Messages in this thread | | | Date | Thu, 23 Dec 2010 14:18:38 -0800 (PST) | From | David Rientjes <> | Subject | Re: [PATCH 1/2] mm: page allocator: Adjust the per-cpu counter threshold when memory is low |
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On Mon, 29 Nov 2010, Mel Gorman wrote:
> Andrew, this patch was a performance fix but is a report saying that it > fixes a functional regression in Fedora enough to push a patch torwards > stable even though an explanation as to *why* it fixes the problem is missing? >
We had to pull aa454840 "mm: page allocator: calculate a better estimate of NR_FREE_PAGES when memory is low and kswapd is awake" from 2.6.36 internally because tests showed that it would cause the machine to stall as the result of heavy kswapd activity. I merged it back with this fix as it is pending in the -mm tree and it solves the issue we were seeing, so I definitely think this should be pushed to -stable (and I would seriously consider it for 2.6.37 inclusion even at this late date).
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