Bug 373433 - Crash using motion freeze
Summary: Crash using motion freeze
Status: RESOLVED DUPLICATE of bug 380019
Alias: None
Product: kdenlive
Classification: Applications
Component: Effects & Transitions (show other bugs)
Version: git-master
Platform: unspecified Linux
: NOR crash
Target Milestone: ---
Assignee: Vincent PINON
URL:
Keywords: drkonqi
Depends on:
Blocks:
 
Reported: 2016-12-08 18:29 UTC by Ionut Ciocirlan
Modified: 2018-11-10 14:21 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed In:
snd.noise: MOVIT+


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Description Ionut Ciocirlan 2016-12-08 18:29:01 UTC
Application: kdenlive (17.03.70)

Qt Version: 5.7.1
Frameworks Version: 5.28.0
Operating System: Linux 4.8.0-1-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
Trying to use the motion freeze effect simply crashes the application.

Using git mlt, and git kdenlive. The same happens with the official debian testing packages.

The crash can be reproduced every time.

-- Backtrace:
Application: Kdenlive (kdenlive), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd991df7540 (LWP 3811))]

Thread 13 (Thread 0x7fd8efffd700 (LWP 3835)):
[KCrash Handler]
#6  0x00007fd9872edb50 in pthread_mutex_lock () from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007fd990a82d72 in mlt_properties_find (name=name@entry=0x7fd95b2fc5ab "_unique_id", self=self@entry=0x7fd90a50fdb0) at mlt_properties.c:513
#8  mlt_properties_get (self=self@entry=0x7fd90a50fdb0, name=name@entry=0x7fd95b2fc5ab "_unique_id") at mlt_properties.c:789
#9  0x00007fd95b2f20e2 in GlslManager::get_frame_specific_data (service=service@entry=0x7fd90a50fdb0, frame=frame@entry=0x7fd908c1b650, key=key@entry=0x7fd95b2fc5c9 "_movit effect", length=length@entry=0x0) at filter_glsl_manager.cpp:281
#10 0x00007fd95b2f21de in GlslManager::get_effect (service=service@entry=0x7fd90a50fdb0, frame=frame@entry=0x7fd908c1b650) at filter_glsl_manager.cpp:307
#11 0x00007fd95b2f3866 in build_fingerprint (service=0x7fd90a50fdb0, frame=0x7fd908c1b650, fingerprint=fingerprint@entry=0x7fd8efffca70) at filter_movit_convert.cpp:203
#12 0x00007fd95b2f3982 in build_fingerprint (service=service@entry=0x5568d8c9cc50, frame=frame@entry=0x7fd908c1f3e0, fingerprint=fingerprint@entry=0x7fd8efffca70) at filter_movit_convert.cpp:215
#13 0x00007fd95b2f5054 in finalize_movit_chain (frame=0x7fd908c1f3e0, leaf_service=0x5568d8c9cc50) at filter_movit_convert.cpp:312
#14 convert_image (frame=0x7fd908c1f3e0, image=0x7fd8efffcc58, format=0x5568cf6ae38c, output_format=mlt_image_glsl_texture) at filter_movit_convert.cpp:566
#15 0x00007fd990a7c708 in mlt_frame_get_image (self=self@entry=0x7fd908c1f3e0, buffer=buffer@entry=0x7fd8efffcc58, format=format@entry=0x5568cf6ae38c, width=width@entry=0x7fd8efffcc44, height=height@entry=0x7fd8efffcc48, writable=writable@entry=0) at mlt_frame.c:591
#16 0x00007fd990a91d79 in producer_get_image (self=self@entry=0x7fd908041210, buffer=buffer@entry=0x7fd8efffcc58, format=format@entry=0x5568cf6ae38c, width=width@entry=0x7fd8efffcc44, height=height@entry=0x7fd8efffcc48, writable=writable@entry=0) at mlt_tractor.c:370
#17 0x00007fd990a7c6b7 in mlt_frame_get_image (self=self@entry=0x7fd908041210, buffer=buffer@entry=0x7fd8efffcc58, format=format@entry=0x5568cf6ae38c, width=width@entry=0x7fd8efffcc44, height=height@entry=0x7fd8efffcc48, writable=writable@entry=0) at mlt_frame.c:585
#18 0x00007fd990a8f58c in consumer_read_ahead_thread (arg=0x5568cfb2aa00) at mlt_consumer.c:825
#19 0x00005568cbb024d5 in RenderThread::run() ()
#20 0x00007fd98ab0bd88 in QThreadPrivate::start (arg=0x7fd9000389e0) at thread/qthread_unix.cpp:368
#21 0x00007fd9872eb464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#22 0x00007fd989f0b9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 12 (Thread 0x7fd90dca5700 (LWP 3834)):
#0  0x00007fd9872f118f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fd990a8f77b in mlt_consumer_rt_frame (self=self@entry=0x5568cfb2aa00) at mlt_consumer.c:1576
#2  0x00007fd95a547c58 in consumer_thread (arg=0x5568cfb2aa00) at consumer_sdl_audio.c:531
#3  0x00007fd9872eb464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007fd989f0b9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 11 (Thread 0x7fd92288d700 (LWP 3828)):
