#0  0x00007fbee9f77227 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
  [Error: raise.c was not found in source tree]
#1  0x00007fbee9f78e8a in __GI_abort () at abort.c:89
  [Error: abort.c was not found in source tree]
#2  0x00007fbee45dcadf in pa_alsa_path_set_volume () from /tmp/apport_sandbox_PORQSw/usr/lib/pulse-7.1/modules/libalsa-util.so
#3  0x00007fbee45e99a5 in source_set_volume_cb () from /tmp/apport_sandbox_PORQSw/usr/lib/pulse-7.1/modules/libalsa-util.so
#4  0x00007fbeeb7cc113 in pa_source_process_msg () from /tmp/apport_sandbox_PORQSw/usr/lib/libpulsecore-7.1.so
#5  0x00007fbee45eab1b in source_process_msg () from /tmp/apport_sandbox_PORQSw/usr/lib/pulse-7.1/modules/libalsa-util.so
#6  0x00007fbeeb7c0c6b in set_shared_volume_within_thread () from /tmp/apport_sandbox_PORQSw/usr/lib/libpulsecore-7.1.so
#7  0x00007fbeeb7cc0f9 in pa_source_process_msg () from /tmp/apport_sandbox_PORQSw/usr/lib/libpulsecore-7.1.so
#8  0x00007fbee45eab1b in source_process_msg () from /tmp/apport_sandbox_PORQSw/usr/lib/pulse-7.1/modules/libalsa-util.so
#9  0x00007fbeeb796bf5 in asyncmsgq_read_work () from /tmp/apport_sandbox_PORQSw/usr/lib/libpulsecore-7.1.so
#10 0x00007fbeeb797549 in pa_rtpoll_run () from /tmp/apport_sandbox_PORQSw/usr/lib/libpulsecore-7.1.so
#11 0x00007fbee45eb8ea in thread_func () from /tmp/apport_sandbox_PORQSw/usr/lib/pulse-7.1/modules/libalsa-util.so
#12 0x00007fbeeb538d98 in internal_thread_func () from /tmp/apport_sandbox_PORQSw/usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-7.1.so
#13 0x00007fbeeaa2766a in start_thread (arg=0x7fbed77fc700) at pthread_create.c:333
  [Error: pthread_create.c was not found in source tree]
#14 0x00007fbeea048e4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
  [Error: clone.S was not found in source tree]