Re: [ck] Re: 2.6.16-ck3

[Nick Piggin]

Con Kolivas wrote:

> Ok I can't see what I'm doing wrong.
>
> here are my watermarks
>
> idx = zone_idx(z);
> ns->lowfree[idx] = z->pages_high * 3 + z->lowmem_reserve[idx];
> ns->highfree[idx] = ns->lowfree[idx] + z->pages_high;
>
> It's (3 * pages_high) +lowmem_reserve which is well in excess of the reserve 
> so I can't see any problem. Am I missing something?

That zone->lowmem_reserve[zone_idx(zone)] == 0 ?

;)

lowmem_reserve could be much bigger than zone->high*3, when higher
zones are much larger.

--
SUSE Labs, Novell Inc.
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