#0  g_mutex_unlock (mutex=0x7fd8f8000990) at ././glib/gthread-posix.c:1348
#1  0x00007fd9846c492e in g_main_context_acquire (context=0x7fd8f8000990) at ././glib/gmain.c:3283
#2  0x00007fd9846c58a5 in g_main_context_iterate (context=context@entry=0x7fd8f8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3879
#3  0x00007fd9846c5b0c in g_main_context_iteration (context=0x7fd8f8000990, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#4  0x00007fd98ad3b6fb in QEventDispatcherGlib::processEvents (this=0x7fd8f80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd98ace507a in QEventLoop::exec (this=this@entry=0x7fd92288cc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007fd98ab070d3 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:507
#7  0x00007fd98ab0bd88 in QThreadPrivate::start (arg=0x5568d54469f0) at thread/qthread_unix.cpp:368
#8  0x00007fd9872eb464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fd989f0b9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 10 (Thread 0x7fd92308e700 (LWP 3827)):
#0  0x00007fd989f0256d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fd9846c59f6 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fd904002e70, timeout=<optimized out>, context=0x7fd904000990) at ././glib/gmain.c:4228
#2  g_main_context_iterate (context=context@entry=0x7fd904000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3924
#3  0x00007fd9846c5b0c in g_main_context_iteration (context=0x7fd904000990, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#4  0x00007fd98ad3b6fb in QEventDispatcherGlib::processEvents (this=0x7fd9040008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd98ace507a in QEventLoop::exec (this=this@entry=0x7fd92308dc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007fd98ab070d3 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:507
#7  0x00007fd98ab0bd88 in QThreadPrivate::start (arg=0x5568d29f34c0) at thread/qthread_unix.cpp:368
#8  0x00007fd9872eb464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fd989f0b9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 9 (Thread 0x7fd923fff700 (LWP 3824)):
#0  0x00007fd989efe5dd in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fd9812f6151 in pa_read () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-9.0.so
#2  0x00007fd98444e29e in pa_mainloop_prepare () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fd98444ed10 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fd98444edd0 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fd98445cdf9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fd981325238 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-9.0.so
#7  0x00007fd9872eb464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007fd989f0b9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 8 (Thread 0x7fd93b244700 (LWP 3819)):
#0  0x00007fd989f0256d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fd98445ceb1 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007fd98444e681 in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fd98444ed1e in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fd98444edd0 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fd98445cdf9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fd981325238 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-9.0.so
#7  0x00007fd9872eb464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007fd989f0b9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7fd94d5ca700 (LWP 3817)):
#0  0x00007fd989f0256d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fd9846c59f6 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fd944003070, timeout=<optimized out>, context=0x7fd944000990) at ././glib/gmain.c:4228
#2  g_main_context_iterate (context=context@entry=0x7fd944000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3924
#3  0x00007fd9846c5b0c in g_main_context_iteration (context=0x7fd944000990, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#4  0x00007fd98ad3b6fb in QEventDispatcherGlib::processEvents (this=0x7fd9440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd98ace507a in QEventLoop::exec (this=this@entry=0x7fd94d5c9c60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007fd98ab070d3 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:507
#7  0x00007fd98b8b25d5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fd98ab0bd88 in QThreadPrivate::start (arg=0x5568ce7c33b0) at thread/qthread_unix.cpp:368
