Application: digikam (5.5.0)
 (Compiled from sources)
Qt Version: 5.8.0
Frameworks Version: 5.35.0
Operating System: Linux 4.9.30-ck1-mainline-core2-rjvb x86_64
Distribution: Ubuntu 14.04.5 LTS

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

I changed my DB backend from SQLite to MySQL (MariaDB) and thus had to add all my collections anew. This crash happened at some point after adding the last remote collection (I came back to the machine to find DrKonqi instead of DigiKam).

Probably a bug in dbus or even libc (reported: https://bugs.launchpad.net/ubuntu/+source/dbus/+bug/1702477), reporting here for reference (and just in case digiKam actually did do something naughty).

-- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff88dbe1880 (LWP 28796))]

Thread 15 (Thread 0x7ff869a6b700 (LWP 28799)):
#0  0x00007ff888ff7c5d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff87b312b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ff87b31464f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ff86c0d0549 in QXcbEventReader::run (this=0x857c10) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/plugins/platforms/xcb/qxcbconnection.cpp:1345
#4  0x00007ff8898c0cf9 in QThreadPrivate::start (arg=0x857c10) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qthread_unix.cpp:368
#5  0x00007ff885d94184 in start_thread (arg=0x7ff869a6b700) at pthread_create.c:312
#6  0x00007ff889004ffd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 14 (Thread 0x7ff860380700 (LWP 28800)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
#1  0x00007ff888f8c0da in _L_lock_13302 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ff888f89ad5 in __GI___libc_malloc (bytes=128) at malloc.c:2889
#3  0x00007ff8898c1e1c in QArrayData::allocate (objectSize=objectSize@entry=2, alignment=alignment@entry=8, capacity=capacity@entry=52, options=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/tools/qarraydata.cpp:106
#4  0x00007ff88993c66f in allocate (options=..., capacity=52) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/include/QtCore/../../src/corelib/tools/qarraydata.h:222
#5  QString::reallocData (this=this@entry=0x7ff86037f930, alloc=52, grow=grow@entry=true) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/tools/qstring.cpp:1781
#6  0x00007ff88993c7b8 in QString::resize (this=this@entry=0x7ff86037f930, size=size@entry=32) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/tools/qstring.cpp:1692
#7  0x00007ff889942bb2 in append_utf8 (len=32, cs=0x7ff889be5a50 "QSocketNotifier: Invalid socket %d and type '%s', disabling...", qs=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/tools/qstring.cpp:5974
#8  QString::vasprintf (cformat=cformat@entry=0x7ff889be5a50 "QSocketNotifier: Invalid socket %d and type '%s', disabling...", ap=ap@entry=0x7ff86037fa58) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/tools/qstring.cpp:6067
#9  0x00007ff8898a659e in qt_message(QtMsgType, const QMessageLogContext &, const char *, typedef __va_list_tag __va_list_tag *) (msgType=msgType@entry=QtWarningMsg, context=..., msg=msg@entry=0x7ff889be5a50 "QSocketNotifier: Invalid socket %d and type '%s', disabling...", ap=ap@entry=0x7ff86037fa58) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/global/qlogging.cpp:279
#10 0x00007ff8898a7329 in QMessageLogger::warning (this=this@entry=0x7ff86037fb30, msg=msg@entry=0x7ff889be5a50 "QSocketNotifier: Invalid socket %d and type '%s', disabling...") at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/global/qlogging.cpp:558
#11 0x00007ff889addcea in socketNotifierSourceCheck (source=source@entry=0x7ff858002e00) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:86
#12 0x00007ff87fd2fc62 in g_main_context_check (context=context@entry=0x7ff858000990, max_priority=2147483647, fds=fds@entry=0x7ff858003020, n_fds=n_fds@entry=3) at gmain.c:3750
#13 0x00007ff87fd3028c in g_main_context_iterate (context=context@entry=0x7ff858000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3914
