Application: digikam (4.14.0)
KDE Platform Version: 4.14.13
Qt Version: 4.8.6
Operating System: Linux 4.2.0-25-generic x86_64
Distribution: Ubuntu 15.10

-- Information about the crash:
Tried several times with different pictures, always with the same result - immediate crash, before the picture was actually exported. IIRC this was the first time I tried exporting with current version of Dikigam.

The crash can be reproduced every time.

-- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f93449c8b80 (LWP 2070))]

Thread 7 (Thread 0x7f931a68c700 (LWP 2071)):
#0  0x00007f933d4038dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f93241e312c in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x00007f9339e9e6aa in start_thread (arg=0x7f931a68c700) at pthread_create.c:333
#3  0x00007f933d40eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f93164eb700 (LWP 2072)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f933df69286 in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x26a6480) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x26a6390, mutex=mutex@entry=0x26a6388, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x0000000000604864 in Digikam::ScanController::run (this=0x26a6100) at /build/digikam-48Y6Xx/digikam-4.14.0/core/app/database/scancontroller.cpp:725
#4  0x00007f933df68d1c in QThreadPrivate::start (arg=0x26a6100) at thread/qthread_unix.cpp:349
#5  0x00007f9339e9e6aa in start_thread (arg=0x7f93164eb700) at pthread_create.c:333
#6  0x00007f933d40eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f9315cea700 (LWP 2073)):
#0  0x00007f933d4038dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f93356b81ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f93356b82fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f933e0a920e in QEventDispatcherGlib::processEvents (this=0x7f93080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#4  0x00007f933e0770d1 in QEventLoop::processEvents (this=this@entry=0x7f9315ce9a00, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f933e077445 in QEventLoop::exec (this=this@entry=0x7f9315ce9a00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f933df664f9 in QThread::exec (this=this@entry=0x26e2a00) at thread/qthread.cpp:538
#7  0x00007f933e057133 in QInotifyFileSystemWatcherEngine::run (this=0x26e2a00) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f933df68d1c in QThreadPrivate::start (arg=0x26e2a00) at thread/qthread_unix.cpp:349
#9  0x00007f9339e9e6aa in start_thread (arg=0x7f9315cea700) at pthread_create.c:333
#10 0x00007f933d40eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f93154e9700 (LWP 2075)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f933df69286 in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x2681450) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x28d56b0, mutex=mutex@entry=0x28d56a8, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f9342593082 in Digikam::ParkingThread::run (this=0x28d5690) at /build/digikam-48Y6Xx/digikam-4.14.0/core/libs/threads/threadmanager.cpp:119
#4  0x00007f933df68d1c in QThreadPrivate::start (arg=0x28d5690) at thread/qthread_unix.cpp:349
#5  0x00007f9339e9e6aa in start_thread (arg=0x7f93154e9700) at pthread_create.c:333
#6  0x00007f933d40eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f9307b8f700 (LWP 2076)):
#0  0x00007f933d4038dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f93356b81ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f93356b82fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f933e0a920e in QEventDispatcherGlib::processEvents (this=0x7f93000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#4  0x00007f933e0770d1 in QEventLoop::processEvents (this=this@entry=0x7f9307b8ea00, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f933e077445 in QEventLoop::exec (this=this@entry=0x7f9307b8ea00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f933df664f9 in QThread::exec (this=this@entry=0x2d75340) at thread/qthread.cpp:538
