[alsa-devel] alsa-util.c: snd_pcm_avail() returned a value that is exceptionally large: 349696 bytes (1821 ms).

[Chris]

On Mon, 2009-12-28 at 13:14 +0800, Raymond Yau wrote:
> Do you mean that you cannot find a test case to reproduce the bug ?

Not exactly, for instance 20 seconds after freshclam ran I see this in
my syslog:

Dec 28 21:26:30 localhost pulseaudio[11266]: ratelimit.c: 52 events
suppressed
Dec 28 21:26:30 localhost pulseaudio[11266]: asyncq.c: q overrun,
queuing locally
Dec 28 21:26:30 localhost last message repeated 10 times

then this:

Dec 28 21:27:24 localhost pulseaudio[11266]: asyncq.c: q overrun,
queuing locally
Dec 28 21:27:24 localhost last message repeated 10 times
Dec 28 21:27:37 localhost pulseaudio[11266]: alsa-util.c:
snd_pcm_avail() returned a value that is exceptionally large: 839968
bytes (4761 ms).

The above is while the drive was 'thrashing' for a couple of minutes

I've also determined via experimentation that with pulseaudio running
copying a 1.2Gb file to a thumb drive takes an average of 30minutes.
This what I've done:

1. Using Gnome Commander I attempted to copy the 1.2 Gb file to a thumb
drive, after about 30 minutes I had to stop the transfer at about 35%.
2. Disabled pulseaudio in Mandriva command center, logged out and back
in again.
3. Again tried to copy the save file to the thumb drive, this time it
took about 3 minutes.
4. Re-enabled pulseaudio and again tried to copy the file, this time
using pulseaudio -k ; pulseaudio -vvvv on the command line. I saw
outputs like this:

W: asyncq.c: q overrun, queuing locally
W: asyncq.c: q overrun, queuing locally
W: asyncq.c: q overrun, queuing locally
W: asyncq.c: q overrun, queuing locally
W: asyncq.c: q overrun, queuing locally
W: asyncq.c: q overrun, queuing locally
W: asyncq.c: q overrun, queuing locally
W: asyncq.c: q overrun, queuing locally
W: asyncq.c: q overrun, queuing locally
W: asyncq.c: q overrun, queuing locally
W: asyncq.c: q overrun, queuing locally
W: ratelimit.c: 600 events suppressed

I have the complete log as a 15k bziped file. Can it be sent to the
list?

Chris

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