2010/12/4 Jack Byer ftn768@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=aba87e509898ec9ddb3e3...
Which application is recording ?
Please provide a test case which can reproduce the problem ? (with a full pulseaudio log )