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

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Message-Id: <20121230020947.AA002F34@pobox.sk>
Date:	Sun, 30 Dec 2012 02:09:47 +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

>which suggests that the patch is incomplete and that I am blind :/
>mem_cgroup_cache_charge calls __mem_cgroup_try_charge for the page cache
>and that one doesn't check GFP_MEMCG_NO_OOM. So you need the following
>follow-up patch on top of the one you already have (which should catch
>all the remaining cases).
>Sorry about that...


This was, again, killing my MySQL server (search for "(mysqld)"):
http://www.watchdog.sk/lkml/oom_mysqld5
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