Bug 394733

Summary: Kdenlive Crashes When Blur Effect Is Added
Product: [Applications] kdenlive Reporter: Reasonably Selenium <reasonably.selenium+bugtrack>
Component: Video Effects & TransitionsAssignee: Vincent PINON <vpinon>
Status: RESOLVED DUPLICATE    
Severity: crash    
Priority: NOR    
Version: 18.04.1   
Target Milestone: ---   
Platform: Manjaro   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: Generated by the KDE Bug Assistant Software

Description Reasonably Selenium 2018-05-27 05:39:03 UTC 
Created attachment 112900 [details]
Generated by the KDE Bug Assistant Software

Application: kdenlive (18.04.1)

Qt Version: 5.10.1
Frameworks Version: 5.46.0
Operating System: Linux 4.14.40-1-MANJARO x86_64
Distribution: "Manjaro Linux"

-- Information about the crash:
- What I was doing when the application crashed:
I was trying to put a Blur Effect on one of my video clips when all of a sudden Kdenlive crashes. I've tried multiple instances of the Blur Effect and each one crashes the video editing software.

The crash can be reproduced every time.

-- Backtrace:
Application: Kdenlive (kdenlive), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f89e880f880 (LWP 3847))]

Thread 38 (Thread 0x7f89327fc700 (LWP 3925)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89a1b5117e in  () at /usr/lib/mlt/libmltsdl2.so
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 37 (Thread 0x7f893c80f700 (LWP 3924)):
#0  0x00007f89d120b7ba in  () at /usr/lib/pulseaudio/libpulsecommon-11.1.so
#1  0x00007f89d120c2cf in pa_fdsem_after_poll () at /usr/lib/pulseaudio/libpulsecommon-11.1.so
#2  0x00007f89d122445e in  () at /usr/lib/pulseaudio/libpulsecommon-11.1.so
#3  0x00007f89d7dc4ea8 in pa_mainloop_dispatch () at /usr/lib/libpulse.so.0
#4  0x00007f89d7dc5280 in pa_mainloop_iterate () at /usr/lib/libpulse.so.0
#5  0x00007f89a41362e7 in  () at /usr/lib/libSDL2-2.0.so.0
#6  0x00007f89a4091dc3 in  () at /usr/lib/libSDL2-2.0.so.0
#7  0x00007f89a40d781f in  () at /usr/lib/libSDL2-2.0.so.0
#8  0x00007f89a415738a in  () at /usr/lib/libSDL2-2.0.so.0
#9  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 36 (Thread 0x7f89497fa700 (LWP 3923)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 35 (Thread 0x7f8949ffb700 (LWP 3922)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 34 (Thread 0x7f894a7fc700 (LWP 3921)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 33 (Thread 0x7f894affd700 (LWP 3920)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 32 (Thread 0x7f894b7fe700 (LWP 3919)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 31 (Thread 0x7f894bfff700 (LWP 3918)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 30 (Thread 0x7f8932ffd700 (LWP 3917)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 29 (Thread 0x7f8979238700 (LWP 3916)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 28 (Thread 0x7f8953ff7700 (LWP 3915)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89e7af74a4 in  () at /usr/lib/libmlt.so.6
#2  0x000055c2fac328ee in  ()
#3  0x00007f89e174cabd in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 27 (Thread 0x7f8978a37700 (LWP 3914)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89a1b51cb6 in  () at /usr/lib/mlt/libmltsdl2.so
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 26 (Thread 0x7f8990158700 (LWP 3913)):
#0  0x00007f89e0cac934 in read () at /usr/lib/libc.so.6
#1  0x00007f89d12047c2 in pa_read () at /usr/lib/pulseaudio/libpulsecommon-11.1.so
#2  0x00007f89d7dc47af in pa_mainloop_prepare () at /usr/lib/libpulse.so.0
#3  0x00007f89d7dc5241 in pa_mainloop_iterate () at /usr/lib/libpulse.so.0
#4  0x00007f89d7dc5301 in pa_mainloop_run () at /usr/lib/libpulse.so.0
#5  0x00007f89a4136450 in  () at /usr/lib/libSDL2-2.0.so.0
#6  0x00007f89a40d781f in  () at /usr/lib/libSDL2-2.0.so.0
#7  0x00007f89a415738a in  () at /usr/lib/libSDL2-2.0.so.0
#8  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 25 (Thread 0x7f89337fe700 (LWP 3911)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 24 (Thread 0x7f8933fff700 (LWP 3910)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 23 (Thread 0x7f895083e700 (LWP 3909)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 22 (Thread 0x7f895103f700 (LWP 3908)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 21 (Thread 0x7f8951840700 (LWP 3907)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 20 (Thread 0x7f8952041700 (LWP 3906)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7f8952842700 (LWP 3905)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7f8953043700 (LWP 3904)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89b419f6df in  () at /usr/lib/libavutil.so.56
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f89547f8700 (LWP 3878)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89e7affa6c in  () at /usr/lib/libmlt.so.6
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f8954ff9700 (LWP 3877)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89e7affa6c in  () at /usr/lib/libmlt.so.6
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f89557fa700 (LWP 3876)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89e7affa6c in  () at /usr/lib/libmlt.so.6
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f8955ffb700 (LWP 3875)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89e7affa6c in  () at /usr/lib/libmlt.so.6
