[pulseaudio-discuss] pulseaudio[2127]: ratelimit.c: 128 events suppressed

[Colin Guthrie]

'Twas brillig, and Bill Cox at 11/05/10 16:02 did gyre and gimble:
> In Ubuntu Lucid, as well as Vinux, we get a ton of syslog messages
> like the one in the subject line.  At least one power-user thinks this
> is related to kernel panics, and always removes PulseAudio because of
> this error.  Here is the bug report at launchpad.net:
> 
> https://bugs.launchpad.net/ubuntu/+bug/479296
> 
> I see that it effects both karmic and lucid releases, and that the
> last log message is less than a week old, and that there is little
> progress on it so far.  It may be related to proprietary drivers.
> Does anyone here know what this error message means, and what may be
> wrong that causes it?

This error message means nothing by itself. It's just saying that we
wanted to log more but we we suppressed it because we don't want to spam
the logs. The limit is no more than 10 messages in 5 seconds.

Not all messages in the code are covered by this protection, but those
areas which are prone to looping etc. do use it.

Perhaps the wording could be better.


Interestingly I get some pretty big numbers when resuming from suspend:

May  9 11:30:39 jimmy pulseaudio[27925]: ratelimit.c: 8 events suppressed
May  9 12:29:34 jimmy pulseaudio[27925]: ratelimit.c: 3 events suppressed
May  9 17:49:26 jimmy pulseaudio[12419]: ratelimit.c: 8 events suppressed
May 10 08:36:28 jimmy pulseaudio[12419]: ratelimit.c: 23 events suppressed
May 10 09:06:22 jimmy pulseaudio[12419]: ratelimit.c: 64850 events
suppressed
May 10 10:01:09 jimmy pulseaudio[7747]: ratelimit.c: 4 events suppressed
May 10 10:01:20 jimmy pulseaudio[7747]: ratelimit.c: 1 events suppressed
May 10 11:05:50 jimmy pulseaudio[10212]: ratelimit.c: 2 events suppressed
May 10 19:55:08 jimmy pulseaudio[10212]: ratelimit.c: 344 events suppressed
May 11 08:20:14 jimmy pulseaudio[10212]: ratelimit.c: 1797 events suppressed
May 11 08:22:19 jimmy pulseaudio[10212]: ratelimit.c: 115921 events
suppressed
May 11 08:22:24 jimmy pulseaudio[10212]: ratelimit.c: 110509 events
suppressed
May 11 15:38:48 jimmy pulseaudio[7461]: ratelimit.c: 163 events suppressed


Here is the sequential list:

May 11 08:22:19 jimmy pulseaudio[10212]: module-device-restore.c: Synced.
May 11 08:22:19 jimmy pulseaudio[10212]: ratelimit.c: 115921 events
suppressed
May 11 08:22:24 jimmy pulseaudio[10212]: ratelimit.c: 110509 events
suppressed

I wonder if the sync messages are processed for when the device is
turned off or something? e.g. some kind of timing fuckup?

Will have to look at that!


Col

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Colin Guthrie
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http://colin.guthr.ie/

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