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SubjectRe: [RFC] 2.3.39 zone balancing
Date
> 
> > doc. If you have a large number of free regular pages, and the dma
> > zone is completely exhausted, the 2.2 decision of balacing the dma
> > zone might never fetch an "yes" answer, because it is based on total
> > number of free pages, not also the per zone free pages. Right? Things
> > will get worse the more non-dma pages there are.
>
> We might not make good choices to free ISA DMA pages, you are correct yes

And given a huge enough HIGHMEM zone, we might not make good choices to free
regular memory too, right?

My patch would fix this problem. I am going to make the patch bigger to
fix kswapd too, then put it out in the next few hours.

Kanoj

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