Re: 2.6.17-rc5-mm1

[Andy Whitcroft]

Christoph Lameter wrote:
> 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.

Ok.  Will test that when I get a minute.

-apw
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