Bug 380019

Summary: Kdenlive crashes when using "Fade from black" on an image
Product: [Applications] kdenlive Reporter: cadengamez
Component: Effects & TransitionsAssignee: Vincent PINON <vpinon>
Status: CONFIRMED ---    
Severity: normal CC: agvozdezkiy, anton.gubarkov, carana2099, cfrussen, fellcrustacean8, fritzibaby, gstengel, guido.iodice, jake850, janne.granstrom, kdebugs, kercihl, kjell.claesson, komanczal, laurent.kruger, laurent, louise9841, luca86, maizuddin35, maseta.mateus, matejm98mthw, moonwolf, neousr, null, Peter, privat, qubodup, rafael.linux.user, randal.oliveira, reasonably.selenium+bugtrack, sinclair.jakob, snd.noise, texasranger77, utybo72
Priority: NOR Flags: fritzibaby: MOVIT+
Version: 18.08.0   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Attachments: New crash information added by DrKonqi

Description cadengamez 2017-05-19 19:07:56 UTC 
Application: kdenlive (17.04.1)

Qt Version: 5.8.0
Frameworks Version: 5.34.0
Operating System: Linux 4.10.13-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
I put a "Fade from black" effect on an image (PNG, 1920x1080) and when you play the video kdenlive crashes.
- Custom settings of the application:
GPU Processing was enabled.

The crash can be reproduced every time.

NOTE: The crash reporting wizard could not submit the report, so I am doing it manually through the website. 

-- Backtrace:
Application: Kdenlive (kdenlive), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f45b4de6800 (LWP 7798))]

