Bug 402944

Summary: crash while looking at face tags
Product: [Applications] digikam Reporter: kavol <kavol>
Component: Faces-WorkflowAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: crash CC: caulier.gilles, metzpinguin
Priority: NOR Keywords: drkonqi
Version First Reported In: 6.0.0   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: https://commits.kde.org/digikam/4971bad93a2312bc02ac0a19c3960f0e7d15d473 Version Fixed/Implemented In: 6.0.0
Sentry Crash Report:

Description kavol 2019-01-06 21:08:16 UTC 
Application: digikam (6.0.0-beta3)
 (Compiled from sources)
Qt Version: 5.11.1
Frameworks Version: 5.52.0
Operating System: Linux 4.14.83-gentoo x86_64
Distribution (Platform): Gentoo Packages

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

I've opened the unconfirmed faces, deleted the first picture (that was a misidentified car wheel, oh my ...) and when clicking on the next one to see the whole photo, it crashed.

What might be of interest is that
a) on previous Digikam run, I've did a rescan for faces but that didn't finish, Digikam crashed - with a message that DrKonqi can't be run
b) in between the runs, I've deleted and moved some photos in Dolphin

-- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f64f48c3800 (LWP 5003))]

Thread 15 (Thread 0x7f6460dfe700 (LWP 5675)):
#0  0x00007f64f25e68da in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f64ed3bea11 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f64ed3b6302 in QThreadPoolThread::run() () from /usr/lib64/libQt5Core.so.5
#3  0x00007f64ed3be3ff in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f64f25df9aa in start_thread () from /lib64/libpthread.so.0
#5  0x00007f64eca3b15f in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7f64537fe700 (LWP 5674)):
#0  0x00007f64f25e68da in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f64ed3bea11 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f64ed3b6302 in QThreadPoolThread::run() () from /usr/lib64/libQt5Core.so.5
#3  0x00007f64ed3be3ff in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f64f25df9aa in start_thread () from /lib64/libpthread.so.0
#5  0x00007f64eca3b15f in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7f64521ab700 (LWP 5258)):
#0  0x00007f64eca2adf3 in write () from /lib64/libc.so.6
#1  0x00007f64ec9b63dd in _IO_file_write () from /lib64/libc.so.6
#2  0x00007f64ec9b55e3 in ?? () from /lib64/libc.so.6
#3  0x00007f64ec9b6c7e in _IO_file_xsputn () from /lib64/libc.so.6
#4  0x00007f64ec984d46 in ?? () from /lib64/libc.so.6
#5  0x00007f64ec9b8de4 in _IO_default_xsputn () from /lib64/libc.so.6
#6  0x00007f64ec988df5 in vfprintf () from /lib64/libc.so.6
#7  0x00007f64ec98a4a6 in ?? () from /lib64/libc.so.6
#8  0x00007f64ec98781e in vfprintf () from /lib64/libc.so.6
#9  0x00007f64eca4c4ad in __fprintf_chk () from /lib64/libc.so.6
#10 0x00007f64ed3af88d in stderr_message_handler(QtMsgType, QMessageLogContext const&, QString const&) () from /usr/lib64/libQt5Core.so.5
#11 0x00007f64db3fff0c in (anonymous namespace)::RemoteLogger::dbusLogger(QtMsgType, QMessageLogContext const&, QString const&) () from /usr/lib64/libKF5AkonadiCore.so.5
#12 0x00007f64ed3aaff7 in qt_message_print(QtMsgType, QMessageLogContext const&, QString const&) () from /usr/lib64/libQt5Core.so.5
#13 0x00007f64ed3ac7f8 in qt_message_output(QtMsgType, QMessageLogContext const&, QString const&) () from /usr/lib64/libQt5Core.so.5
#14 0x00007f64ed48ddc0 in QDebug::~QDebug() () from /usr/lib64/libQt5Core.so.5
#15 0x00007f64f2d07687 in Digikam::BdEngineBackendPrivate::debugOutputFailedQuery(QSqlQuery const&) const () from /usr/lib64/libdigikamcore.so.6.0.0
#16 0x00007f64f2d07c4d in Digikam::BdEngineBackend::queryErrorHandling(Digikam::DbEngineSqlQuery&, int) () from /usr/lib64/libdigikamcore.so.6.0.0
#17 0x00007f64f2d07fcf in Digikam::BdEngineBackend::exec(Digikam::DbEngineSqlQuery&) () from /usr/lib64/libdigikamcore.so.6.0.0
#18 0x00007f64f2d0894e in Digikam::BdEngineBackend::execQuery(QString const&, QVariant const&, QVariant const&, QVariant const&, QVariant const&) () from /usr/lib64/libdigikamcore.so.6.0.0
#19 0x00007f64f2d089d7 in Digikam::BdEngineBackend::execSql(QString const&, QVariant const&, QVariant const&, QVariant const&, QVariant const&, QList<QVariant>*, QVariant*) () from /usr/lib64/libdigikamcore.so.6.0.0
#20 0x00007f64f2d11ab2 in Digikam::ThumbsDb::insertThumbnail(Digikam::ThumbsDbInfo const&, QVariant*) () from /usr/lib64/libdigikamcore.so.6.0.0
#21 0x00007f64f2f3573a in Digikam::ThumbnailCreator::storeInDatabase(Digikam::ThumbnailInfo const&, Digikam::ThumbnailImage const&) const () from /usr/lib64/libdigikamcore.so.6.0.0
#22 0x00007f64f2f3766e in Digikam::ThumbnailCreator::load(Digikam::ThumbnailIdentifier const&, QRect const&, bool) const () from /usr/lib64/libdigikamcore.so.6.0.0
#23 0x00007f64f2f38122 in Digikam::ThumbnailCreator::pregenerate(Digikam::ThumbnailIdentifier const&) const () from /usr/lib64/libdigikamcore.so.6.0.0
#24 0x00007f64f2f44ec3 in Digikam::ThumbnailLoadingTask::execute() () from /usr/lib64/libdigikamcore.so.6.0.0
#25 0x00007f64f2f470ce in Digikam::LoadSaveThread::run() () from /usr/lib64/libdigikamcore.so.6.0.0
#26 0x00007f64f2f68d8e in Digikam::DynamicThread::Private::run() () from /usr/lib64/libdigikamcore.so.6.0.0