#14 0x00007ff87fd303ec in g_main_context_iteration (context=0x7ff858000990, may_block=may_block@entry=1) at gmain.c:3978
#15 0x00007ff889ade57f in QEventDispatcherGlib::processEvents (this=0x7ff8580008c0, flags=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:423
#16 0x00007ff889a8a17a in QEventLoop::exec (this=this@entry=0x7ff86037fd20, flags=..., flags@entry=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qeventloop.cpp:212
#17 0x00007ff8898bc2ab in QThread::exec (this=this@entry=0x7ff886234460 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qthread.cpp:507
#18 0x00007ff885fc4005 in QDBusConnectionManager::run (this=0x7ff886234460 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/dbus/qdbusconnection.cpp:170
#19 0x00007ff8898c0cf9 in QThreadPrivate::start (arg=0x7ff886234460 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qthread_unix.cpp:368
#20 0x00007ff885d94184 in start_thread (arg=0x7ff860380700) at pthread_create.c:312
#21 0x00007ff889004ffd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 13 (Thread 0x7ff85ef4e700 (LWP 28801)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff8898c1aeb in wait (time=18446744073709551615, this=0x9dbbd0) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x9da400, mutex=mutex@entry=0x9da3f8, time=time@entry=18446744073709551615) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qwaitcondition_unix.cpp:215
#3  0x00007ff88d09b88a in Digikam::ScanController::run (this=0x7ff88da79940 <_ZZN7Digikam12_GLOBAL__N_113Q_QGS_creator13innerFunctionEvE6holder>) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-digikam/kf5-digikam/work/digikam-5.5.0/core/libs/database/utils/scancontroller.cpp:677
#4  0x00007ff8898c0cf9 in QThreadPrivate::start (arg=0x7ff88da79940 <_ZZN7Digikam12_GLOBAL__N_113Q_QGS_creator13innerFunctionEvE6holder>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qthread_unix.cpp:368
#5  0x00007ff885d94184 in start_thread (arg=0x7ff85ef4e700) at pthread_create.c:312
#6  0x00007ff889004ffd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 12 (Thread 0x7ff85e001700 (LWP 28825)):
#0  0x00007ff888fcbd4d in nanosleep () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff889add88d in qt_nanosleep (amount=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qelapsedtimer_unix.cpp:195
#2  0x00007ff8898c00bb in QThread::sleep (secs=secs@entry=1) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qthread_unix.cpp:501
#3  0x00007ff88c0d6dc1 in Digikam::DatabaseServer::run (this=0x96dcb0) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-digikam/kf5-digikam/work/digikam-5.5.0/core/libs/database/server/databaseserver.cpp:131
#4  0x00007ff8898c0cf9 in QThreadPrivate::start (arg=0x96dcb0) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qthread_unix.cpp:368
#5  0x00007ff885d94184 in start_thread (arg=0x7ff85e001700) at pthread_create.c:312
#6  0x00007ff889004ffd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 11 (Thread 0x7ff85d5f5700 (LWP 28832)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff8898c1aeb in wait (time=18446744073709551615, this=0x1297550) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this@entry=0x1293910, mutex=mutex@entry=0x1293908, time=time@entry=18446744073709551615) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qwaitcondition_unix.cpp:215
#3  0x00007ff88c373084 in Digikam::ParkingThread::run (this=0x12938f0) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-digikam/kf5-digikam/work/digikam-5.5.0/core/libs/threads/threadmanager.cpp:115
#4  0x00007ff8898c0cf9 in QThreadPrivate::start (arg=0x12938f0) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qthread_unix.cpp:368
#5  0x00007ff885d94184 in start_thread (arg=0x7ff85d5f5700) at pthread_create.c:312
#6  0x00007ff889004ffd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 10 (Thread 0x7ff85cdf4700 (LWP 28834)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff87f201fdb in WTF::TCMalloc_PageHeap::scavengerThread() () from /opt/local/libexec/qt5/lib/libQt5WebKit.so.5
