Re: 2.6.17-rc5-mm1

[Christoph Lameter]

On Mon, 5 Jun 2006, Arjan van de Ven wrote:

> > Swap migration uses the two higest numbers of swap types (30 and 31). If 
> > those are generated by something then we could have trouble but I do not 
> > see how the patches could hurt otherwise.
> ltp has many weird swap tests
> 
> (and I assume you're not talking about the pte's that are swapped, but
> only the file type in the swap signature; since the higher bits in the
> pte are used by the non-linear vma feature afaik)

How was the kernel compiled? It must have been running on a NUMA system 
for page migration to be enabled. Otherwise the fallback definitions in 
include/linux/swapops.h should remove all the swap migration entry 
handling.
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