#27 0x00007f64ed3b60d1 in QThreadPoolThread::run() () from /usr/lib64/libQt5Core.so.5
#28 0x00007f64ed3be3ff in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#29 0x00007f64f25df9aa in start_thread () from /lib64/libpthread.so.0
#30 0x00007f64eca3b15f in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f6452ffd700 (LWP 5183)):
#0  0x00007f64f25e65ac in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f64ecff04dc in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/libstdc++.so.6
#2  0x00007f64efc026c7 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> > >) () from /usr/lib64/libQt5WebKit.so.5
#3  0x00007f64efc00eef in WTF::ParallelHelperPool::waitForClientWithTask(WTF::Locker<WTF::LockBase> const&) () from /usr/lib64/libQt5WebKit.so.5
#4  0x00007f64efc00fc6 in WTF::ParallelHelperPool::helperThreadBody() () from /usr/lib64/libQt5WebKit.so.5
#5  0x00007f64efc04ed8 in WTF::threadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#6  0x00007f64efc2889a in WTF::wtfThreadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#7  0x00007f64f25df9aa in start_thread () from /lib64/libpthread.so.0
#8  0x00007f64eca3b15f in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f64615ff700 (LWP 5182)):
#0  0x00007f64f25e65ac in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f64ecff04dc in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/libstdc++.so.6
#2  0x00007f64efc026c7 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> > >) () from /usr/lib64/libQt5WebKit.so.5
#3  0x00007f64efc00eef in WTF::ParallelHelperPool::waitForClientWithTask(WTF::Locker<WTF::LockBase> const&) () from /usr/lib64/libQt5WebKit.so.5
#4  0x00007f64efc00fc6 in WTF::ParallelHelperPool::helperThreadBody() () from /usr/lib64/libQt5WebKit.so.5
#5  0x00007f64efc04ed8 in WTF::threadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#6  0x00007f64efc2889a in WTF::wtfThreadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#7  0x00007f64f25df9aa in start_thread () from /lib64/libpthread.so.0
#8  0x00007f64eca3b15f in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f6453fff700 (LWP 5181)):
#0  0x00007f64f25e65ac in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f64ecff04dc in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/libstdc++.so.6
#2  0x00007f64efc026c7 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> > >) () from /usr/lib64/libQt5WebKit.so.5
#3  0x00007f64efc00eef in WTF::ParallelHelperPool::waitForClientWithTask(WTF::Locker<WTF::LockBase> const&) () from /usr/lib64/libQt5WebKit.so.5
#4  0x00007f64efc00fc6 in WTF::ParallelHelperPool::helperThreadBody() () from /usr/lib64/libQt5WebKit.so.5
#5  0x00007f64efc04ed8 in WTF::threadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#6  0x00007f64efc2889a in WTF::wtfThreadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#7  0x00007f64f25df9aa in start_thread () from /lib64/libpthread.so.0
#8  0x00007f64eca3b15f in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f64621ff700 (LWP 5037)):
#0  0x00007f64f25e65ac in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f64ecff04dc in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/libstdc++.so.6
#2  0x00007f64efc026c7 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> > >) () from /usr/lib64/libQt5WebKit.so.5
#3  0x00007f64ef590d1c in JSC::DFG::Worklist::runThread(JSC::DFG::ThreadData*) () from /usr/lib64/libQt5WebKit.so.5
#4  0x00007f64efc04ed8 in WTF::threadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#5  0x00007f64efc2889a in WTF::wtfThreadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#6  0x00007f64f25df9aa in start_thread () from /lib64/libpthread.so.0
#7  0x00007f64eca3b15f in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f64637ff700 (LWP 5036)):
#0  0x00007f64ed5a1d84 in qt_gettime() () from /usr/lib64/libQt5Core.so.5
#1  0x00007f64ed5a08e9 in QTimerInfoList::updateCurrentTime() () from /usr/lib64/libQt5Core.so.5
#2  0x00007f64ed5a217f in timerSourceCheckHelper(GTimerSource*) () from /usr/lib64/libQt5Core.so.5
#3  0x00007f64e19d4a81 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f64e19d5010 in g_main_context_iterate.isra () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f64e19d517c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#6  0x00007f64ed5a255b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#7  0x00007f64ed54ee2a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#8  0x00007f64ed3b4b2a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#9  0x00007f64ed3be3ff in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#10 0x00007f64f25df9aa in start_thread () from /lib64/libpthread.so.0
#11 0x00007f64eca3b15f in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f64a9839700 (LWP 5023)):
#0  0x00007f64f25e65ac in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f64ed3beacb in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f64f2f67a09 in Digikam::ParkingThread::run() () from /usr/lib64/libdigikamcore.so.6.0.0
#3  0x00007f64ed3be3ff in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f64f25df9aa in start_thread () from /lib64/libpthread.so.0
#5  0x00007f64eca3b15f in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f64c0f5c700 (LWP 5022)):
