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

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Message-Id: <20121205023644.18C3006B@pobox.sk>
Date:	Wed, 05 Dec 2012 02:36:44 +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

>The following should print the traces when we hand over ENOMEM to the
>caller. It should catch all charge paths (migration is not covered but
>that one is not important here). If we don't see any traces from here
>and there is still global OOM striking then there must be something else
>to trigger this.
>Could you test this with the patch which aims at fixing your deadlock,
>please? I realise that this is a production environment but I do not see
>anything relevant in the code.


Michal,

i think/hope this is what you wanted:
http://www.watchdog.sk/lkml/oom_mysqld2
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