sun x4500 and smp

[Remy Nonnenmacher]

Hi Ron,

Fighted the same problem on mine. It seems to be a problem of interrupts 
dynamic routing on those old good opterons.

I fixed it by sticking all interrupts to processor 0 (cpuset -l 0 -x 
..). Since then, it works without any trouble.


On 03/16/15 21:11, rondzierwa at comcast.net wrote:
> I am using a sunfire x4500 (thumper) with a pair of dual-core opteron 290 processors, running 10.1-RELEASE to serve up zfs filesystems via nfs and samba.
>
> The system reboots periodically when under load. I cannot find anything in any of the system logs that would account for why it rebooted, it just goes away for a while and comes back in a few minutes.
>
> Out of desperation, I tried disabling all but one of the processors. (hint.lapic.x.disabled=1 where x == 1, 2 and 3). Oddly enough the system doesn't reboot anymore.
>
> Is there any known issues about SMP not working on a sunfire x4500? I have searched the mail archives and haven't found anything useful.
>
> thanks in advance for any help or suggestions.
> ron.
>
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