[fbsd] Re: Device polling heavy traffic

Jeremie Le Hen jeremie at le-hen.org
Sat Jan 7 04:10:02 PST 2006


> I wasn't there when the panic happened, I just noticed the load average 
> was increasing (with polling disabled); and it kept increasing until the 
> machine become unresponsive. After 1-2 minutes I observed it had 
> rebooted itself.
> Now  I have polling enabled on it, I have kernel.idle.poll set and a 
> latency of 1-5 ms inside the local network.
> But on the 3 links I have spoken of, altough they are not full I have 
> between 1-5 ms and 20-30 ms (when the number of packets passive through 
> the machine increases).

It would be worth having a kernel dump.  The steps to achieve this are
well described in these articles :
% http://www.onlamp.com/pub/a/bsd/2002/03/21/Big_Scary_Daemons.html
% http://www.onlamp.com/pub/a/bsd/2002/04/04/Big_Scary_Daemons.html

Jeremie Le Hen
< jeremie at le-hen dot org >< ttz at chchile dot org >

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