#9  0x00007fd9872eb464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fd989f0b9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7fd94decc700 (LWP 3816)):
#0  0x00007fd9872f1538 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fd98ab0cb86 in QWaitConditionPrivate::wait_relative (time=30000, this=0x5568cf0199a0) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=30000, this=0x5568cf0199a0) at thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this@entry=0x5568ce5ae640, mutex=mutex@entry=0x5568cf2cf490, time=30000) at thread/qwaitcondition_unix.cpp:215
#4  0x00007fd98ab083a2 in QThreadPoolThread::run (this=0x5568ce5ae630) at thread/qthreadpool.cpp:133
#5  0x00007fd98ab0bd88 in QThreadPrivate::start (arg=0x5568ce5ae630) at thread/qthread_unix.cpp:368
#6  0x00007fd9872eb464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007fd989f0b9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7fd94eecd700 (LWP 3815)):
#0  0x00007fd989f0256d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fd9846c59f6 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fd948002e70, timeout=<optimized out>, context=0x7fd948000990) at ././glib/gmain.c:4228
#2  g_main_context_iterate (context=context@entry=0x7fd948000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3924
#3  0x00007fd9846c5b0c in g_main_context_iteration (context=0x7fd948000990, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#4  0x00007fd98ad3b6fb in QEventDispatcherGlib::processEvents (this=0x7fd9480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd98ace507a in QEventLoop::exec (this=this@entry=0x7fd94eeccc60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007fd98ab070d3 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:507
#7  0x00007fd98b8b25d5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fd98ab0bd88 in QThreadPrivate::start (arg=0x5568ce4ae950) at thread/qthread_unix.cpp:368
#9  0x00007fd9872eb464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fd989f0b9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7fd9533ec700 (LWP 3814)):
#0  0x00007fd989f0256d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fd95deecbd1 in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x00007fd9872eb464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#3  0x00007fd989f0b9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7fd976e6b700 (LWP 3813)):
#0  0x00007fd989f0256d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fd9846c59f6 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fd970003020, timeout=<optimized out>, context=0x7fd970000990) at ././glib/gmain.c:4228
#2  g_main_context_iterate (context=context@entry=0x7fd970000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3924
#3  0x00007fd9846c5b0c in g_main_context_iteration (context=0x7fd970000990, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#4  0x00007fd98ad3b6fb in QEventDispatcherGlib::processEvents (this=0x7fd9700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd98ace507a in QEventLoop::exec (this=this@entry=0x7fd976e6ac50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007fd98ab070d3 in QThread::exec (this=this@entry=0x7fd991ed1d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:507
#7  0x00007fd991e5c6d5 in QDBusConnectionManager::run (this=0x7fd991ed1d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#8  0x00007fd98ab0bd88 in QThreadPrivate::start (arg=0x7fd991ed1d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:368
#9  0x00007fd9872eb464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fd989f0b9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7fd97c819700 (LWP 3812)):
#0  0x00007fd989f0256d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fd987d43150 in poll (__timeout=-1, __nfds=1, __fds=0x7fd97c818b80) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x5568cd6e0fe0, cond=cond@entry=0x5568cd6e1020, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:479
#3  0x00007fd987d44ee9 in xcb_wait_for_event (c=0x5568cd6e0fe0) at ../../src/xcb_in.c:693
#4  0x00007fd97e53eb69 in QXcbEventReader::run (this=0x5568cd6eb690) at qxcbconnection.cpp:1343
#5  0x00007fd98ab0bd88 in QThreadPrivate::start (arg=0x5568cd6eb690) at thread/qthread_unix.cpp:368
