From owner-freebsd-stable@FreeBSD.ORG  Fri Nov  5 20:25:51 2010
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id AB3EE10656AB
	for <freebsd-stable@freebsd.org>; Fri,  5 Nov 2010 20:25:51 +0000 (UTC)
	(envelope-from cpghost@cordula.ws)
Received: from mail-qw0-f54.google.com (mail-qw0-f54.google.com
	[209.85.216.54])
	by mx1.freebsd.org (Postfix) with ESMTP id 698718FC1B
	for <freebsd-stable@freebsd.org>; Fri,  5 Nov 2010 20:25:51 +0000 (UTC)
Received: by qwg8 with SMTP id 8so2804506qwg.13
	for <freebsd-stable@freebsd.org>; Fri, 05 Nov 2010 13:25:50 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.229.192.76 with SMTP id dp12mr2375993qcb.63.1288986856607;
	Fri, 05 Nov 2010 12:54:16 -0700 (PDT)
Received: by 10.229.235.67 with HTTP; Fri, 5 Nov 2010 12:54:16 -0700 (PDT)
X-Originating-IP: [93.203.53.2]
In-Reply-To: <AANLkTiktf5Ls1RRLgUcu2MpK8ymKaDBf=qp+iGAp2fx2@mail.gmail.com>
References: <AANLkTiktf5Ls1RRLgUcu2MpK8ymKaDBf=qp+iGAp2fx2@mail.gmail.com>
Date: Fri, 5 Nov 2010 20:54:16 +0100
Message-ID: <AANLkTikmLtXBiAoMsPWmDm=JQ7jBrO7VLeGMuBnobf7z@mail.gmail.com>
From: "C. P. Ghost" <cpghost@cordula.ws>
To: Thomas Zander <thomas.e.zander@googlemail.com>
Content-Type: text/plain; charset=ISO-8859-1
Cc: freebsd-stable <freebsd-stable@freebsd.org>
Subject: Re: How to tell whether ECC (memory) is enabled?
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>, 
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 05 Nov 2010 20:25:51 -0000

On Fri, Nov 5, 2010 at 5:09 PM, Thomas Zander
<thomas.e.zander@googlemail.com> wrote:
> Dear,
>
> is there any way to inspect a running STABLE machine for the presence
> or state of ECC memory before an MCA "error detected" message actually
> occurs?
> In comparison when I quickly boot the machine in question with a Linux
> live CD, I find (among other EDAC messages) the following output in
> its dmesg:
>
> ...
> EDAC amd64: ECC is enabled by BIOS, Proceeding with EDAC module initialization
> ...
>
> During POST, die BIOS also tells me that ECC memory is installed, so
> far so good. But I was a little surprised that the FreeBSD kernel
> tells me absolutely nothing about it. Or do I have to tune loader.conf
> variables?

Have you tried 'dmidecode' (as run), from the port sysutils/dmidecode?

> TIA,
> Riggs

-cpghost.

-- 
Cordula's Web. http://www.cordula.ws/