Thread 16 (Thread 0x7f453abfd700 (LWP 8078)):
#0  0x00007f45ab1e0756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f457db356dd in  () at /usr/lib/mlt/libmltsdl.so
#2  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f453b3fe700 (LWP 8043)):
#0  0x00007f45a4d3e6fe in pa_stream_get_state () at /usr/lib/libpulse.so.0
#1  0x00007f457d8cc541 in  () at /usr/lib/libSDL-1.2.so.0
#2  0x00007f457d8a076b in  () at /usr/lib/libSDL-1.2.so.0
#3  0x00007f457d8a8e18 in  () at /usr/lib/libSDL-1.2.so.0
#4  0x00007f457d8e9d39 in  () at /usr/lib/libSDL-1.2.so.0
#5  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f4554f91700 (LWP 8042)):
[KCrash Handler]
#6  0x00007f4580aafb84 in MltInput::set_pixel_data(unsigned char const*) () at /usr/lib/mlt/libmltopengl.so
#7  0x00007f4580aa93b1 in  () at /usr/lib/mlt/libmltopengl.so
#8  0x00007f4580aa8b3d in  () at /usr/lib/mlt/libmltopengl.so
#9  0x00007f4580aa9b08 in  () at /usr/lib/mlt/libmltopengl.so
#10 0x00007f45b3eef1e8 in mlt_frame_get_image () at /usr/lib/libmlt.so.6
#11 0x00007f45b3f051d9 in  () at /usr/lib/libmlt.so.6
#12 0x00007f45b3eef197 in mlt_frame_get_image () at /usr/lib/libmlt.so.6
#13 0x00007f45b3f0286f in  () at /usr/lib/libmlt.so.6
#14 0x0000000000759d9d in  ()
#15 0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#16 0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#17 0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f4552a48700 (LWP 8041)):
#0  0x00007f45ab1e0756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f45b3f02beb in mlt_consumer_rt_frame () at /usr/lib/libmlt.so.6
#2  0x00007f457db35b10 in  () at /usr/lib/mlt/libmltsdl.so
#3  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f45397fb700 (LWP 7890)):
#0  0x00007f45ab1e0b63 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f45adbaf4c6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f45adbaabc4 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f453bfff700 (LWP 7824)):
#0  0x00007f45ad1a467d in poll () at /usr/lib/libc.so.6
#1  0x00007f45a4fad9b6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f45a4fadacc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f45addde09b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f45add878ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f45adba9a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f455434c700 (LWP 7823)):
#0  0x00007f45ab1e0756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f45adbaf58b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f45b35ef665 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f45b35eff72 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f45559c5700 (LWP 7821)):
#0  0x00007f45a4ff31c9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f45a4face99 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007f45a4fad8db in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f45a4fadacc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f45addde09b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f45add878ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f45adba9a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f45562c6700 (LWP 7809)):
#0  0x00007f45ab1e0756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f45adbaf58b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f45b35ef665 in  () at /usr/lib/libQt5Quick.so.5
#3  0x00007f45b35eff72 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f4564d02700 (LWP 7804)):
#0  0x00007f45ad1a467d in poll () at /usr/lib/libc.so.6
#1  0x00007f45a4fad9b6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f45a4fadacc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f45addde09b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f45add878ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f45adba9a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f45af7da025 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f45659e5700 (LWP 7803)):
#0  0x00007f45ab1e0b63 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f45adbaf4c6 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f45adbaabc4 in  () at /usr/lib/libQt5Core.so.5
#3  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f45669e6700 (LWP 7802)):
#0  0x00007f45a4ff31e4 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f45a4fad1b9 in g_main_context_query () at /usr/lib/libglib-2.0.so.0
#2  0x00007f45a4fad928 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f45a4fadacc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f45addde09b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f45add878ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f45adba9a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f45af7da025 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f4571406700 (LWP 7801)):
#0  0x00007f45ad1a467d in poll () at /usr/lib/libc.so.6
#1  0x00007f45777aed51 in  () at /usr/lib/libusb-1.0.so.0
#2  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f4590cf7700 (LWP 7800)):
#0  0x00007f45a4ff31c9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f45a4fad3c4 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#2  0x00007f45a4fad954 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f45a4fadacc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f45addde09b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f45add878ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f45adba9a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f45b026a125 in  () at /usr/lib/libQt5DBus.so.5
#8  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f45992ff700 (LWP 7799)):
#0  0x00007f45ad1a467d in poll () at /usr/lib/libc.so.6
#1  0x00007f45a48f08e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f45a48f2679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f459bc85239 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f45adbae6d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f45ab1da2e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f45ad1ae54f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f45b4de6800 (LWP 7798)):
#0  0x00007f45ab1e0756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f45a48f0b57 in  () at /usr/lib/libxcb.so.1
#2  0x00007f45a48f239f in  () at /usr/lib/libxcb.so.1
#3  0x00007f45a48f24b2 in xcb_wait_for_reply () at /usr/lib/libxcb.so.1
#4  0x00007f459bc8431a in QXcbConnection::sync() () at /usr/lib/libQt5XcbQpa.so.5
#5  0x00007f459bca2d20 in  () at /usr/lib/libQt5XcbQpa.so.5
#6  0x00007f459bca2dfc in  () at /usr/lib/libQt5XcbQpa.so.5
#7  0x00007f45ae465f7b in QBackingStore::beginPaint(QRegion const&) () at /usr/lib/libQt5Gui.so.5
#8  0x00007f45aee06599 in  () at /usr/lib/libQt5Widgets.so.5
#9  0x00007f45aee06922 in  () at /usr/lib/libQt5Widgets.so.5
#10 0x00007f45aee25e7f in QWidgetPrivate::syncBackingStore() () at /usr/lib/libQt5Widgets.so.5
#11 0x00007f45aee3dda8 in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#12 0x00007f45aef3cd1b in QMainWindow::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#13 0x00007f45b241345a in KMainWindow::event(QEvent*) () at /usr/lib/libKF5XmlGui.so.5
#14 0x00007f45b2464e85 in KXmlGuiWindow::event(QEvent*) () at /usr/lib/libKF5XmlGui.so.5
#15 0x00007f45aedf634c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#16 0x00007f45aedfdb61 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#17 0x00007f45add89470 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#18 0x00007f45add8bbfd in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#19 0x00007f45addddc73 in  () at /usr/lib/libQt5Core.so.5
#20 0x00007f45a4fad7b7 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#21 0x00007f45a4fada20 in  () at /usr/lib/libglib-2.0.so.0
#22 0x00007f45a4fadacc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#23 0x00007f45addde07f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#24 0x00007f45add878ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#25 0x00007f45add8fe14 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#26 0x0000000000490eed in  ()
#27 0x00007f45ad0e2511 in __libc_start_main () at /usr/lib/libc.so.6
#28 0x00000000004915fa in _start ()

Report to https://bugs.kde.org/
Comment 1 farid 2017-05-27 04:37:46 UTC 
I am using arch and can't reproduce. Test with GPU disabled...
Comment 2 cadengamez 2017-06-05 02:31:28 UTC 
(In reply to farid from comment #1)
> I am using arch and can't reproduce. Test with GPU disabled...