#6  0x00007fd9872eb464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007fd989f0b9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7fd991df7540 (LWP 3811)):
#0  0x00007fd9872f118f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fd987d433c7 in _xcb_conn_wait (c=c@entry=0x5568cd6e0fe0, cond=cond@entry=0x7ffeda350b50, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:447
#2  0x00007fd987d44c0f in wait_for_reply (c=c@entry=0x5568cd6e0fe0, request=87648, e=e@entry=0x0) at ../../src/xcb_in.c:516
#3  0x00007fd987d44d22 in xcb_wait_for_reply (c=0x5568cd6e0fe0, request=87648, e=e@entry=0x0) at ../../src/xcb_in.c:546
#4  0x00007fd987d4c2e5 in xcb_get_input_focus_reply (c=<optimized out>, cookie=..., e=e@entry=0x0) at xproto.c:5323
#5  0x00007fd97e53dc5a in QXcbConnection::sync (this=0x5568cd6df820) at qxcbconnection.cpp:2081
#6  0x00007fd97e55c9e0 in QXcbShmImage::preparePaint (this=0x5568cf8ef2e0, region=...) at qxcbbackingstore.cpp:495
#7  0x00007fd97e55caba in QXcbBackingStore::beginPaint (this=this@entry=0x5568cdd67be0, region=...) at qxcbbackingstore.cpp:529
#8  0x00007fd98b1c7929 in QBackingStore::beginPaint (this=0x5568cf0f0e20, region=...) at painting/qbackingstore.cpp:173
#9  0x00007fd98c4c7d49 in QWidgetBackingStore::beginPaint (toCleanIsInTopLevelCoordinates=true, returnInfo=<synthetic pointer>, backingStore=<optimized out>, widget=<optimized out>, toClean=..., this=0x5568cefd9500) at kernel/qwidgetbackingstore.cpp:333
#10 QWidgetBackingStore::doSync (this=this@entry=0x5568cefd9500) at kernel/qwidgetbackingstore.cpp:1360
#11 0x00007fd98c4c80e7 in QWidgetBackingStore::sync (this=0x5568cefd9500) at kernel/qwidgetbackingstore.cpp:1179
#12 0x00007fd98c4e6f5f in QWidgetPrivate::syncBackingStore (this=0x5568cd7c0c10) at kernel/qwidget.cpp:1962
#13 0x00007fd98c4ff2a8 in QWidget::event (this=this@entry=0x5568cd7c08c0, event=event@entry=0x5568d8521aa0) at kernel/qwidget.cpp:9100
#14 0x00007fd98c5fe61b in QMainWindow::event (this=0x5568cd7c08c0, event=0x5568d8521aa0) at widgets/qmainwindow.cpp:1543
#15 0x00007fd98eb06097 in KMainWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#16 0x00007fd98eb4abb5 in KXmlGuiWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#17 0x00005568cbc342dd in MainWindow::event(QEvent*) ()
#18 0x00007fd98c4b7b2c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5568cd7c08c0, e=0x5568d8521aa0) at kernel/qapplication.cpp:3799
#19 0x00007fd98c4bf2e1 in QApplication::notify (this=0x7ffeda351890, receiver=0x5568cd7c08c0, e=0x5568d8521aa0) at kernel/qapplication.cpp:3556
#20 0x00007fd98ace7090 in QCoreApplication::notifyInternal2 (receiver=0x5568cd7c08c0, event=event@entry=0x5568d8521aa0) at kernel/qcoreapplication.cpp:988
#21 0x00007fd98ace981d in QCoreApplication::sendEvent (event=0x5568d8521aa0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#22 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x5568cd6d2100) at kernel/qcoreapplication.cpp:1649
#23 0x00007fd98ace9c88 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1503
#24 0x00007fd98ad3b2d3 in postEventSourceDispatch (s=0x5568cd70bea0) at kernel/qeventdispatcher_glib.cpp:276
#25 0x00007fd9846c57f7 in g_main_dispatch (context=0x7fd9780016f0) at ././glib/gmain.c:3203
#26 g_main_context_dispatch (context=context@entry=0x7fd9780016f0) at ././glib/gmain.c:3856
#27 0x00007fd9846c5a60 in g_main_context_iterate (context=context@entry=0x7fd9780016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3929
#28 0x00007fd9846c5b0c in g_main_context_iteration (context=0x7fd9780016f0, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#29 0x00007fd98ad3b6df in QEventDispatcherGlib::processEvents (this=0x5568cd72a580, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#30 0x00007fd98ace507a in QEventLoop::exec (this=this@entry=0x7ffeda351750, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#31 0x00007fd98aced7ec in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1261
#32 0x00005568cbc25ce0 in main ()

Reported using DrKonqi
Comment 1 farid 2016-12-10 00:40:48 UTC
This is because you have movit (gpu processing) enabled. Note that this feature is currently in beta and unstable. Try without it and also share your graphics card...
Comment 2 emohr 2018-11-10 14:21:37 UTC
Unfortunately MOVIT (GPU effects) is not stable and not ready for production use.

*** This bug has been marked as a duplicate of bug 380019 ***