#2  0x00007ff87f202019 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /opt/local/libexec/qt5/lib/libQt5WebKit.so.5
#3  0x00007ff885d94184 in start_thread (arg=0x7ff85cdf4700) at pthread_create.c:312
#4  0x00007ff889004ffd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 9 (Thread 0x7ff805617700 (LWP 28835)):
#0  0x00007ff888ff7c5d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff87fd302e6 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7ff800002e70, timeout=<optimized out>, context=0x7ff800000990) at gmain.c:4216
#2  g_main_context_iterate (context=context@entry=0x7ff800000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3912
#3  0x00007ff87fd303ec in g_main_context_iteration (context=0x7ff800000990, may_block=may_block@entry=1) at gmain.c:3978
#4  0x00007ff889ade59b in QEventDispatcherGlib::processEvents (this=0x7ff8000008c0, flags=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:425
#5  0x00007ff889a8a17a in QEventLoop::exec (this=this@entry=0x7ff805616d50, flags=..., flags@entry=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qeventloop.cpp:212
#6  0x00007ff8898bc2ab in QThread::exec (this=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qthread.cpp:507
#7  0x00007ff8898c0cf9 in QThreadPrivate::start (arg=0x13839a0) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qthread_unix.cpp:368
#8  0x00007ff885d94184 in start_thread (arg=0x7ff805617700) at pthread_create.c:312
#9  0x00007ff889004ffd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 8 (Thread 0x7ff7fffff700 (LWP 28836)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff87ef0a0d1 in JSC::BlockAllocator::blockFreeingThreadMain() () from /opt/local/libexec/qt5/lib/libQt5WebKit.so.5
#2  0x00007ff87f231f61 in WTF::wtfThreadEntryPoint(void*) () from /opt/local/libexec/qt5/lib/libQt5WebKit.so.5
#3  0x00007ff885d94184 in start_thread (arg=0x7ff7fffff700) at pthread_create.c:312
#4  0x00007ff889004ffd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 7 (Thread 0x7ff7ff7fe700 (LWP 28837)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff87ef0b1f3 in JSC::GCThread::gcThreadMain() () from /opt/local/libexec/qt5/lib/libQt5WebKit.so.5
#2  0x00007ff87f231f61 in WTF::wtfThreadEntryPoint(void*) () from /opt/local/libexec/qt5/lib/libQt5WebKit.so.5
#3  0x00007ff885d94184 in start_thread (arg=0x7ff7ff7fe700) at pthread_create.c:312
#4  0x00007ff889004ffd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7ff7feffd700 (LWP 28838)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff87ef0b1f3 in JSC::GCThread::gcThreadMain() () from /opt/local/libexec/qt5/lib/libQt5WebKit.so.5
#2  0x00007ff87f231f61 in WTF::wtfThreadEntryPoint(void*) () from /opt/local/libexec/qt5/lib/libQt5WebKit.so.5
#3  0x00007ff885d94184 in start_thread (arg=0x7ff7feffd700) at pthread_create.c:312
#4  0x00007ff889004ffd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7ff7fe7fc700 (LWP 28839)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff87ef0b1f3 in JSC::GCThread::gcThreadMain() () from /opt/local/libexec/qt5/lib/libQt5WebKit.so.5
#2  0x00007ff87f231f61 in WTF::wtfThreadEntryPoint(void*) () from /opt/local/libexec/qt5/lib/libQt5WebKit.so.5
#3  0x00007ff885d94184 in start_thread (arg=0x7ff7fe7fc700) at pthread_create.c:312
#4  0x00007ff889004ffd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7ff7827f4700 (LWP 28896)):
#0  qt_gettime () at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qelapsedtimer_unix.cpp:182
#1  0x00007ff889adc0b9 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7ff7e0014b60) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qtimerinfo_unix.cpp:91
#2  0x00007ff889adc625 in QTimerInfoList::timerWait (this=0x7ff7e0014b60, tm=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qtimerinfo_unix.cpp:388
#3  0x00007ff889adde04 in timerSourcePrepareHelper (timeout=0x7ff7827f3bcc, src=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:132
