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Date: Thu, 1 Dec 2011 13:34:51 -0800
From: Andrew Morton <akpm@linux-foundation.org>
To: Petr Holasek <pholasek@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>, linux-kernel@vger.kernel.org,
        Anton Arapov <anton@redhat.com>
Subject: Re: [PATCH RESEND] NUMA x86: add constraints check for nid
 parameters
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On Thu,  1 Dec 2011 12:45:07 +0100
Petr Holasek <pholasek@redhat.com> wrote:

> This patch adds constraints checks into __node_distance() and
> numa_set_distance() functions. If from or to parameters are
> lower than zero, it results into oops now.

Passing negative numbers into __node_distance() sounds like a bug in
the caller, and this patch will remove our means of detecting that bug.

Perhaps we need to be told more about this patch.  Is the bug
user-triggerable?  If so, how?  How was this fault triggered? 
Etcetera.