Already logging to mybacktrace.txt.

Thread 2 (Thread 0x7f54e53cb740 (LWP 49781)):
warning: Section `.reg-xstate/49781' in core file too small.
#0  0x00007f54e54f6096 in epoll_wait (epfd=3, events=0x7ffc813f2890, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
        sc_ret = -4
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#1  0x00007f54e56e4c59 in ?? () from /usr/lib/spa-0.2/support/libspa-support.so
No symbol table info available.
#2  0x00007f54e56db24b in ?? () from /usr/lib/spa-0.2/support/libspa-support.so
No symbol table info available.
#3  0x00007f54e5639f31 in pw_main_loop_run () from /usr/lib/libpipewire-0.3.so.0
No symbol table info available.
#4  0x000055f75cdff2ee in ?? ()
No symbol table info available.
#5  0x00007f54e5411290 in __libc_start_call_main (main=main@entry=0x55f75cdff020, argc=argc@entry=3, argv=argv@entry=0x7ffc813f3e18) at ../sysdeps/nptl/libc_start_call_main.h:58
        self = <optimized out>
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140722476891672, 917486649442288821, 0, 140722476891704, 94520903474296, 140002603446272, -918009465170705227, -1003638899531725643}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7ffc813f3e18, 0x3}, data = {prev = 0x0, cleanup = 0x0, canceltype = -2126561768}}}
        not_first_call = <optimized out>
#6  0x00007f54e541134a in __libc_start_main_impl (main=0x55f75cdff020, argc=3, argv=0x7ffc813f3e18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc813f3e08) at ../csu/libc-start.c:381
No locals.
#7  0x000055f75cdff495 in ?? ()
No symbol table info available.

Thread 1 (Thread 0x7f54e46266c0 (LWP 49785)):
#0  0x00007f54e52f7e0c in ?? () from /usr/lib/ladspa/sc4_1882.so
No symbol table info available.
#1  0x00007f54e4b6b5f2 in ?? () from /usr/lib/pipewire-0.3/libpipewire-module-filter-chain.so
No symbol table info available.
#2  0x00007f54e56676b2 in ?? () from /usr/lib/libpipewire-0.3.so.0
No symbol table info available.
#3  0x00007f54e463374a in ?? () from /usr/lib/spa-0.2/audioconvert/libspa-audioconvert.so
No symbol table info available.
#4  0x00007f54e566cdd2 in pw_stream_trigger_process () from /usr/lib/libpipewire-0.3.so.0
No symbol table info available.
#5  0x00007f54e5667353 in ?? () from /usr/lib/libpipewire-0.3.so.0
No symbol table info available.
#6  0x00007f54e4633999 in ?? () from /usr/lib/spa-0.2/audioconvert/libspa-audioconvert.so
No symbol table info available.
#7  0x00007f54e5647a79 in ?? () from /usr/lib/libpipewire-0.3.so.0
No symbol table info available.
#8  0x00007f54e5647f57 in ?? () from /usr/lib/libpipewire-0.3.so.0
No symbol table info available.
#9  0x00007f54e56db337 in ?? () from /usr/lib/spa-0.2/support/libspa-support.so
No symbol table info available.
#10 0x00007f54e5620e87 in ?? () from /usr/lib/libpipewire-0.3.so.0
No symbol table info available.
#11 0x00007f54e54748fd in start_thread (arg=<optimized out>) at pthread_create.c:442
        ret = <optimized out>
        pd = <optimized out>
        out = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140002585634496, 917486649442419893, -128, 0, 140722476886384, 140002577244160, -1003640829695376203, -1003638948233755467}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#12 0x00007f54e54f5c74 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:100
No locals.