#4  idleTimerSourcePrepare (source=source@entry=0x7ff7e0002db0, timeout=timeout@entry=0x7ff7827f3bcc) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:212
#5  0x00007ff87fd2f6eb in g_main_context_prepare (context=context@entry=0x7ff7e0013690, priority=priority@entry=0x7ff7827f3c28) at gmain.c:3489
#6  0x00007ff87fd30213 in g_main_context_iterate (context=context@entry=0x7ff7e0013690, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3897
#7  0x00007ff87fd303ec in g_main_context_iteration (context=0x7ff7e0013690, may_block=may_block@entry=1) at gmain.c:3978
#8  0x00007ff889ade59b in QEventDispatcherGlib::processEvents (this=0x7ff7e00137b0, flags=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:425
#9  0x00007ff889a8a17a in QEventLoop::exec (this=this@entry=0x7ff7827f3d50, flags=..., flags@entry=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qeventloop.cpp:212
#10 0x00007ff8898bc2ab in QThread::exec (this=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qthread.cpp:507
#11 0x00007ff8898c0cf9 in QThreadPrivate::start (arg=0x3834650) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qthread_unix.cpp:368
#12 0x00007ff885d94184 in start_thread (arg=0x7ff7827f4700) at pthread_create.c:312
#13 0x00007ff889004ffd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7ff7837f6700 (LWP 28898)):
#0  0x00007ff888ff7c5d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff87fd302e6 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7ff7dc029460, timeout=<optimized out>, context=0x7ff7dc0138e0) at gmain.c:4216
#2  g_main_context_iterate (context=context@entry=0x7ff7dc0138e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3912
#3  0x00007ff87fd303ec in g_main_context_iteration (context=0x7ff7dc0138e0, may_block=may_block@entry=1) at gmain.c:3978
#4  0x00007ff889ade59b in QEventDispatcherGlib::processEvents (this=0x7ff7dc0013a0, flags=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:425
#5  0x00007ff889a8a17a in QEventLoop::exec (this=this@entry=0x7ff7837f5d50, flags=..., flags@entry=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qeventloop.cpp:212
#6  0x00007ff8898bc2ab in QThread::exec (this=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qthread.cpp:507
#7  0x00007ff8898c0cf9 in QThreadPrivate::start (arg=0x301b580) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qthread_unix.cpp:368
#8  0x00007ff885d94184 in start_thread (arg=0x7ff7837f6700) at pthread_create.c:312
#9  0x00007ff889004ffd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7ff782ff5700 (LWP 29409)):
#0  0x00007ff888ff634d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff888f815b0 in _IO_new_file_underflow (fp=0x7ff7d8d106d0) at fileops.c:613
#2  0x00007ff888f803a8 in __GI__IO_file_xsgetn (fp=0x7ff7d8d106d0, data=<optimized out>, n=4096) at fileops.c:1418
#3  0x00007ff888f7586f in __GI__IO_fread (buf=<optimized out>, size=1, count=4096, fp=0x7ff7d8d106d0) at iofread.c:42
#4  0x00007ff883eba704 in fill_input_buffer () from /opt/local/lib/libjpeg.so.8
#5  0x00007ff883ec2a2a in jpeg_fill_bit_buffer () from /opt/local/lib/libjpeg.so.8
#6  0x00007ff883ec40b2 in decode_mcu () from /opt/local/lib/libjpeg.so.8
#7  0x00007ff883ebb51b in decompress_onepass () from /opt/local/lib/libjpeg.so.8
#8  0x00007ff883ec527e in process_data_simple_main () from /opt/local/lib/libjpeg.so.8
#9  0x00007ff883eb999a in jpeg_read_scanlines () from /opt/local/lib/libjpeg.so.8
#10 0x00007ff88c11b904 in Digikam::JPEGLoader::load (this=this@entry=0x7ff782ff44e0, filePath=..., observer=observer@entry=0x5b14fa0) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-digikam/kf5-digikam/work/digikam-5.5.0/core/libs/dimg/loaders/jpegloader.cpp:427
#11 0x00007ff88c28e9c9 in Digikam::DImg::load (this=0x7ff782ff4650, filePath=..., loadFlagsInt=13, observer=observer@entry=0x5b14fa0, rawDecodingSettings=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-digikam/kf5-digikam/work/digikam-5.5.0/core/libs/dimg/dimg.cpp:426
