snd_pcm_delay in snd_usb_audio

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just subscribed to the list (I hope).


while troubleshooting a different thing in audio I stumbled across the
following and it's in the logs more than once.

what do you need from me? this is opensuse 15.1 leap.


warn:2019-07-31T19:12:58.207893+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c: Most likely this is a bug in the ALSA
driver 'snd_usb_audio'. Please report this issue to the ALSA developers.
warn:2019-07-31T19:12:58.208183+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c: snd_pcm_dump():
warn:2019-07-31T19:12:58.208473+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c: Hardware PCM card 2 'USB Audio CODEC'
device 0 subdevice 0
warn:2019-07-31T19:12:58.208760+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c: Its setup is:
warn:2019-07-31T19:12:58.209071+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   stream       : CAPTURE
warn:2019-07-31T19:12:58.209366+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   access       : MMAP_INTERLEAVED
warn:2019-07-31T19:12:58.209671+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   format       : S16_LE
warn:2019-07-31T19:12:58.209958+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   subformat    : STD
warn:2019-07-31T19:12:58.210245+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   channels     : 2
warn:2019-07-31T19:12:58.210588+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   rate         : 48000
warn:2019-07-31T19:12:58.210880+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   exact rate   : 48000 (48000/1)
warn:2019-07-31T19:12:58.211198+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   msbits       : 16
warn:2019-07-31T19:12:58.211746+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   buffer_size  : 88200
warn:2019-07-31T19:12:58.212028+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   period_size  : 44100
warn:2019-07-31T19:12:58.212261+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   period_time  : 918750
warn:2019-07-31T19:12:58.212548+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   tstamp_mode  : ENABLE
warn:2019-07-31T19:12:58.212785+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   tstamp_type  : MONOTONIC
warn:2019-07-31T19:12:58.213014+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   period_step  : 1
warn:2019-07-31T19:12:58.213238+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   avail_min    : 44100
warn:2019-07-31T19:12:58.213470+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   period_event : 0
warn:2019-07-31T19:12:58.213722+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   start_threshold  : -1
warn:2019-07-31T19:12:58.213995+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   stop_threshold   :
6206523236469964800
warn:2019-07-31T19:12:58.214465+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   silence_threshold: 0
warn:2019-07-31T19:12:58.214730+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   silence_size : 0
warn:2019-07-31T19:12:58.214971+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   boundary     : 6206523236469964800
warn:2019-07-31T19:12:58.215228+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   appl_ptr     : 45284903
warn:2019-07-31T19:12:58.215510+02:00 taplop pulseaudio[28164]:
[alsa-source-USB Audio] alsa-util.c:   hw_ptr       : 55414415
warn:2019-07-31T21:55:16.513279+02:00 taplop pulseaudio[28164]:
[alsa-sink-USB Audio] alsa-util.c: Got POLLNVAL from ALSA
warn:2019-07-31T21:55:16.513748+02:00 taplop pulseaudio[28164]:
[alsa-sink-USB Audio] alsa-util.c: Could not recover from
POLLERR|POLLNVAL|POLLHUP with snd_pcm_prepare(): No such device
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