From: Wu Fengguang <fengguang.wu@intel.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, Rik van Riel <riel@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: Commit f50de2d38 seems to be breaking my oom killer
Date: Sun, 10 Jan 2010 22:37:45 +0800 [thread overview]
Message-ID: <20100110143745.GB14610@localhost> (raw)
In-Reply-To: <20100108130742.C138.A69D9226@jp.fujitsu.com>
> Subject: [PATCH] vmscan: kswapd don't retry balance_pgdat() if all zones are unreclaimable
>
> 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!
Reviewed-by: Wu Fengguang <fengguang.wu@intel.com>
Thanks!
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prev parent reply other threads:[~2010-01-10 14:37 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
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 [this message]
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