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SubjectRe: [PATCHv24 00/16] Contiguous Memory Allocator
>> This is (yet another) update of CMA patches.
> How well CMA is supposed to work if you have mlocked processes? I've
> been testing these patches, and noticed that by creating a small mlocked
> process you start to get plenty of test_pages_isolated() failure warnings,
> and bigger allocations will always fail.

CMIIW, I think mlocked pages are never migrated. The reason is because
__isolate_lru_pages() does not isolate Unevictable pages right now.

Minchan added support to allow this but the patch was dropped.

See the discussion at :


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