From owner-freebsd-stable@FreeBSD.ORG Sat Nov 6 16:09:40 2010 Return-Path: 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 202DB106564A for ; Sat, 6 Nov 2010 16:09:40 +0000 (UTC) (envelope-from thomas.e.zander@googlemail.com) Received: from mail-qy0-f175.google.com (mail-qy0-f175.google.com [209.85.216.175]) by mx1.freebsd.org (Postfix) with ESMTP id C59DC8FC21 for ; Sat, 6 Nov 2010 16:09:39 +0000 (UTC) Received: by qyk7 with SMTP id 7so440527qyk.13 for ; Sat, 06 Nov 2010 09:09:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=1iZq5kC1oaqobm0eFPHjktfNXiH0HWsuf434EG8VRus=; b=v3UAOUk3NBt1cZx+pF0zcXK6CuOyI1PKiNPgIK1o578NO/cfTY98e+raLayI3CvkFg 2blAMlCbcVuVflVLaAbVNCpJICvmusRzv6avlfb6ZYh6azsh1SWhMSEEXawM2BkPw0q8 JGFk5XpdDQD0SNfgtSAN4DsSXEYWTGe6XnsY4= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=Jgcfk5oCy1PiaMOw9CpAw97cW761h7R1ahGnRz1dt1Fp4zxLV8S74x4mPm9eV+0HJ3 pLoSlXouNT1+wV6qmzB0C+LqSkglk7SmU7xL+GAWUbgp9xYR/6+TYEoK4iUma5hZhmFS ndkvprfaQh6KsnKCKmX1A8EzAZDzA5q+r+eTE= MIME-Version: 1.0 Received: by 10.224.177.142 with SMTP id bi14mr2168317qab.256.1289059779053; Sat, 06 Nov 2010 09:09:39 -0700 (PDT) Received: by 10.229.249.135 with HTTP; Sat, 6 Nov 2010 09:09:39 -0700 (PDT) In-Reply-To: <201011051721.05898.jhb@freebsd.org> References: <201011051721.05898.jhb@freebsd.org> Date: Sat, 6 Nov 2010 17:09:39 +0100 Message-ID: From: Thomas Zander To: freebsd-stable Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 06 Nov 2010 16:09:40 -0000 On Fri, Nov 5, 2010 at 22:21, John Baldwin wrote: >> 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? > > I think the EDAC register is using the registers for the QPI PCI buses. > There is a driver now to export those PCI buses to the OS in 7.x+. =A0How= ever, > someone would need to port the EDAC driver (or something similar) to work > with those devices. I see. Thanks for clarification! This means for now I have to trust the BIOS that ECC is enabled and I should see MCA reports in the dmesg output once a bit error is detected? Riggs