For me, the crash only occurs if GPU is enabled.
Comment 3 Jakob Sinclair 2018-09-10 18:44:12 UTC 
Can reproduce this issue when GPU is enabled. Every time I add Fade from Black to a video or image it instantly crashes. I don't have debug packages on Solus so I can't provide a backtrace.
Comment 4 Jakob Sinclair 2018-09-10 18:47:03 UTC 
Version: 18.08

Actually got a backtrace here:

Application: Kdenlive (kdenlive), signal: Segmentation fault
Using host libthread_db library "/usr/lib64/libthread_db.so.1".
To enable execution of this file add
	add-auto-load-safe-path /usr/lib64/libstdc++.so.6.0.25-gdb.py
line to your configuration file "/home/jakob/.gdbinit".
To completely disable this security protection add
	set auto-load safe-path /
line to your configuration file "/home/jakob/.gdbinit".
For more information about this security protection see the
"Auto-loading safe path" section in the GDB manual.  E.g., run from the shell:
	info "(gdb)Auto-loading safe path"
[Current thread is 1 (Thread 0x7f2fc3225040 (LWP 5253))]

Thread 38 (Thread 0x7f2f1b7f8700 (LWP 5312)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x2f48954) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x2f48900, cond=0x2f48928) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x2f48928, mutex=0x2f48900) at pthread_cond_wait.c:655
#3  0x00007f2fb80317cd in  () at /usr/lib64/mlt/libmltsdl2.so
#4  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#5  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 37 (Thread 0x7f2f1bff9700 (LWP 5311)):
#0  0x00007f2fcd198d97 in getpid () at ../sysdeps/unix/syscall-template.S:60
#1  0x00007f2fc3644cbe in pa_detect_fork () at /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#2  0x00007f2fc472102e in pa_stream_writable_size () at /usr/lib/libpulse.so.0
#3  0x00007f2fa8c65875 in  () at /usr/lib/libSDL2-2.0.so.0
#4  0x00007f2fa8b7bebe in  () at /usr/lib/libSDL2-2.0.so.0
#5  0x00007f2fa8be617c in  () at /usr/lib/libSDL2-2.0.so.0
#6  0x00007f2fa8c848a9 in  () at /usr/lib/libSDL2-2.0.so.0
#7  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#8  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 36 (Thread 0x7f2f1c7fa700 (LWP 5310)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f2f40024a80) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f2f40024ae8, cond=0x7f2f40024a58) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x7f2f40024a58, mutex=0x7f2f40024ae8) at pthread_cond_wait.c:655
#3  0x00007f2f9f0ba2c6 in  () at /usr/lib/libavcodec.so.57
#4  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#5  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 35 (Thread 0x7f2f1cffb700 (LWP 5309)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f2f400248d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f2f40024938, cond=0x7f2f400248a8) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x7f2f400248a8, mutex=0x7f2f40024938) at pthread_cond_wait.c:655
#3  0x00007f2f9f0ba2c6 in  () at /usr/lib/libavcodec.so.57
#4  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#5  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 34 (Thread 0x7f2f1d7fc700 (LWP 5308)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f2f40024724) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f2f40024788, cond=0x7f2f400246f8) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x7f2f400246f8, mutex=0x7f2f40024788) at pthread_cond_wait.c:655
#3  0x00007f2f9f0ba2c6 in  () at /usr/lib/libavcodec.so.57
#4  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#5  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 33 (Thread 0x7f2f1dffd700 (LWP 5307)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f2f40024574) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f2f400245d8, cond=0x7f2f40024548) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x7f2f40024548, mutex=0x7f2f400245d8) at pthread_cond_wait.c:655
#3  0x00007f2f9f0ba2c6 in  () at /usr/lib/libavcodec.so.57
#4  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#5  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 32 (Thread 0x7f2f19f71700 (LWP 5306)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f2f400243c0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f2f40024428, cond=0x7f2f40024398) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x7f2f40024398, mutex=0x7f2f40024428) at pthread_cond_wait.c:655
#3  0x00007f2f9f0ba2c6 in  () at /usr/lib/libavcodec.so.57
#4  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#5  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 31 (Thread 0x7f2f4e7fc700 (LWP 5305)):
[KCrash Handler]
#6  0x00007f2fa88810ef in  () at /usr/lib/libswscale.so.4
#7  0x00007f2fa8831374 in  () at /usr/lib/libswscale.so.4
#8  0x00007f2fa88644c6 in  () at /usr/lib/libswscale.so.4
#9  0x00007f2fa886580d in sws_scale () at /usr/lib/libswscale.so.4
#10 0x00007f2fb00c516c in  () at /usr/lib64/mlt/libmltavformat.so
#11 0x00007f2f9c652eb2 in  () at /usr/lib64/mlt/libmltopengl.so
#12 0x00007f2f9c654e70 in  () at /usr/lib64/mlt/libmltopengl.so
#13 0x00007f2fccf04efe in mlt_frame_get_image () at /usr/lib/libmlt.so.6
#14 0x00007f2f9c682b46 in  () at /usr/lib64/mlt/libmltqt.so
#15 0x00007f2fccf04e9f in mlt_frame_get_image () at /usr/lib/libmlt.so.6
#16 0x00007f2fccf1a7a9 in  () at /usr/lib/libmlt.so.6
#17 0x00007f2fccf04e9f in mlt_frame_get_image () at /usr/lib/libmlt.so.6
#18 0x00007f2fccf17da2 in  () at /usr/lib/libmlt.so.6
#19 0x00000000006d90cd in  ()
#20 0x00007f2fcab12817 in  () at /usr/lib/libQt5Core.so.5
