linux-kernel - Re: [PATCH] memcg: do not expose uninitialized mem_cgroup_per

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Message-ID: <4DE6436B.3080002@redhat.com>
Date:	Wed, 01 Jun 2011 15:49:31 +0200
From:	Igor Mammedov <imammedo@...hat.com>
To:	Michal Hocko <mhocko@...e.cz>
CC:	linux-kernel@...r.kernel.org, kamezawa.hiroyu@...fujitsu.com,
	balbir@...ux.vnet.ibm.com, akpm@...ux-foundation.org,
	linux-mm@...ck.org
Subject: Re: [PATCH] memcg: do not expose uninitialized mem_cgroup_per_node
 to world

On 06/01/2011 02:39 PM, Michal Hocko wrote:
> I am not saying tha the change is bad, I like it, but I do not think it
> is a fix for potential race condition.
And yes, I agree that it is rather a workaround than real fix of race
condition which shouldn't exist in the first place. But giving my very
limited knowledge of cgroups and difficulty to reproduce the crash
after adding/enabling additional debugging, that patch is what
can fix the problem for now.
And maybe more experienced guys will look at the code and fix it
in the right way. Well at least I hope for that.
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