Re: [PATCH] [20/82] i386: Panic the system when a NUMA kernel doesn't run on IBM NUMA

[Andi Kleen]

>
> I agree that i386 CONFIG_NUMA is only ment to boot on small subset of
> hw but there is litte motivation to boot a numa kernel on a non-numa
> box.  I am supprised that no one has enabled i386 AMD NUMA (the one
> numa box that regular people have access to).

I never bothered because 32bit NUMA with lowmem only on node 0 
isn't very useful. Using it with 64bit makes much more sense.

> > I'm sure someone will bring up now an example where their non Summit
> > machine booted with CONFIG_NUMA, but they were just extremly lucky
> > and unlikely to be for very long.
>
> Current Summit HW  (x460) dosen't use/have a cyclone.  There are
> patches submitted to this list to support it's i386 NUMA boot.

Hmm, that's a good point. When the detection doesn't work
reliable it's no good.

Ok, Linus please don't apply that patch for now then.

-Andi
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