#0  0x00007f64f25e65ac in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f64aff81a3b in util_queue_thread_func () from /usr/lib64/dri/nouveau_dri.so
#2  0x00007f64aff81767 in impl_thrd_routine () from /usr/lib64/dri/nouveau_dri.so
#3  0x00007f64f25df9aa in start_thread () from /lib64/libpthread.so.0
#4  0x00007f64eca3b15f in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f64c175d700 (LWP 5010)):
#0  0x00007f64f25e65ac in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f64ed3beacb in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f64f3d765d6 in Digikam::ScanController::run() () from /usr/lib64/libdigikamgui.so.6.0.0
#3  0x00007f64ed3be3ff in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f64f25df9aa in start_thread () from /lib64/libpthread.so.0
#5  0x00007f64eca3b15f in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f64c296e700 (LWP 5009)):
#0  0x00007f64eca2f5f3 in poll () from /lib64/libc.so.6
#1  0x00007f64e19d5069 in g_main_context_iterate.isra () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f64e19d517c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f64ed5a255b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f64ed54ee2a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f64ed3b4b2a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f64ea357de5 in QDBusConnectionManager::run() () from /usr/lib64/libQt5DBus.so.5
#7  0x00007f64ed3be3ff in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#8  0x00007f64f25df9aa in start_thread () from /lib64/libpthread.so.0
#9  0x00007f64eca3b15f in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f64c944c700 (LWP 5008)):
#0  0x00007f64eca2f5f3 in poll () from /lib64/libc.so.6
#1  0x00007f64df4967f7 in _xcb_conn_wait () from /usr/lib64/libxcb.so.1
#2  0x00007f64df49842a in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f64cb9be9c9 in QXcbEventReader::run() () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f64ed3be3ff in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f64f25df9aa in start_thread () from /lib64/libpthread.so.0
#6  0x00007f64eca3b15f in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f64d42a6700 (LWP 5006)):
#0  0x00007f64f25e65ac in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f64ecff04dc in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/libstdc++.so.6
#2  0x00007f64f10dccf7 in bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop() () from /usr/lib64/libQt5WebKit.so.5
#3  0x00007f64f10dce39 in bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadEntryPoint(bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>*) () from /usr/lib64/libQt5WebKit.so.5
#4  0x00007f64ecff695e in ?? () from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/libstdc++.so.6
#5  0x00007f64f25df9aa in start_thread () from /lib64/libpthread.so.0
#6  0x00007f64eca3b15f in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f64f48c3800 (LWP 5003)):
[KCrash Handler]
#6  0x00007f64f3ea8371 in Digikam::AssignNameOverlay::checkIndex(QModelIndex const&) const () from /usr/lib64/libdigikamgui.so.6.0.0
#7  0x00007f64f3088f37 in Digikam::PersistentWidgetDelegateOverlay::slotEntered(QModelIndex const&) () from /usr/lib64/libdigikamcore.so.6.0.0
#8  0x00007f64f3ea8c4a in Digikam::AssignNameOverlay::eventFilter(QObject*, QEvent*) () from /usr/lib64/libdigikamgui.so.6.0.0
#9  0x00007f64ed54fdea in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#10 0x00007f64ee204de5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#11 0x00007f64ee20c3df in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#12 0x00007f64ed550027 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#13 0x00007f64ee209e01 in QApplicationPrivate::setFocusWidget(QWidget*, Qt::FocusReason) () from /usr/lib64/libQt5Widgets.so.5
#14 0x00007f64ee23de97 in QWidget::setFocus(Qt::FocusReason) () from /usr/lib64/libQt5Widgets.so.5
#15 0x00007f64ee205389 in QApplicationPrivate::giveFocusAccordingToFocusPolicy(QWidget*, QEvent*, QPoint) () from /usr/lib64/libQt5Widgets.so.5
#16 0x00007f64ee20df8e in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#17 0x00007f64ed550027 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#18 0x00007f64ee20b8c2 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib64/libQt5Widgets.so.5
#19 0x00007f64ee25ec43 in QWidgetWindow::handleMouseEvent(QMouseEvent*) () from /usr/lib64/libQt5Widgets.so.5
#20 0x00007f64ee261259 in QWidgetWindow::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#21 0x00007f64ee204e0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#22 0x00007f64ee20c3df in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#23 0x00007f64ed550027 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#24 0x00007f64edac492b in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /usr/lib64/libQt5Gui.so.5
#25 0x00007f64edac6685 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib64/libQt5Gui.so.5
#26 0x00007f64edaa171b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Gui.so.5
#27 0x00007f64cba4703b in QPAEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5XcbQpa.so.5
#28 0x00007f64ed54ee2a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#29 0x00007f64ed557700 in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#30 0x000055a5363ace01 in main ()

