*** This bug is a duplicate of bug 1690051 ***
https://bugs.launchpad.net/bugs/1690051
Thank you for taking the time to report this bug and helping to make
Ubuntu better. This particular bug has already been reported and is a
duplicate of bug 1690051, so it is being marked as such. Please look at
the other bug report to see if there is any missing information that you
can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report. Feel free to continue to report any other bugs you may
find.
** This bug has been marked a duplicate of bug 1690051
pulseaudio crashed with SIGSEGV in publish_service() from once_callback()
from dispatch_defer() from pa_mainloop_dispatch() from pa_mainloop_iterate()
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https://bugs.launchpad.net/bugs/1801532
Title:
pulseaudio crashing when publishing sound devices to zeroconf
Status in pulseaudio package in Ubuntu:
New
Bug description:
Ubuntu 18.04
pulseaudio crashes after 5-10 if advertising sound devices is enabled:
logs leading up to the crash:
[New Thread 0x7fffe7fff700 (LWP 9068)]
D: [pulseaudio] alsa-sink.c: Read hardware volume: front-left: 30419 / 46% /
-20.00 dB, front-right: 30419 / 46% / -20.00 dB
D: [alsa-sink-ALC887-VD Analog] alsa-sink.c: Thread starting up
I: [alsa-sink-ALC887-VD Analog] core-util.c: Failed to acquire real-time
scheduling: Permission denied
I: [alsa-sink-ALC887-VD Analog] alsa-sink.c: Starting playback.
D: [alsa-sink-ALC887-VD Analog] ratelimit.c: 27 events suppressed
D: [alsa-sink-ALC887-VD Analog] alsa-sink.c: Cutting sleep time for the
initial iterations by half.
I: [pulseaudio] core.c: default_source:
alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1.monitor ->
alsa_output.pci-0000_00_1f.3.analog-stereo.monitor
D: [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
D: [pulseaudio] module-device-restore.c: Could not set format on sink
alsa_output.pci-0000_00_1f.3.analog-stereo
D: [pulseaudio] module-suspend-on-idle.c: Sink
alsa_output.pci-0000_00_1f.3.analog-stereo becomes idle, timeout in 5 seconds.
I: [pulseaudio] core.c: default_sink:
alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1 ->
alsa_output.pci-0000_00_1f.3.analog-stereo
D: [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
I: [pulseaudio] card.c: Changed profile of card 2
"alsa_card.pci-0000_00_1f.3" to output:analog-stereo
D: [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
D: [pulseaudio] card.c: Setting card alsa_card.pci-0000_00_1f.3 profile
output:analog-stereo to availability status unknown
D: [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
D: [pulseaudio] card.c: Setting card alsa_card.pci-0000_00_1f.3 profile
output:analog-stereo+input:analog-stereo to availability status unknown
D: [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
D: [pulseaudio] module-alsa-card.c: Jack 'Front Headphone Jack' is now
unplugged
D: [pulseaudio] device-port.c: Setting port analog-output-headphones to
status no
I: [pulseaudio] core.c: default_sink:
alsa_output.pci-0000_00_1f.3.analog-stereo ->
alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1
I: [pulseaudio] core.c: default_source:
alsa_output.pci-0000_00_1f.3.analog-stereo.monitor ->
alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1.monitor
D: [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
D: [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
D: [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
D: [pulseaudio] module-switch-on-port-available.c: Trying to switch away from
port analog-output-headphones, found iec958-stereo-output
D: [pulseaudio] module-switch-on-port-available.c: Trying to switch to port
iec958-stereo-output
D: [pulseaudio] module-switch-on-port-available.c: Finding best profile for
port iec958-stereo-output, preferred = iec958-stereo
D: [pulseaudio] module-rescue-streams.c: No sink inputs to move away.
D: [alsa-sink-ALC887-VD Analog] alsa-sink.c: Cutting sleep time for the
initial iterations by half.
backtrace:
#0 0x00007fffe67c135f in publish_service (api=0x555555816b48,
service=0x5555558d00d0) at modules/module-zeroconf-publish.c:298
#1 0x00007ffff73fd548 in once_callback (m=0x555555816b48, e=0x5555558a15b0,
userdata=<optimized out>) at pulse/mainloop-api.c:45
#2 0x00007ffff740027d in dispatch_defer (m=0x555555816af0) at
pulse/mainloop.c:680
#3 pa_mainloop_dispatch (m=m@entry=0x555555816af0) at pulse/mainloop.c:889
#4 0x00007ffff74004ae in pa_mainloop_iterate (m=0x555555816af0,
block=<optimized out>, retval=0x0) at pulse/mainloop.c:929
#5 0x00007ffff7400530 in pa_mainloop_run (m=0x555555816af0,
retval=retval@entry=0x0) at pulse/mainloop.c:944
#6 0x00007ffff740e399 in thread (userdata=0x555555837a30) at
pulse/thread-mainloop.c:100
#7 0x00007ffff767e2a8 in internal_thread_func (userdata=0x555555874bf0) at
pulsecore/thread-posix.c:81
#8 0x00007ffff6b676db in start_thread (arg=0x7fffe619d700) at
pthread_create.c:463
#9 0x00007ffff60e688f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
In general the stream is pretty skippy, so I wonder if there's some sort of
periodic restarting issue happening
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