#21 0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#22 0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7f2f4effd700 (LWP 5304)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f2f2c045db8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f2f2c045d68, cond=0x7f2f2c045d90) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x7f2f2c045d90, mutex=0x7f2f2c045d68) at pthread_cond_wait.c:655
#3  0x00007f2fb8f972fb in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007f2fb8f97027 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#6  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7f2f19770700 (LWP 5303)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x2f4898c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x2f48990, cond=0x2f48960) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x2f48960, mutex=0x2f48990) at pthread_cond_wait.c:655
#3  0x00007f2fb8032374 in  () at /usr/lib64/mlt/libmltsdl2.so
#4  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#5  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7f2f879e2700 (LWP 5302)):
#0  0x00007f2fc3658536 in  () at /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#1  0x00007f2fc3658e3c in pa_fdsem_before_poll () at /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#2  0x00007f2fc366cf3f in  () at /usr/lib64/pulseaudio/libpulsecommon-12.2.so
#3  0x00007f2fc4719e27 in pa_mainloop_dispatch () at /usr/lib/libpulse.so.0
#4  0x00007f2fc4719f4a in pa_mainloop_iterate () at /usr/lib/libpulse.so.0
#5  0x00007f2fc4719f89 in pa_mainloop_run () at /usr/lib/libpulse.so.0
#6  0x00007f2fa8c6594f in  () at /usr/lib/libSDL2-2.0.so.0
#7  0x00007f2fa8be617c in  () at /usr/lib/libSDL2-2.0.so.0
#8  0x00007f2fa8c848a9 in  () at /usr/lib/libSDL2-2.0.so.0
#9  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#10 0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7f2f26d10700 (LWP 5294)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f2f140aa7e4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f2f140aa848, cond=0x7f2f140aa7b8) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x7f2f140aa7b8, mutex=0x7f2f140aa848) at pthread_cond_wait.c:655
#3  0x00007f2f9f0ba2c6 in  () at /usr/lib/libavcodec.so.57
#4  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#5  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7f2f27511700 (LWP 5293)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f2f140aa634) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f2f140aa698, cond=0x7f2f140aa608) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x7f2f140aa608, mutex=0x7f2f140aa698) at pthread_cond_wait.c:655
#3  0x00007f2f9f0ba2c6 in  () at /usr/lib/libavcodec.so.57
#4  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#5  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7f2f27d12700 (LWP 5292)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f2f140aa484) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f2f140aa4e8, cond=0x7f2f140aa458) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x7f2f140aa458, mutex=0x7f2f140aa4e8) at pthread_cond_wait.c:655
#3  0x00007f2f9f0ba2c6 in  () at /usr/lib/libavcodec.so.57
#4  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#5  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 24 (Thread 0x7f2f28513700 (LWP 5291)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f2f140aa2d4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f2f140aa338, cond=0x7f2f140aa2a8) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x7f2f140aa2a8, mutex=0x7f2f140aa338) at pthread_cond_wait.c:655
#3  0x00007f2f9f0ba2c6 in  () at /usr/lib/libavcodec.so.57
#4  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#5  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7f2f75c24700 (LWP 5290)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f2f140aa124) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f2f140aa188, cond=0x7f2f140aa0f8) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x7f2f140aa0f8, mutex=0x7f2f140aa188) at pthread_cond_wait.c:655
#3  0x00007f2f9f0ba2c6 in  () at /usr/lib/libavcodec.so.57
#4  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#5  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7f2f4cff9700 (LWP 5280)):
#0  0x00007f2fcd1c3534 in __GI___libc_read (fd=27, buf=0x7f2f4cff8b00, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f2fc47efb60 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f2fc47aab67 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f2fc47ab020 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f2fc47ab18c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f2fcad182eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f2fcacc52cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f2fcab08c46 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f2fcab12817 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#10 0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7f2f4d7fa700 (LWP 5279)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x35355e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x3535598, cond=0x35355c0) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x35355c0, mutex=0x3535598) at pthread_cond_wait.c:655
#3  0x00007f2fb8f972fb in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007f2fb8f97027 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#6  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f2f4dffb700 (LWP 5278)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x3568318) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x35682c8, cond=0x35682f0) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x35682f0, mutex=0x35682c8) at pthread_cond_wait.c:655
