Re: ~500 megs cached yet 2.6.5 goes into swap hell

[William Lee Irwin III]

At some point in the past, I wrote:
>> The really strange thing is that the behaviour seems to get worse the
>> more RAM you have.  I haven't noticed any problem at all on my laptop
>> with 768MB, only on the G5, which has 2.5GB.  (The laptop is still on
>> 2.6.2-rc3 though, so I will try a newer kernel on it.)

On Thu, Apr 29, 2004 at 04:12:38PM +1000, Benjamin Herrenschmidt wrote:
> Your G5 also has a 2Gb IO hole in the middle of zone DMA, it's possible
> that the accounting doesn't work properly.

Hmm, ->present_pages vs. ->spanned_pages distinction(s) should cover
this, or should have at one point. How are those being set at the moment?


-- wli
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