On 05/24/2019 09:01 PM, Suzuki K Poulose wrote:
> When we have holes in a normal memory zone, we could endup having
> cached_migrate_pfns which may not necessarily be valid, under heavy memory
> pressure with swapping enabled ( via __reset_isolation_suitable(), triggered
> by kswapd).
>
>
On Fri, May 24, 2019 at 04:31:48PM +0100, Suzuki K Poulose wrote:
> When we have holes in a normal memory zone, we could endup having
> cached_migrate_pfns which may not necessarily be valid, under heavy memory
> pressure with swapping enabled ( via __reset_isolation_suitable(), triggered
> by
When we have holes in a normal memory zone, we could endup having
cached_migrate_pfns which may not necessarily be valid, under heavy memory
pressure with swapping enabled ( via __reset_isolation_suitable(), triggered
by kswapd).
Later if we fail to find a page via fast_isolate_freepages(), we