linux-kernel - Re: [RFC][PATCH] mm: Update zone->un_reclaimable in direct reclaim path

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Message-ID: <4FAD840D.9020009@gmail.com>
Date:	Fri, 11 May 2012 17:26:37 -0400
From:	KOSAKI Motohiro <kosaki.motohiro@...il.com>
To:	Aaditya Kumar <aaditya.kumar.30@...il.com>
CC:	linux-kernel@...r.kernel.org, kosaki.motohiro@...il.com,
	frank.rowand@...sony.com, tim.bird@...sony.com,
	takuzo.ohara@...sony.com, kan.iibuchi@...sony.com,
	kosaki.motohiro@...fujitsu.com
Subject: Re: [RFC][PATCH] mm: Update zone->un_reclaimable in direct reclaim
 path

(5/11/12 4:35 AM), Aaditya Kumar wrote:
> Dear All,
>
>   Commit 929bea7c714220fc76ce3f75bef9056477c28e74 seems to have broken the
>   OOM invocation during memory hot unplug in low memory conditions. This commit
>   modifies the 'un-reclaimabilty check'  for  giving up trying to
> reclaim pages in the
> direct reclaim path and invoke OOM  killer to be based on zone->unreclaimable.

Today I don't have a time and I didn't read your patch. but I would say my patch
passed my hotplug test. so can you please tell us your test case and reproducer?

I'll look into closely later.



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