[alsa-devel] snd_hda_intel error

[Raymond Yau]

2010/12/4 Jack Byer <ftn768 at gmail.com>

> I found this message in my system logs:
>
> Dec 04 07:25:52 [pulseaudio] alsa-util.c: snd_pcm_avail_delay()
> returned strange values: delay 0 is less than avail 8.
> Dec 04 07:25:52 [pulseaudio] alsa-util.c: Most likely this is a bug in
> the ALSA driver 'snd_hda_intel'. Please report this issue to the ALSA
> developers.
> Dec 04 07:25:52 [pulseaudio] alsa-util.c: snd_pcm_dump():
> Dec 04 07:25:52 [pulseaudio] alsa-util.c: Soft volume PCM
> Dec 04 07:25:52 [pulseaudio] alsa-util.c: Control: PCM Playback Volume
> Dec 04 07:25:52 [pulseaudio] alsa-util.c: min_dB: -51
> Dec 04 07:25:52 [pulseaudio] alsa-util.c: max_dB: 0
> Dec 04 07:25:52 [pulseaudio] alsa-util.c: resolution: 256
> Dec 04 07:25:52 [pulseaudio] alsa-util.c: Its setup is:
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   stream       : CAPTURE
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   access       : MMAP_INTERLEAVED
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   format       : S16_LE
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   subformat    : STD
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   channels     : 2
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   rate         : 44100
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   exact rate   : 44100 (44100/1)
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   msbits       : 16
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   buffer_size  : 16384
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   period_size  : 8192
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   period_time  : 185759
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   tstamp_mode  : ENABLE
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   period_step  : 1
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   avail_min    : 15502
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   period_event : 0
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   start_threshold  : -1
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   stop_threshold   :
> 4611686018427387904
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   silence_threshold: 0
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   silence_size : 0
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   boundary     :
> 4611686018427387904
> Dec 04 07:25:52 [pulseaudio] alsa-util.c: Slave: Hardware PCM card 0
> 'HDA Intel' device 0 subdevice 0
> Dec 04 07:25:52 [pulseaudio] alsa-util.c: Its setup is:
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   stream       : CAPTURE
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   access       : MMAP_INTERLEAVED
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   format       : S16_LE
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   subformat    : STD
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   channels     : 2
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   rate         : 44100
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   exact rate   : 44100 (44100/1)
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   msbits       : 16
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   buffer_size  : 16384
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   period_size  : 8192
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   period_time  : 185759
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   tstamp_mode  : ENABLE
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   period_step  : 1
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   avail_min    : 15502
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   period_event : 0
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   start_threshold  : -1
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   stop_threshold   :
> 4611686018427387904
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   silence_threshold: 0
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   silence_size : 0
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   boundary     :
> 4611686018427387904
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   appl_ptr     : 135040
> Dec 04 07:25:52 [pulseaudio] alsa-util.c:   hw_ptr       : 135040
>
> I am using the driver from the 2.6.31.1 kernel
>

http://git.alsa-project.org/?p=alsa-lib.git;a=commit;h=aba87e509898ec9ddb3e319267d7c267409ff100

Which application is recording  ?

Please provide a test case which can reproduce the problem ? (with a full
pulseaudio log )