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f89567fc700 (LWP 3874)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89e7affa6c in  () at /usr/lib/libmlt.so.6
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f8956ffd700 (LWP 3873)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89e7affa6c in  () at /usr/lib/libmlt.so.6
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f89577fe700 (LWP 3872)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89e7affa6c in  () at /usr/lib/libmlt.so.6
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f8957fff700 (LWP 3871)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89e7affa6c in  () at /usr/lib/libmlt.so.6
#2  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f89837fe700 (LWP 3867)):
#0  0x00007f89e0cac934 in read () at /usr/lib/libc.so.6
#1  0x00007f89d82a0ed1 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f89d825aff8 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f89d825b4c6 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f89d825b63e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f89e1996254 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f89e193831b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f89e174771e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f89e174cabd in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f8983fff700 (LWP 3866)):
#0  0x00007f89d82a22d9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f89d825b508 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f89d825b63e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f89e1996254 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f89e193831b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f89e174771e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f89e174cabd in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f899191e700 (LWP 3858)):
#0  0x00007f89e0be6307 in __errno_location () at /usr/lib/libc.so.6
#1  0x00007f89d825b52c in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f89d825b63e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f89e1996254 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f89e193831b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f89e174771e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f89e2c02319 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f89e174cabd in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f89937d3700 (LWP 3856)):
#0  0x00007f89e1995ff2 in  () at /usr/lib/libQt5Core.so.5
#1  0x00007f89d825af22 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f89d825b4c6 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f89d825b63e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f89e1996254 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f89e193831b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f89e174771e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f89e2c02319 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f89e174cabd in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f89b6a81700 (LWP 3852)):
#0  0x00007f89e0cb0ea9 in poll () at /usr/lib/libc.so.6
#1  0x00007f89d825b523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f89d825b63e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f89e1996254 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f89e193831b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f89e174771e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f89e4553416 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f89e174cabd in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f89bd784700 (LWP 3851)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89c3651964 in  () at /usr/lib/dri/r600_dri.so
#2  0x00007f89c3651658 in  () at /usr/lib/dri/r600_dri.so
#3  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f89be2d8700 (LWP 3850)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89c3651964 in  () at /usr/lib/dri/r600_dri.so
#2  0x00007f89c3651658 in  () at /usr/lib/dri/r600_dri.so
#3  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f89ce816700 (LWP 3848)):
#0  0x00007f89ded01ffc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f89e13c8d5d in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
#2  0x00007f89e13c8d5d in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#3  0x00007f89ddd7b379 in  () at /usr/lib/libQt5WebKit.so.5
#4  0x00007f89ddd7b4c9 in  () at /usr/lib/libQt5WebKit.so.5
#5  0x00007f89e13ced3f in execute_native_thread_routine (__p=0x55c2fd0fbb90) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6  0x00007f89decfc075 in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f89e0cbb53f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f89e880f880 (LWP 3847)):
[KCrash Handler]
#6  0x00007f89e7aff421 in mlt_animation_next_key () at /usr/lib/libmlt.so.6
#7  0x00007f89e78c609b in Mlt::Animation::next_key(int) () at /usr/lib/libmlt++.so.3
#8  0x000055c2faaa4914 in  ()
#9  0x000055c2faa3d55b in  ()
#10 0x000055c2faa403dd in  ()
#11 0x000055c2faa6563d in  ()
#12 0x00007f89e3a6782e in QUndoCommand::redo() () at /usr/lib/libQt5Widgets.so.5
#13 0x00007f89e3a69b27 in QUndoStack::push(QUndoCommand*) () at /usr/lib/libQt5Widgets.so.5
#14 0x000055c2faa7c95f in  ()
#15 0x000055c2faa7cb5d in  ()
#16 0x000055c2faa41584 in  ()
#17 0x000055c2faa41981 in  ()