#3  0x00007f2fb8f972fb in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007f2fb8f97027 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#6  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f2f4f7fe700 (LWP 5275)):
#0  0x00007f2fcd1c7e19 in __GI___poll (fds=0x7f2f3c0049b0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f2fc47ab079 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f2fc47ab18c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f2fcad182eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f2fcacc52cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f2fcab08c46 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f2fcab12817 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#8  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f2f4ffff700 (LWP 5274)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x35883a8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x3588358, cond=0x3588380) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x3588380, mutex=0x3588358) at pthread_cond_wait.c:655
#3  0x00007f2fb8f972fb in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007f2fb8f97027 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#6  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f2f74c22700 (LWP 5273)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x2b1f258) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x2b1f208, cond=0x2b1f230) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x2b1f230, mutex=0x2b1f208) at pthread_cond_wait.c:655
#3  0x00007f2fb8f972fb in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007f2fb8f97027 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#6  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f2f75423700 (LWP 5272)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x292f838) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x292f7e8, cond=0x292f810) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x292f810, mutex=0x292f7e8) at pthread_cond_wait.c:655
#3  0x00007f2fb8f972fb in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007f2fb8f97027 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#6  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f2f777fe700 (LWP 5268)):
#0  0x00007f2fcd1c3534 in __GI___libc_read (fd=18, buf=0x7f2f777fdae0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f2fc47efb60 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f2fc47aab67 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f2fc47ab020 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f2fc47ab18c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007f2fcad182eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f2fcacc52cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007f2fcab08c46 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f2fcb937cc5 in  () at /usr/lib/libQt5Qml.so.5
#9  0x00007f2fcab12817 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#11 0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f2f77fff700 (LWP 5267)):
#0  0x00007f2fca402657 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f2f77ffebd0, expected=0, futex_word=0x1e4dc64) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  0x00007f2fca402657 in __pthread_cond_wait_common (abstime=0x7f2f77ffec90, mutex=0x1e4dc10, cond=0x1e4dc38) at pthread_cond_wait.c:533
#2  0x00007f2fca402657 in __pthread_cond_timedwait (cond=0x1e4dc38, mutex=0x1e4dc10, abstime=0x7f2f77ffec90) at pthread_cond_wait.c:667
#3  0x00007f2fcab12eac in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#4  0x00007f2fcab0ad12 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f2fcab12817 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#7  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f2f7cd5e700 (LWP 5266)):
#0  0x00007f2fc47f0ef4 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f2fc47aac19 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#2  0x00007f2fc47ab100 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f2fc47ab18c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f2fcad182eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f2fcacc52cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f2fcab08c46 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f2fcb937cc5 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007f2fcab12817 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#10 0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f2fa9ffb700 (LWP 5264)):
#0  0x00007f2fc47f0ef4 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f2fc47ab06e in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f2fc47ab18c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f2fcad182eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f2fcacc52cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f2fcab08c46 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f2fcc6044b5 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f2fcab12817 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#9  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f2faa7fc700 (LWP 5263)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x11b0dc8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x11b0d78, cond=0x11b0da0) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x11b0da0, mutex=0x11b0d78) at pthread_cond_wait.c:655
#3  0x00007f2fb8f972fb in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007f2fb8f97027 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#6  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f2faaffd700 (LWP 5262)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x11e8108) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x11e80b8, cond=0x11e80e0) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x11e80e0, mutex=0x11e80b8) at pthread_cond_wait.c:655
