Re: NUMA policy issues with ZONE_MOVABLE

Christoph Lameter
2007-07-25T05:05:51Z

On Wed, 25 Jul 2007, Nick Piggin wrote:

> > Doesnt this mean that ZONE_MOVABLE is incompatible with CONFIG_NUMA?
>
> I guess it has similar problems as ZONE_HIGHMEM etc. I think the
> zoned allocator and NUMA was there first, so it might be more
> correct to say that mempolicies are incompatible with them :)

Highmem is only used on i386 NUMA and works fine on NUMAQ. The current
zone types are carefully fitted to existing NUMA systems.

> But I thought you had plans to fix mempolicies to do zones better?

No sure where you got that from. I repeatedly suggested that more zones be
removed because of this one and other issues.