linux-kernel - Re: [PATCH] cgroup(fix critical bug): new handling for tasks file

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Message-Id: <20080908141635.3ce77adc.akpm@linux-foundation.org>
Date:	Mon, 8 Sep 2008 14:16:35 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Paul Menage <menage@...gle.com>
Cc:	laijs@...fujitsu.com, linux-kernel@...r.kernel.org,
	containers@...ts.linux-foundation.org
Subject: Re: [PATCH] cgroup(fix critical bug): new handling for tasks file

On Thu, 04 Sep 2008 22:34:47 -0700
Paul Menage <menage@...gle.com> wrote:

>  	npids = cgroup_task_count(cgrp);
> +	pidarray = kmalloc(npids * sizeof(pid_t), GFP_KERNEL);

kmalloc becomes more unreliable above 32 kbytes and 100% unreliable
above MAX_ORDER.

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