Re: em drv troubles

On Dec 20, 2007 3:01 AM, JoaoBR <joao_at_matik.com.br> wrote:
>
> I believe the em man page needs a revision, the tunable sections referres to
> hw.em. and should be dev.em.
>
> hw.em.tx_int.delay defaults to 64 according to the man page but my server show
> 66 as for other values too:
>
> dev.em.1.tx_int_delay: 66
> dev.em.1.rx_abs_int_delay: 66
> dev.em.1.tx_abs_int_delay: 66
>
> what is correct and how much does it matter?

Yes, the man page is way out of date, I will try and get
our docs group to make up something soon.

>
> I get sporadic freezes, sometimes after an hour and sometimes after some days
> of uptime,  with no log and rare times a panic which then point to em in the
> kernel but can not get a core dump, seems the machine freezes before the
> panic msg ends
>
> I run amd64 with opterons and tyan MBs, to check if this has something to do I
> could repeat the problem on AM2 X2 MB with Sata disk but same nics and low
> traffic (1-2MB/s).
>
> somebody has an idea here?

Build in the debugger and see if you can get a stack trace at least?

On vacation a couple weeks, I'll still be lurking but trying to relax :)

Jack