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SubjectRe: [PATCH] Accelerate OOM killing
On Thu, 24 Mar 2011 18:52:33 +0900
Minchan Kim <minchan.kim@gmail.com> wrote:

> When I test Andrey's problem, I saw the livelock and sysrq-t says
> there are many tasks in cond_resched after try_to_free_pages.
>
> If did_some_progress is false, cond_resched could delay oom killing so
> It might be killing another task.
>
> This patch accelerates oom killing without unnecessary giving CPU
> to another task. It could help avoding unnecessary another task killing
> and livelock situation a litte bit.
>
> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
> Cc: Andrey Vagin <avagin@openvz.org>
> Signed-off-by: Minchan Kim <minchan.kim@gmail.com>

Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>



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