#7  0x00007f933e057133 in QInotifyFileSystemWatcherEngine::run (this=0x2d75340) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f933df68d1c in QThreadPrivate::start (arg=0x2d75340) at thread/qthread_unix.cpp:349
#9  0x00007f9339e9e6aa in start_thread (arg=0x7f9307b8f700) at pthread_create.c:333
#10 0x00007f933d40eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f926ea8f700 (LWP 2130)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f933df69286 in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x685b9d0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x685abc0, mutex=mutex@entry=0x685abb8, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f92c81187f8 in KIPIPlugins::KPRawThumbThread::run (this=0x685b040) at /build/digikam-48Y6Xx/digikam-4.14.0/extra/kipi-plugins/common/libkipiplugins/tools/kprawthumbthread.cpp:108
#4  0x00007f933df68d1c in QThreadPrivate::start (arg=0x685b040) at thread/qthread_unix.cpp:349
#5  0x00007f9339e9e6aa in start_thread (arg=0x7f926ea8f700) at pthread_create.c:333
#6  0x00007f933d40eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f93449c8b80 (LWP 2070)):
[KCrash Handler]
#6  QPixmapData::isNull (this=<optimized out>) at image/qpixmapdata_p.h:131
#7  QPixmap::isNull (this=this@entry=0x67bebb8) at image/qpixmap.cpp:579
#8  0x00007f933eb6496b in QPixmap::copy (this=this@entry=0x67bebb8, rect=...) at image/qpixmap.cpp:382
#9  0x00007f933eb656bf in QPixmap::QPixmap (this=0x7fff81fedd60, pixmap=...) at image/qpixmap.cpp:303
#10 0x00007f933f86af38 in KPixmapSequence::frameAt (this=0x67c9b38, index=1) at ../../kdeui/util/kpixmapsequence.cpp:143
#11 0x00007f92c812a251 in KIPIPlugins::KPImagesList::slotProgressTimerDone (this=0x67eb690) at /build/digikam-48Y6Xx/digikam-4.14.0/extra/kipi-plugins/common/libkipiplugins/widgets/kpimageslist.cpp:1153
#12 0x00007f933e08cf60 in QMetaObject::activate (sender=0x67b5d00, m=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3567
#13 0x00007f933e092bd3 in QObject::event (this=0x67b5d00, e=<optimized out>) at kernel/qobject.cpp:1253
#14 0x00007f933ea87cdc in QApplicationPrivate::notify_helper (this=this@entry=0x2537050, receiver=receiver@entry=0x67b5d00, e=e@entry=0x7fff81fee1d0) at kernel/qapplication.cpp:4570
#15 0x00007f933ea8ec16 in QApplication::notify (this=this@entry=0x7fff81fee8f0, receiver=receiver@entry=0x67b5d00, e=e@entry=0x7fff81fee1d0) at kernel/qapplication.cpp:4356
#16 0x00007f933f7eaa2a in KApplication::notify (this=0x7fff81fee8f0, receiver=0x67b5d00, event=0x7fff81fee1d0) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007f933e07885d in QCoreApplication::notifyInternal (this=0x7fff81fee8f0, receiver=0x67b5d00, event=event@entry=0x7fff81fee1d0) at kernel/qcoreapplication.cpp:955
#18 0x00007f933e0ab6c0 in QCoreApplication::sendEvent (event=0x7fff81fee1d0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#19 QTimerInfoList::activateTimers (this=0x254bc80) at kernel/qeventdispatcher_unix.cpp:621
#20 0x00007f933e0a8869 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:193
#21 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:240
#22 0x00007f93356b7ff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f93356b8250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f93356b82fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f933e0a91ee in QEventDispatcherGlib::processEvents (this=0x247cad0, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#26 0x00007f933eb32c26 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007f933e0770d1 in QEventLoop::processEvents (this=this@entry=0x7fff81fee450, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007f933e077445 in QEventLoop::exec (this=this@entry=0x7fff81fee450, flags=...) at kernel/qeventloop.cpp:204
#29 0x00007f933e07d429 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1227
#30 0x00007f933ea85f2c in QApplication::exec () at kernel/qapplication.cpp:3828
#31 0x00000000004964ae in main (argc=<optimized out>, argv=<optimized out>) at /build/digikam-48Y6Xx/digikam-4.14.0/core/app/main/main.cpp:230

Possible duplicates by query: bug 355154, bug 354364, bug Manual.

Reported using DrKonqi