Application: ksnapshot (0.8.2)
KDE Platform Version: 4.14.13
Qt Version: 4.8.6
Operating System: Linux 4.2.0-27-generic x86_64
Distribution: Ubuntu 15.10

-- Information about the crash:
- What I was doing when the application crashed:
I click on send to upload screenshot to imgur from kscreenshot.

The crash can be reproduced every time.

-- Backtrace:
Application: KSnapshot (ksnapshot), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1db7cbd840 (LWP 13115))]

Thread 6 (Thread 0x7f1da61cd700 (LWP 13116)):
#0  0x00007f1db44278dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f1db10d01ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1db10d02fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1db5c2c20e in QEventDispatcherGlib::processEvents (this=0x7f1da00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#4  0x00007f1db5bfa0d1 in QEventLoop::processEvents (this=this@entry=0x7f1da61ccd40, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f1db5bfa445 in QEventLoop::exec (this=this@entry=0x7f1da61ccd40, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f1db5ae94f9 in QThread::exec (this=this@entry=0x2398460) at thread/qthread.cpp:538
#7  0x00007f1db5bda133 in QInotifyFileSystemWatcherEngine::run (this=0x2398460) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f1db5aebd1c in QThreadPrivate::start (arg=0x2398460) at thread/qthread_unix.cpp:349
#9  0x00007f1db1a046aa in start_thread (arg=0x7f1da61cd700) at pthread_create.c:333
#10 0x00007f1db4432eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f1d8c849700 (LWP 13141)):
#0  0x00007f1db44278dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f1d931ab12c in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x00007f1db1a046aa in start_thread (arg=0x7f1d8c849700) at pthread_create.c:333
#3  0x00007f1db4432eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f1d8a9af700 (LWP 13142)):
#0  0x00007f1db44278dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f1db10d01ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1db10d02fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1db5c2c20e in QEventDispatcherGlib::processEvents (this=0x7f1d840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#4  0x00007f1db5bfa0d1 in QEventLoop::processEvents (this=this@entry=0x7f1d8a9aed40, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f1db5bfa445 in QEventLoop::exec (this=this@entry=0x7f1d8a9aed40, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f1db5ae94f9 in QThread::exec (this=this@entry=0x26f6c90) at thread/qthread.cpp:538
#7  0x00007f1db5bda133 in QInotifyFileSystemWatcherEngine::run (this=0x26f6c90) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f1db5aebd1c in QThreadPrivate::start (arg=0x26f6c90) at thread/qthread_unix.cpp:349
#9  0x00007f1db1a046aa in start_thread (arg=0x7f1d8a9af700) at pthread_create.c:333
#10 0x00007f1db4432eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f1d7c4bb700 (LWP 13144)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1db5aec286 in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x2825920) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2824b68, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f1da50777f8 in KIPIPlugins::KPRawThumbThread::run() () from /usr/lib/digikam/libkipiplugins.so.4.12.0
#4  0x00007f1db5aebd1c in QThreadPrivate::start (arg=0x2824f90) at thread/qthread_unix.cpp:349
#5  0x00007f1db1a046aa in start_thread (arg=0x7f1d7c4bb700) at pthread_create.c:333
#6  0x00007f1db4432eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f1d7bcba700 (LWP 13160)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1db5aec286 in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x2882a90) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2881c78, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f1da50777f8 in KIPIPlugins::KPRawThumbThread::run() () from /usr/lib/digikam/libkipiplugins.so.4.12.0
#4  0x00007f1db5aebd1c in QThreadPrivate::start (arg=0x2882100) at thread/qthread_unix.cpp:349
#5  0x00007f1db1a046aa in start_thread (arg=0x7f1d7bcba700) at pthread_create.c:333
#6  0x00007f1db4432eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f1db7cbd840 (LWP 13115)):
[KCrash Handler]
#6  QPixmapData::isNull (this=<optimized out>) at image/qpixmapdata_p.h:131
#7  QPixmap::isNull (this=this@entry=0x23adc88) at image/qpixmap.cpp:579
#8  0x00007f1db502196b in QPixmap::copy (this=this@entry=0x23adc88, rect=...) at image/qpixmap.cpp:382
#9  0x00007f1db50226bf in QPixmap::QPixmap (this=0x7fff21036d70, pixmap=...) at image/qpixmap.cpp:303
#10 0x00007f1db697ff38 in KPixmapSequence::frameAt (this=0x28af1d8, index=1) at ../../kdeui/util/kpixmapsequence.cpp:143
#11 0x00007f1da5089261 in KIPIPlugins::KPImagesList::slotProgressTimerDone() () from /usr/lib/digikam/libkipiplugins.so.4.12.0
#12 0x00007f1db5c0ff60 in QMetaObject::activate (sender=0x285ce40, m=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3567
#13 0x00007f1db5c15bd3 in QObject::event (this=0x285ce40, e=<optimized out>) at kernel/qobject.cpp:1253
#14 0x00007f1db4f44cdc in QApplicationPrivate::notify_helper (this=this@entry=0x22c3280, receiver=receiver@entry=0x285ce40, e=e@entry=0x7fff210371e0) at kernel/qapplication.cpp:4570
#15 0x00007f1db4f4bc16 in QApplication::notify (this=this@entry=0x7fff21037550, receiver=receiver@entry=0x285ce40, e=e@entry=0x7fff210371e0) at kernel/qapplication.cpp:4356
#16 0x00007f1db68ffa2a in KApplication::notify (this=0x7fff21037550, receiver=0x285ce40, event=0x7fff210371e0) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007f1db5bfb85d in QCoreApplication::notifyInternal (this=0x7fff21037550, receiver=0x285ce40, event=event@entry=0x7fff210371e0) at kernel/qcoreapplication.cpp:955
#18 0x00007f1db5c2e6c0 in QCoreApplication::sendEvent (event=0x7fff210371e0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#19 QTimerInfoList::activateTimers (this=0x22c1fd0) at kernel/qeventdispatcher_unix.cpp:621
#20 0x00007f1db5c2b869 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:193
#21 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:240
#22 0x00007f1db10cfff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f1db10d0250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f1db10d02fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f1db5c2c1ee in QEventDispatcherGlib::processEvents (this=0x228fb90, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#26 0x00007f1db4fefc26 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007f1db5bfa0d1 in QEventLoop::processEvents (this=this@entry=0x7fff21037460, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007f1db5bfa445 in QEventLoop::exec (this=this@entry=0x7fff21037460, flags=...) at kernel/qeventloop.cpp:204
#29 0x00007f1db5c00429 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1227
#30 0x0000000000411441 in ?? ()
#31 0x00007f1db434ca40 in __libc_start_main (main=0x410a80, argc=3, argv=0x7fff21037688, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff21037678) at libc-start.c:289
#32 0x0000000000411969 in _start ()

Reported using DrKonqi