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Date: Fri, 8 May 2009 13:49:36 +0200
From: Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH 8/8] pagemap: export PG_hwpoison
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References: <20090508105320.316173813@intel.com> <20090508111032.121067794@intel.com>
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To: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>, LKML <linux-kernel@vger.kernel.org>, Andi Kleen <andi@firstfloor.org>, Matt Mackall <mpm@selenic.com>, KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>, linux-mm@kvack.org
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* Wu Fengguang <fengguang.wu@intel.com> wrote:

> This flag indicates a hardware detected memory corruption on the 
> page. Any future access of the page data may bring down the 
> machine.

NAK on this whole idea, it's utterly harmful. At _minimum_ 
/proc/kpageflags should be moved to /debug/vm/ to not have
any ABI bindings.

	Ingo

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