linux-kernel - Re: [PATCH RFC 3/3] proc/smaps: show amount of hwpoison pages

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Message-ID: <20120501182932.GR27374@one.firstfloor.org>
Date:	Tue, 1 May 2012 20:29:32 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Konstantin Khlebnikov <khlebnikov@...nvz.org>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH RFC 3/3] proc/smaps: show amount of hwpoison pages

On Mon, Apr 30, 2012 at 03:29:11PM +0400, Konstantin Khlebnikov wrote:
> This patch adds line "HWPoinson: <size> kB" into /proc/pid/smaps if
> CONFIG_MEMORY_FAILURE=y and some HWPoison pages were found.
> This may be useful for searching applications which use a broken memory.

Makes sense. The kernel will log the process names, but it can be useful to
look for it after the fact to get a more complete picture of the state
of the machine.

Acked-by: Andi Kleen <ak@...ux.intel.com>

-Andi
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