#12 0x00007ff88c28f1e0 in Digikam::DImg::load (this=this@entry=0x7ff782ff4650, filePath=..., loadMetadata=loadMetadata@entry=false, loadICCData=<optimized out>, loadUniqueHash=loadUniqueHash@entry=false, loadImageHistory=loadImageHistory@entry=false, observer=0x5b14fa0, rawDecodingSettings=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-digikam/kf5-digikam/work/digikam-5.5.0/core/libs/dimg/dimg.cpp:398
#13 0x00007ff88c348f43 in Digikam::ThumbnailCreator::loadWithDImg (this=this@entry=0x17a7bc0, path=..., profile=profile@entry=0x7ff782ff4730) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-digikam/kf5-digikam/work/digikam-5.5.0/core/libs/threadimageio/thumbnailcreator.cpp:603
#14 0x00007ff88c34b026 in Digikam::ThumbnailCreator::createThumbnail (this=this@entry=0x17a7bc0, info=..., detailRect=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-digikam/kf5-digikam/work/digikam-5.5.0/core/libs/threadimageio/thumbnailcreator.cpp:504
#15 0x00007ff88c34db47 in Digikam::ThumbnailCreator::load (this=0x17a7bc0, identifier=..., rect=..., pregenerate=pregenerate@entry=false) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-digikam/kf5-digikam/work/digikam-5.5.0/core/libs/threadimageio/thumbnailcreator.cpp:264
#16 0x00007ff88c34e34f in Digikam::ThumbnailCreator::load (this=<optimized out>, identifier=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-digikam/kf5-digikam/work/digikam-5.5.0/core/libs/threadimageio/thumbnailcreator.cpp:181
#17 0x00007ff88c35bb4c in Digikam::ThumbnailLoadingTask::execute (this=0x5b14f90) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-digikam/kf5-digikam/work/digikam-5.5.0/core/libs/threadimageio/thumbnailtask.cpp:166
#18 0x00007ff88c330204 in Digikam::LoadSaveThread::run (this=0x7ff88ce9dda0 <Digikam::(anonymous namespace)::Q_QGS_defaultObject::innerFunction()::holder>) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-digikam/kf5-digikam/work/digikam-5.5.0/core/libs/threadimageio/loadsavethread.cpp:133
#19 0x00007ff88c37462e in Digikam::DynamicThread::DynamicThreadPriv::run (this=0x17a7ae0) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-digikam/kf5-digikam/work/digikam-5.5.0/core/libs/threads/dynamicthread.cpp:183
#20 0x00007ff8898bd21f in QThreadPoolThread::run (this=0x2427b40) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qthreadpool.cpp:99
#21 0x00007ff8898c0cf9 in QThreadPrivate::start (arg=0x2427b40) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/thread/qthread_unix.cpp:368
#22 0x00007ff885d94184 in start_thread (arg=0x7ff782ff5700) at pthread_create.c:312
#23 0x00007ff889004ffd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7ff88dbe1880 (LWP 28796)):
[KCrash Handler]
#6  0x00007ff888f85809 in malloc_consolidate (av=av@entry=0x7ff858000020) at malloc.c:4159
#7  0x00007ff888f878b8 in _int_malloc (av=av@entry=0x7ff858000020, bytes=bytes@entry=9425) at malloc.c:3425
#8  0x00007ff888f89311 in _int_realloc (av=0x7ff858000020, oldp=0x7ff858063130, oldsize=288, nb=9440) at malloc.c:4288
#9  0x00007ff888f8a2f9 in __GI___libc_realloc (oldmem=0x7ff858063140, bytes=9420) at malloc.c:3031
#10 0x00007ff87aa56f9a in dbus_realloc (memory=<optimized out>, bytes=<optimized out>) at ../../dbus/dbus-memory.c:677
#11 0x00007ff87aa5737f in reallocate_for_length (new_length=9412, real=0x7ff8580fda30) at ../../dbus/dbus-string.c:352
#12 set_length (real=real@entry=0x7ff8580fda30, new_length=9412) at ../../dbus/dbus-string.c:393
#13 0x00007ff87aa57466 in open_gap (len=9216, dest=0x7ff8580fda30, insert_at=196) at ../../dbus/dbus-string.c:414
#14 0x00007ff87aa575ab in copy (start=start@entry=0, len=len@entry=9216, dest=dest@entry=0x7ff8580fda30, insert_at=insert_at@entry=196, source=0x7ffe958253b0) at ../../dbus/dbus-string.c:1221
#15 0x00007ff87aa57dd5 in _dbus_string_copy_len (source=source@entry=0x7ffe958253b0, start=start@entry=0, len=len@entry=9216, dest=dest@entry=0x7ff8580fda30, insert_at=insert_at@entry=196) at ../../dbus/dbus-string.c:1391
