb0c in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#18 0x00007f14346f8445 in QMainWindow::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#19 0x00007f142f89a5ac in KMainWindow::event(QEvent*) () at /usr/lib/libKF5XmlGui.so.5
#20 0x00007f142f8e4cb6 in KXmlGuiWindow::event(QEvent*) () at /usr/lib/libKF5XmlGui.so.5
#21 0x00007f14345ace14 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#22 0x00007f14345b46e1 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#23 0x00007f1433c34c39 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#24 0x00007f1433c37ccc in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#25 0x00007f1433c3bbe0 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#26 0x0000556a591df59f in  ()
#27 0x00007f1433476223 in __libc_start_main () at /usr/lib/libc.so.6
#28 0x0000556a591e044e in _start ()
[Inferior 1 (process 5380) detached]

Reported using DrKonqi
Comment 1 Maik Qualmann 2018-11-18 14:12:51 UTC 

*** This bug has been marked as a duplicate of bug 394865 ***
Comment 2 caulier.gilles 2019-08-15 15:29:34 UTC 
Fixed with bug #394865