Messages in this thread | | | Date | Sat, 25 Jun 2011 17:42:08 -0400 | From | Rik van Riel <> | Subject | Re: [PATCH 3/4] mm: vmscan: Evaluate the watermarks against the correct classzone |
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On 06/24/2011 10:44 AM, Mel Gorman wrote: > When deciding if kswapd is sleeping prematurely, the classzone is > taken into account but this is different to what balance_pgdat() and > the allocator are doing. Specifically, the DMA zone will be checked > based on the classzone used when waking kswapd which could be for a > GFP_KERNEL or GFP_HIGHMEM request. The lowmem reserve limit kicks in, > the watermark is not met and kswapd thinks its sleeping prematurely > keeping kswapd awake in error. > > Reported-and-tested-by: Pádraig Brady<P@draigBrady.com> > Signed-off-by: Mel Gorman<mgorman@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
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