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SubjectRe: [PATCH v3] mm/page_owner: use kvmalloc instead of kmalloc
On Tue 30-10-18 14:55:51, Miles Chen wrote:
[...]
> It's a real problem when using page_owner.
> I found this issue recently: I'm not able to read page_owner information
> during a overnight test. (error: read failed: Out of memory). I replace
> kmalloc() with vmalloc() and it worked well.

Is this with trimming the allocation to a single page and doing shorter
than requested reads?
--
Michal Hocko
SUSE Labs

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