Possible duplicates by query: bug 334158, bug 329135, bug 326689, bug 315497.

Reported using DrKonqi
Comment 1 Maik Qualmann 2019-01-08 20:50:04 UTC 
Git commit 4971bad93a2312bc02ac0a19c3960f0e7d15d473 by Maik Qualmann.
Committed on 08/01/2019 at 20:48.
Pushed by mqualmann into branch 'master'.

add check for the ModellIndex
FIXED-IN: 6.0.0

M  +2    -1    NEWS
M  +5    -1    core/app/items/overlays/assignnameoverlay.cpp

https://commits.kde.org/digikam/4971bad93a2312bc02ac0a19c3960f0e7d15d473
Comment 2 Maik Qualmann 2019-01-08 20:51:49 UTC 
The problem was not reproducible here. If the problem persists, please reopen the bug.

Maik
Comment 3 kavol 2019-01-08 21:06:05 UTC 
thanks - I appreciate the quick reactions (plural, not the first bug since I had a problem after reinstall, and since I've started playing with face recognition after that), completely different experience than some other KDE stuff (do I have to point to kdepim bugs more than 10 yrs old? :-/ ) ... now that's what motivates me to work on shortening my own bugzilla queue!

the crash seems kinda random ...

be sure I'll open another report/reopen this if it matches as soon as I'll see DrKonqi again ;-)