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SubjectRe: [PATCH] mm: compaction: Abort compaction if too many pages are isolated and caller is asynchronous
On Mon, Jun 06, 2011 at 02:40:25PM +0200, Andrea Arcangeli wrote:
> On Mon, Jun 06, 2011 at 11:43:45AM +0100, Mel Gorman wrote:
> > Maybe not full, but it has more PageReserved pages than anywhere else
> > and few MIGRATE_MOVABLE blocks. MIGRATE_MOVABLE gets skipped during
> > async compaction we could easily reach the end of the DMA zone quickly.
>
> Debug data has nr_isolated_file in dma zone 1 and nr_isolated_file in
> normal zone being -1.

It's exactly match with Mel's case.
Thanks for the proving, Andrea.

--
Kind regards
Minchan Kim


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