Re: [PATCH] Accelerate OOM killing
From: David Rientjes
Date: Thu Mar 24 2011 - 17:47:27 EST
On Thu, 24 Mar 2011, Minchan Kim 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@xxxxxxxxxxxxxx>
> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
> Cc: Andrey Vagin <avagin@xxxxxxxxxx>
> Signed-off-by: Minchan Kim <minchan.kim@xxxxxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/