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SubjectRe: [PATCH] Check PageActive when evictable page and unevicetable page race happen
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On Sun, Apr 24, 2011 at 9:25 AM, Minchan Kim <minchan.kim@gmail.com> wrote:
> In putback_lru_page, unevictable page can be changed into evictable
> 's one while we move it among lru. So we have checked it again and
> rescued it. But we don't check PageActive, again. It could add
> active page into inactive list so we can see the BUG in isolate_lru_pages.
> (But I didn't see any report because I think it's very subtle)
>
> It could happen in race that zap_pte_range's mark_page_accessed and
> putback_lru_page. It's subtle but could be possible.

Please Ignore this. I was confused.
The race never happens.


--
Kind regards,
Minchan Kim


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