#16 0x00007ff87aa56969 in marshal_1_octets_array (byte_order=<optimized out>, pos_after=0x7ffe95825480, n_elements=9216, value=<optimized out>, insert_at=196, str=0x7ff8580fda30) at ../../dbus/dbus-marshal-basic.c:929
#17 _dbus_marshal_write_fixed_multi (str=0x7ff8580fda30, insert_at=196, element_type=element_type@entry=121, value=value@entry=0x7ffe95825448, n_elements=n_elements@entry=9216, byte_order=<optimized out>, pos_after=pos_after@entry=0x7ffe95825480) at ../../dbus/dbus-marshal-basic.c:1106
#18 0x00007ff87aa44ce5 in _dbus_type_writer_write_fixed_multi (writer=writer@entry=0x7ffe95825460, element_type=element_type@entry=121, value=value@entry=0x7ffe95825448, n_elements=9216) at ../../dbus/dbus-marshal-recursive.c:2376
#19 0x00007ff87aa48466 in dbus_message_iter_append_fixed_array (iter=iter@entry=0x7ffe95825450, element_type=element_type@entry=121, value=value@entry=0x7ffe95825448, n_elements=<optimized out>) at ../../dbus/dbus-message.c:2745
#20 0x00007ff8860068e6 in q_dbus_message_iter_append_fixed_array (n_elements=<optimized out>, value=0x7ffe95825448, element_type=121, iter=0x7ffe95825450) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/dbus/qdbus_symbols_p.h:303
#21 append (arg=..., this=0x458cd70) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/dbus/qdbusmarshaller.cpp:179
#22 QDBusArgument::operator<< (this=0x7ffe95825530, arg=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/dbus/qdbusargument.cpp:547
#23 0x00007ff88234be6f in operator<< (image=..., argument=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_KF5-Frameworks/kf5-knotifications/work/knotifications-5.35.0/src/imageconverter.cpp:42
#24 qDBusMarshallHelper<ImageConverter::SpecImage> (arg=..., t=0x1b300a0) at /opt/local/include/qt5/QtDBus/qdbusmetatype.h:68
#25 0x00007ff88600cb28 in QDBusMetaType::marshall (arg=..., id=<optimized out>, data=data@entry=0x1b300a0) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/dbus/qdbusmetatype.cpp:256
#26 0x00007ff886007abb in QDBusMarshaller::appendRegisteredType (this=this@entry=0x7ffe958256c0, arg=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/dbus/qdbusmarshaller.cpp:531
#27 0x00007ff8860092c6 in QDBusMarshaller::appendVariantInternal (this=this@entry=0x7ffe958256c0, arg=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/dbus/qdbusmarshaller.cpp:504
#28 0x00007ff88600b724 in QDBusMarshaller::append (this=0x5625b40, arg=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/dbus/qdbusmarshaller.cpp:221
#29 0x00007ff88600a670 in QDBusArgument::operator<< (this=this@entry=0x7ffe95825830, arg=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/dbus/qdbusargument.cpp:511
#30 0x00007ff8875b3c3e in operator<< (map=..., arg=...) at /opt/local/include/qt5/QtDBus/qdbusargument.h:347
#31 qDBusMarshallHelper<QMap<QString, QVariant> > (arg=..., t=<optimized out>) at /opt/local/include/qt5/QtDBus/qdbusmetatype.h:68
#32 0x00007ff88600cb28 in QDBusMetaType::marshall (arg=..., id=<optimized out>, data=data@entry=0x6522ce0) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/dbus/qdbusmetatype.cpp:256
#33 0x00007ff886007abb in QDBusMarshaller::appendRegisteredType (this=this@entry=0x7ffe958259e0, arg=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/dbus/qdbusmarshaller.cpp:531
#34 0x00007ff8860092c6 in QDBusMarshaller::appendVariantInternal (this=this@entry=0x7ffe958259e0, arg=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/dbus/qdbusmarshaller.cpp:504
#35 0x00007ff885fd95d0 in QDBusMessagePrivate::toDBusMessage (message=..., capabilities=..., error=error@entry=0x7ffe95825bb0) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/dbus/qdbusmessage.cpp:194
#36 0x00007ff885fd3fa0 in QDBusConnectionPrivate::sendWithReplyAsync (this=0x7ff8580030f0, message=..., receiver=receiver@entry=0x0, returnMethod=returnMethod@entry=0x0, errorMethod=errorMethod@entry=0x0, timeout=timeout@entry=-1) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/dbus/qdbusintegrator.cpp:2141