#3  0x00007f2fb8f972fb in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007f2fb8f97027 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#6  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f2fab7fe700 (LWP 5261)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x11e810c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x11e80b8, cond=0x11e80e0) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x11e80e0, mutex=0x11e80b8) at pthread_cond_wait.c:655
#3  0x00007f2fb8f972fb in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007f2fb8f97027 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#6  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f2fabfff700 (LWP 5260)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x11e7ff8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x11e7fa8, cond=0x11e7fd0) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x11e7fd0, mutex=0x11e7fa8) at pthread_cond_wait.c:655
#3  0x00007f2fb8f972fb in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007f2fb8f97027 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#6  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f2fb08da700 (LWP 5259)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x11e7ff8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x11e7fa8, cond=0x11e7fd0) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x11e7fd0, mutex=0x11e7fa8) at pthread_cond_wait.c:655
#3  0x00007f2fb8f972fb in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007f2fb8f97027 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#6  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f2fb10db700 (LWP 5258)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x11e7ff8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x11e7fa8, cond=0x11e7fd0) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x11e7fd0, mutex=0x11e7fa8) at pthread_cond_wait.c:655
#3  0x00007f2fb8f972fb in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007f2fb8f97027 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#6  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f2fb18dc700 (LWP 5257)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x114ed20) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x114ecd0, cond=0x114ecf8) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x114ecf8, mutex=0x114ecd0) at pthread_cond_wait.c:655
#3  0x00007f2fb8f972fb in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007f2fb8f97027 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#6  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f2fb8b23700 (LWP 5256)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x11e4d44) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x11e4cf0, cond=0x11e4d18) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x11e4d18, mutex=0x11e4cf0) at pthread_cond_wait.c:655
#3  0x00007f2fb8f972fb in  () at /usr/lib64/dri/radeonsi_dri.so
#4  0x00007f2fb8f97027 in  () at /usr/lib64/dri/radeonsi_dri.so
#5  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#6  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f2fba5fe700 (LWP 5255)):
#0  0x00007f2fcd1c7e19 in __GI___poll (fds=0x7f2fba5fdc38, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f2fc4687997 in  () at /usr/lib/libxcb.so.1
#2  0x00007f2fc468a1ca in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f2fbad81ee9 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f2fcab12817 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#6  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f2fc321e700 (LWP 5254)):
#0  0x00007f2fca4020fb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f2fca10ae70) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f2fca4020fb in __pthread_cond_wait_common (abstime=0x0, mutex=0x100b600, cond=0x7f2fca10ae48) at pthread_cond_wait.c:502
#2  0x00007f2fca4020fb in __pthread_cond_wait (cond=0x7f2fca10ae48, mutex=0x100b600) at pthread_cond_wait.c:655
#3  0x00007f2fca97e59c in std::condition_variable::wait(std::unique_lock<std::mutex>&) () at /usr/lib/libstdc++.so.6
#4  0x00007f2fc9619e07 in  () at /usr/lib/libQt5WebKit.so.5
#5  0x00007f2fc9619f49 in  () at /usr/lib/libQt5WebKit.so.5
#6  0x00007f2fca9852df in  () at /usr/lib/libstdc++.so.6
#7  0x00007f2fca3fc091 in start_thread (arg=<optimized out>) at pthread_create.c:463
#8  0x00007f2fcd1d3eff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f2fc3225040 (LWP 5253)):
#0  0x00007f2fcd1c7e19 in __GI___poll (fds=0x3f66fa0, nfds=1, timeout=26831) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f2fc47ab079 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f2fc47ab18c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f2fcad182eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f2fbae14161 in  () at /usr/lib/libQt5XcbQpa.so.5
#5  0x00007f2fcacc52cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f2fcaccd442 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00000000004a20bf in  ()
#8  0x00007f2fcd0de01b in __libc_start_main (main=0x49a970, argc=1, argv=0x7ffc578c45a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc578c4598) at ../csu/libc-start.c:308
#9  0x00000000004a2e3a in _start ()
Comment 5 farid 2018-09-11 18:32:23 UTC 
(In reply to Jakob Sinclair from comment #3)
> Can reproduce this issue when GPU is enabled. Every time I add Fade from
> Black to a video or image it instantly crashes. I don't have debug packages
> on Solus so I can't provide a backtrace.

