Re: [PATCH v4 1/3] kselftest: mm: prevent random failure of huge page split for khugepaged

[Zi Yan]

On Wed Sep 2, 2026 at 8:09 AM EDT, Yeoreum Yun wrote:
> There're some random failure for split_huge_page_test when khugepaged
> collapses pages into pmd again which had split by the test.
>
> Prevent the khugepaged's collapses for split page by setting the
> mapped pmd-huge-page with MADV_NOHUGEPAGE before split.
>
> Suggested-by: Kevin Brodsky <kevin.brodsky@xxxxxxx>
> Suggested-by: Lorenzo Stoakes (ARM) <ljs@xxxxxxxxxx>
> Signed-off-by: Yeoreum Yun <yeoreum.yun@xxxxxxx>
> ---
>  tools/testing/selftests/mm/split_huge_page_test.c | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
>
LGTM.

Reviewed-by: Zi Yan <ziy@xxxxxxxxxx>


-- 
Best Regards,
Yan, Zi