#18 0x00007f89e39df95c in QGraphicsItem::sceneEvent(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#19 0x00007f89e3a033d0 in  () at /usr/lib/libQt5Widgets.so.5
#20 0x00007f89e3a0341c in QGraphicsScene::dropEvent(QGraphicsSceneDragDropEvent*) () at /usr/lib/libQt5Widgets.so.5
#21 0x00007f89e3a12ea0 in QGraphicsScene::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#22 0x00007f89e36f0fec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#23 0x00007f89e36f89c6 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#24 0x00007f89e1939ce0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#25 0x00007f89e3a31d8e in QGraphicsView::dropEvent(QDropEvent*) () at /usr/lib/libQt5Widgets.so.5
#26 0x000055c2faa8cf7c in  ()
#27 0x00007f89e3731188 in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#28 0x00007f89e37d4f0f in QFrame::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#29 0x00007f89e3a3163c in QGraphicsView::viewportEvent(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#30 0x00007f89e19399ac in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#31 0x00007f89e36f0fc8 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#32 0x00007f89e36f8b45 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#33 0x00007f89e1939ce0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#34 0x00007f89e374e310 in  () at /usr/lib/libQt5Widgets.so.5
#35 0x00007f89e374f0a1 in  () at /usr/lib/libQt5Widgets.so.5
#36 0x00007f89e36f0fec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#37 0x00007f89e36f89c6 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#38 0x00007f89e1939ce0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#39 0x00007f89e1eae8ea in QGuiApplicationPrivate::processDrop(QWindow*, QMimeData const*, QPoint const&, QFlags<Qt::DropAction>) () at /usr/lib/libQt5Gui.so.5
#40 0x00007f89e1e85b91 in QWindowSystemInterface::handleDrop(QWindow*, QMimeData const*, QPoint const&, QFlags<Qt::DropAction>) () at /usr/lib/libQt5Gui.so.5
#41 0x00007f89cd7488e5 in  () at /usr/lib/libQt5XcbQpa.so.5
#42 0x00007f89cd74b22a in  () at /usr/lib/libQt5XcbQpa.so.5
#43 0x00007f89e1ea0404 in QBasicDrag::eventFilter(QObject*, QEvent*) () at /usr/lib/libQt5Gui.so.5
#44 0x00007f89e193985c in QCoreApplicationPrivate::sendThroughApplicationEventFilters(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#45 0x00007f89e36f102a in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#46 0x00007f89e36f89c6 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#47 0x00007f89e1939ce0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#48 0x00007f89e1ead434 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/libQt5Gui.so.5
#49 0x00007f89e1eaef86 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#50 0x00007f89e1e8629c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#51 0x00007f89cd7c248d in  () at /usr/lib/libQt5XcbQpa.so.5
#52 0x00007f89e193831b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#53 0x00007f89e1ea0b7c in QBasicDrag::drag(QDrag*) () at /usr/lib/libQt5Gui.so.5
#54 0x00007f89e1ec0da1 in QDragManager::drag(QDrag*) () at /usr/lib/libQt5Gui.so.5
#55 0x00007f89e1ebd519 in QDrag::exec(QFlags<Qt::DropAction>, Qt::DropAction) () at /usr/lib/libQt5Gui.so.5
#56 0x00007f89e395462f in QAbstractItemView::startDrag(QFlags<Qt::DropAction>) () at /usr/lib/libQt5Widgets.so.5
#57 0x00007f89e395328b in QAbstractItemView::mouseMoveEvent(QMouseEvent*) () at /usr/lib/libQt5Widgets.so.5
#58 0x00007f89e39be904 in QTreeView::mouseMoveEvent(QMouseEvent*) () at /usr/lib/libQt5Widgets.so.5
#59 0x00007f89e3731188 in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#60 0x00007f89e37d4f0f in QFrame::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#61 0x00007f89e3953c04 in QAbstractItemView::viewportEvent(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#62 0x00007f89e39bdf7d in QTreeView::viewportEvent(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#63 0x00007f89e19399ac in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#64 0x00007f89e36f0fc8 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#65 0x00007f89e36f8f41 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#66 0x00007f89e1939ce0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#67 0x00007f89e36f7eca in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /usr/lib/libQt5Widgets.so.5
#68 0x00007f89e374c949 in  () at /usr/lib/libQt5Widgets.so.5
#69 0x00007f89e374f060 in  () at /usr/lib/libQt5Widgets.so.5
#70 0x00007f89e36f0fec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#71 0x00007f89e36f89c6 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#72 0x00007f89e1939ce0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#73 0x00007f89e1ead434 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/libQt5Gui.so.5
#74 0x00007f89e1eaef86 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#75 0x00007f89e1e8629c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#76 0x00007f89cd7c248d in  () at /usr/lib/libQt5XcbQpa.so.5
#77 0x00007f89e193831b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#78 0x00007f89e1941718 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#79 0x000055c2fa987dd9 in  ()
#80 0x00007f89e0be606b in __libc_start_main () at /usr/lib/libc.so.6
#81 0x000055c2fa9885fa in _start ()

Report to https://bugs.kde.org/
Comment 1 Christoph Feck 2018-06-15 12:05:46 UTC 

*** This bug has been marked as a duplicate of bug 394275 ***