Re: 2.6.17-rc5-mm1

[Christoph Lameter]

On Mon, 5 Jun 2006, Martin Bligh wrote:

> No, that is the config it starts with, sorry ... that was misleading.
> It then does makeoldconfig from there:
> 
> http://test.kernel.org/abat/34624/build/dotconfig

Ok. So page migration is enabled.

> > Either what we see is due to code rearrangement or there is something wrong
> > with the fallback definitions in include/linux/swapops.h. 
> > The swapless-pm-add-r-w-migration-entries.patch also introduces Hugh's
> > reversal of the anon_vma list.
> 
> OK, are those easily separable? Sounds like one good test would be to
> force CONFIG_MIGRATION to =n, right?

CONFIG_MIGRATION off will disable the page migration stuff and make swap 
types 30 / 31 usable as before. The reversal of the order for the anon_vma 
list will be preserved.

So yes it may lead us further. If the problem persists with 
CONFIG_MIGRATION=n then the anon_vma reversal may be an issue.

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