Re: [PATCH/RFC] Add node states sysfs class attributeS - V5

[Paul Mundt <lethal@linux-sh.org>]

On Fri, Sep 14, 2007 at 03:43:00PM +0100, Mel Gorman wrote:
> On (14/09/07 03:50), Andrew Morton didst pronounce:
> > So how do we get it tested with CONFIG_HIGHMEM=y?  Needs an i386
> > numa machine, yes?  Perhaps Andy or Martin can remember to do this
> > sometime, but they'll need a test plan ;)
> 
> As an aside, 32 Bit NUMA usually means we turn the NUMAQ into a whipping boy
> and give the problem lip service. However, I'd be interested in hearing if
> superh has dependencies on 32 bit NUMA working properly, including HIGHMEM
> issues.
> 
> I've cc'd Paul Mundt. Paul, does superh use 32 bit NUMA? Is it used with
> with HIGHMEM?
> 
We do use 32-bit NUMA, yes. Not with highmem at the moment, though.
highmem support is something that will be coming soon, so the 32-bit NUMA
+ highmem assertion will be true on SH in the not-so-distant future.

This is something that quite a few CPUs and boards are depending on, and
these are all using static sparsemem exclusively at present. It's also
something that's tested with current git on a close to daily basis,
albeit with page migration generally disabled, due to the small size of
the non-system memory nodes.

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