[Cbe-oss-dev] Current upstream crash without CONFIG_NUMA

[Benjamin Herrenschmidt]

On Mon, 2006-10-09 at 12:36 +0200, Arnd Bergmann wrote:
> On Monday 09 October 2006 12:21, Benjamin Herrenschmidt wrote:
> > 
> > > If we make the assumption that a NUMA node is exactly the same as a
> > > CBEA node (as we do in a few places), that has causes problems on
> > > older firmware that does not have the ibm,associativity properties
> > > in place. I'm not sure at what time we can deprecate those, but it
> > > sounds like a good path for the future.
> > 
> > So I drop spe's that are on a node >= MAX_NUMNODES at discovery time ?
> > 
> > I should at least add a warning tho ...
> > 
> > Is that ok ?
> 
> It's more than that. The problem is basically the same for any resources
> that are per CBE, e.g. IIC, IOMMU or the pervasive unit, so the solution
> should also use the same mechanism.

I'm tempted to define a MAX_CBE which might itself be defined based on
NUMA stuff ... might make things easier.

Ben.