Unfortunately MOVIT (GPU effects) is not stable and not ready for production use.
Comment 6 Vincent PINON 2018-09-11 20:38:09 UTC 
Movit's *integration in MLT* is not stable.
I believe the lib itself is quite seriously tested (at least on some configurations of graphics cards & drivers), but MLT wrapping has been mainly a one-shot sprint.
The crash backtrace confirms the error is in libmltopengl.
Can you forward the issue to MLT on github?
Comment 7 emohr 2018-11-10 14:05:35 UTC 
*** Bug 392884 has been marked as a duplicate of this bug. ***
Comment 8 emohr 2018-11-10 14:05:56 UTC 
*** Bug 384717 has been marked as a duplicate of this bug. ***
Comment 9 emohr 2018-11-10 14:06:20 UTC 
*** Bug 392213 has been marked as a duplicate of this bug. ***
Comment 10 emohr 2018-11-10 14:07:08 UTC 
*** Bug 376810 has been marked as a duplicate of this bug. ***
Comment 11 emohr 2018-11-10 14:07:48 UTC 
*** Bug 378102 has been marked as a duplicate of this bug. ***
Comment 12 emohr 2018-11-10 14:08:18 UTC 
*** Bug 392902 has been marked as a duplicate of this bug. ***
Comment 13 emohr 2018-11-10 14:12:31 UTC 
*** Bug 393712 has been marked as a duplicate of this bug. ***
Comment 14 emohr 2018-11-10 14:13:00 UTC 
*** Bug 379708 has been marked as a duplicate of this bug. ***
Comment 15 emohr 2018-11-10 14:15:10 UTC 
*** Bug 379455 has been marked as a duplicate of this bug. ***
Comment 16 emohr 2018-11-10 14:15:43 UTC 
*** Bug 379599 has been marked as a duplicate of this bug. ***
Comment 17 emohr 2018-11-10 14:16:18 UTC 
*** Bug 374131 has been marked as a duplicate of this bug. ***
Comment 18 emohr 2018-11-10 14:17:41 UTC 
*** Bug 382922 has been marked as a duplicate of this bug. ***
Comment 19 emohr 2018-11-10 14:18:22 UTC 
*** Bug 375713 has been marked as a duplicate of this bug. ***
Comment 20 emohr 2018-11-10 14:18:55 UTC 
*** Bug 382966 has been marked as a duplicate of this bug. ***
Comment 21 emohr 2018-11-10 14:19:15 UTC 
*** Bug 390906 has been marked as a duplicate of this bug. ***
Comment 22 emohr 2018-11-10 14:19:35 UTC 
*** Bug 397108 has been marked as a duplicate of this bug. ***
Comment 23 emohr 2018-11-10 14:19:56 UTC 
*** Bug 358161 has been marked as a duplicate of this bug. ***
Comment 24 emohr 2018-11-10 14:20:23 UTC 
*** Bug 361291 has been marked as a duplicate of this bug. ***
Comment 25 emohr 2018-11-10 14:20:50 UTC 
*** Bug 366441 has been marked as a duplicate of this bug. ***
Comment 26 emohr 2018-11-10 14:21:37 UTC 
*** Bug 373433 has been marked as a duplicate of this bug. ***
Comment 27 emohr 2018-11-10 14:21:58 UTC 
*** Bug 357446 has been marked as a duplicate of this bug. ***
Comment 28 emohr 2018-11-10 14:22:18 UTC 
*** Bug 366059 has been marked as a duplicate of this bug. ***
Comment 29 emohr 2018-11-10 14:22:40 UTC 
*** Bug 366591 has been marked as a duplicate of this bug. ***
Comment 30 emohr 2018-11-10 14:26:16 UTC 
*** Bug 394743 has been marked as a duplicate of this bug. ***
Comment 31 emohr 2018-11-10 14:27:05 UTC 
*** Bug 397492 has been marked as a duplicate of this bug. ***
Comment 32 emohr 2018-11-10 14:29:27 UTC 
*** Bug 385600 has been marked as a duplicate of this bug. ***
Comment 33 emohr 2018-11-10 14:30:05 UTC 
*** Bug 381946 has been marked as a duplicate of this bug. ***
Comment 34 emohr 2018-11-10 14:30:57 UTC 
*** Bug 379283 has been marked as a duplicate of this bug. ***
Comment 35 emohr 2018-11-10 14:46:29 UTC 
*** Bug 383142 has been marked as a duplicate of this bug. ***
Comment 36 emohr 2018-11-10 15:39:28 UTC 
*** Bug 380410 has been marked as a duplicate of this bug. ***
Comment 37 emohr 2018-11-10 15:41:05 UTC 
*** Bug 390037 has been marked as a duplicate of this bug. ***
Comment 38 emohr 2018-11-17 11:39:04 UTC 
*** Bug 397244 has been marked as a duplicate of this bug. ***
Comment 39 Janne Granström 2019-01-23 10:34:07 UTC 
Created attachment 117619 [details]
New crash information added by DrKonqi

