https://bugs.kde.org/show_bug.cgi?id=380019

--- Comment #4 from Jakob Sinclair <sinclair.ja...@mailbox.org> ---
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 ()

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