#37 0x00007ff885fc2688 in QDBusConnection::asyncCall (this=this@entry=0x7ffe95825d10, message=..., timeout=timeout@entry=-1) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/dbus/qdbusconnection.cpp:703
#38 0x00007ff8823465f0 in NotifyByPopupPrivate::sendNotificationToGalagoServer (this=0x63e4860, notification=<optimized out>, notification@entry=0x57e74b0, notifyConfig_nocheck=..., update=update@entry=false) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_KF5-Frameworks/kf5-knotifications/work/knotifications-5.35.0/src/notifybypopup.cpp:738
#39 0x00007ff882349135 in NotifyByPopup::notify (this=0x64db280, notification=0x57e74b0, notifyConfig=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_KF5-Frameworks/kf5-knotifications/work/knotifications-5.35.0/src/notifybypopup.cpp:243
#40 0x00007ff88232ac4b in KNotificationManager::notify (this=0x7ff882577300 <(anonymous namespace)::Q_QGS_s_self::innerFunction()::holder>, n=0x57e74b0) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_KF5-Frameworks/kf5-knotifications/work/knotifications-5.35.0/src/knotificationmanager.cpp:242
#41 0x00007ff8823278a4 in KNotification::sendEvent (this=0x57e74b0) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_KF5-Frameworks/kf5-knotifications/work/knotifications-5.35.0/src/knotification.cpp:425
#42 0x00007ff889ab8121 in QObject::event (this=0x57e74b0, e=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qobject.cpp:1263
#43 0x00007ff88a8008ac in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x57e74b0, e=0x3c6a500) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/widgets/kernel/qapplication.cpp:3745
#44 0x00007ff88a807b21 in QApplication::notify (this=0x7ffe95826900, receiver=0x57e74b0, e=0x3c6a500) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/widgets/kernel/qapplication.cpp:3502
#45 0x00007ff889a8c018 in QCoreApplication::notifyInternal2 (receiver=0x57e74b0, event=event@entry=0x3c6a500) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qcoreapplication.cpp:995
#46 0x00007ff889a8e67d in sendEvent (event=0x3c6a500, receiver=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qcoreapplication.h:231
#47 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x76f170) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qcoreapplication.cpp:1655
#48 0x00007ff889a8eae8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qcoreapplication.cpp:1509
#49 0x00007ff889ade173 in postEventSourceDispatch (s=0x878770) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:276
#50 0x00007ff87fd300f7 in g_main_dispatch (context=0x7ff8640016f0) at gmain.c:3191
#51 g_main_context_dispatch (context=context@entry=0x7ff8640016f0) at gmain.c:3844
#52 0x00007ff87fd30348 in g_main_context_iterate (context=context@entry=0x7ff8640016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3917
#53 0x00007ff87fd303ec in g_main_context_iteration (context=0x7ff8640016f0, may_block=may_block@entry=1) at gmain.c:3978
#54 0x00007ff889ade57f in QEventDispatcherGlib::processEvents (this=0x87c770, flags=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:423
#55 0x00007ff889a8a17a in QEventLoop::exec (this=this@entry=0x7ffe95826490, flags=..., flags@entry=...) at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qeventloop.cpp:212
#56 0x00007ff889a92524 in QCoreApplication::exec () at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/kernel/qcoreapplication.cpp:1268
#57 0x00007ff889ff6b8c in QGuiApplication::exec () at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/gui/kernel/qguiapplication.cpp:1661
#58 0x00007ff88a800805 in QApplication::exec () at /opt/local/var/lnxports/build/_opt_local_site-ports_aqua_qt5-kde-devel/qt5-kde-devel/work/qt-everywhere-opensource-src-5.8.0/qtbase/src/widgets/kernel/qapplication.cpp:2921
#59 0x0000000000405fd1 in main (argc=<optimized out>, argv=<optimized out>) at /opt/local/var/lnxports/build/_opt_local_site-ports_kf5_kf5-digikam/kf5-digikam/work/digikam-5.5.0/core/app/main/main.cpp:240

Possible duplicates by query: bug 281524.

Reported using DrKonqi