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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