linux-kernel - Re: [PATCH for 3.2.34] memcg: do not trigger OOM from add_to_page_cache

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Message-Id: <20121130160811.6BB25BDD@pobox.sk>
Date:	Fri, 30 Nov 2012 16:08:11 +0100
From:	"azurIt" <azurit@...ox.sk>
To:	Michal Hocko <mhocko@...e.cz>
Cc:	<linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
	cgroups mailinglist <cgroups@...r.kernel.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Johannes Weiner <hannes@...xchg.org>
Subject: Re: [PATCH for 3.2.34] memcg: do not trigger OOM from add_to_page_cache_locked

>DMA32 zone is usually fills up first 4G unless your HW remaps the rest
>of the memory above 4G or you have a numa machine and the rest of the
>memory is at other node. Could you post your memory map printed during
>the boot? (e820: BIOS-provided physical RAM map: and following lines)


Here is the full boot log:
www.watchdog.sk/lkml/kern.log


>You have mentioned that you are comounting with cpuset. If this happens
>to be a NUMA machine have you made the access to all nodes available?
>Also what does /proc/sys/vm/zone_reclaim_mode says?


Don't really know what NUMA means and which nodes are you talking about, sorry :(

# cat /proc/sys/vm/zone_reclaim_mode
cat: /proc/sys/vm/zone_reclaim_mode: No such file or directory



azur
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