High load - lost network

[Mel]

On Monday 10 November 2008 15:18:40 Christer Solskogen wrote:
> Robert Huff wrote:
> > 	Have you double-checked the hardware?  (Includes the cable
> > connection.)  The "em" driver has a very good reputation and others
> > - includong myself - use it under siilar load profiles with no
> > problems.
>
> Yeah, I have. The error is replicated just by giving the machine
> something to do. It might also have something to do with the auto
> neogation and the switch.
>
> the wierd thing is that the only message in the log is:
> Nov 10 13:29:58 caius kernel: em0: link state changed to DOWN
> Nov 10 13:29:59 caius kernel: em0: link state changed to UP
> Nov 10 13:30:08 caius kernel: em0: link state changed to DOWN
> Nov 10 13:30:10 caius kernel: em0: link state changed to UP

Any shared interrupts? What does vmstat -i show under the load you describe?

-- 
Mel

Problem with today's modular software: they start with the modules
    and never get to the software part.