kdenlive (18.04.3) using Qt 5.11.1

When i press pause (space key), the preview video stop but when i press play (space key) again, kdenlive just crash, even so the process of kdenlive and file.so keep running and i have to go kill them with ksysguard.

-- Backtrace (Reduced):
#6  0x00007ff7bb659077 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#7  0x00007ff7bb63a535 in __GI_abort () at abort.c:79
#8  0x00007ff7908c0e19 in movit::abort_gl_error(unsigned int, char const*, int) () at /usr/lib/x86_64-linux-gnu/libmovit.so.8
#9  0x00007ff7908cc4a5 in movit::EffectChain::execute_phase(movit::Phase*, std::map<movit::Phase*, unsigned int, std::less<movit::Phase*>, std::allocator<std::pair<movit::Phase* const, unsigned int> > > const&, std::vector<movit::EffectChain::DestinationTexture, std::allocator<movit::EffectChain::DestinationTexture> > const&, std::set<movit::Phase*, std::less<movit::Phase*>, std::allocator<movit::Phase*> >*) () at /usr/lib/x86_64-linux-gnu/libmovit.so.8
#10 0x00007ff7908d30e5 in movit::EffectChain::render(unsigned int, std::vector<movit::EffectChain::DestinationTexture, std::allocator<movit::EffectChain::DestinationTexture> > const&, unsigned int, unsigned int, unsigned int, unsigned int) () at /usr/lib/x86_64-linux-gnu/libmovit.so.8
Comment 40 emohr 2019-02-20 20:01:03 UTC 
Thanks for posting. A dev is working on the integration of MOVIT and GPU acceleration. But it seems not so easy to fix it. Can’t say by when he get a stable MOVIT version.
Comment 41 emohr 2019-08-04 12:15:41 UTC 
*** Bug 410568 has been marked as a duplicate of this bug. ***
Comment 42 emohr 2019-08-19 18:24:16 UTC 
*** Bug 411029 has been marked as a duplicate of this bug. ***
Comment 43 Guido 2023-09-26 12:24:34 UTC 
still have the same problem on Manjaro Linux

kdenlive 23.08.1
mlt 7.18.0
movit 1.7.1
Comment 44 Guido 2023-09-26 12:25:41 UTC 
(In reply to Guido from comment #43)
> still have the same problem on Manjaro Linux
> 
> kdenlive 23.08.1
> mlt 7.18.0
> movit 1.7.1

p.s. for me kdenlive crashes on startup, I post here because the relative bug was marked as a duplicate of this one.
Comment 45 farid 2023-09-26 12:36:29 UTC 
(In reply to Guido from comment #44)
> (In reply to Guido from comment #43)
> > still have the same problem on Manjaro Linux
> > 
> > kdenlive 23.08.1
> > mlt 7.18.0
> > movit 1.7.1
> 
> p.s. for me kdenlive crashes on startup, I post here because the relative
> bug was marked as a duplicate of this one.

Movit is experimental and will only be worked on after the Qt6 upgrade...