From: Rik van Riel <riel@redhat.com>
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Minchan Kim <minchan.kim@gmail.com>, Mel Gorman <mel@csn.ul.ie>,
Will Newton <will.newton@gmail.com>,
linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>
Subject: Re: Commit f50de2d38 seems to be breaking my oom killer
Date: Fri, 08 Jan 2010 00:10:01 -0500 [thread overview]
Message-ID: <4B46BE29.90207@redhat.com> (raw)
In-Reply-To: <20100108130742.C138.A69D9226@jp.fujitsu.com>
On 01/07/2010 11:08 PM, KOSAKI Motohiro wrote:
> Commit f50de2d3 (vmscan: have kswapd sleep for a short interval and
> double check it should be asleep) can cause kswapd to enter an infinite
> loop if running on a single-CPU system. If all zones are unreclaimble,
> sleeping_prematurely return 1 and kswapd will call balance_pgdat()
> again. but it's totally meaningless, balance_pgdat() doesn't anything
> against unreclaimable zone!
>
> Cc: Mel Gorman<mel@csn.ul.ie>
> Reported-by: Will Newton<will.newton@gmail.com>
> Signed-off-by: KOSAKI Motohiro<kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
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next prev parent reply other threads:[~2010-01-08 5:10 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-07 12:34 Commit f50de2d38 seems to be breaking my oom killer Will Newton
2010-01-07 13:58 ` Mel Gorman
2010-01-07 14:15 ` Will Newton
2010-01-07 14:49 ` Mel Gorman
2010-01-08 1:58 ` Minchan Kim
2010-01-08 2:56 ` KOSAKI Motohiro
2010-01-08 4:08 ` KOSAKI Motohiro
2010-01-08 4:53 ` Minchan Kim
2010-01-08 5:10 ` Rik van Riel [this message]
2010-01-08 9:25 ` Mel Gorman
2010-01-08 9:32 ` KOSAKI Motohiro
2010-01-08 11:18 ` Will Newton
2010-01-10 14:37 ` Wu Fengguang
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