From owner-freebsd-stable@FreeBSD.ORG Tue Nov 29 15:50:31 2011 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 77226106566B; Tue, 29 Nov 2011 15:50:31 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id 4F2458FC08; Tue, 29 Nov 2011 15:50:31 +0000 (UTC) Received: from bigwig.baldwin.cx (bigwig.baldwin.cx [96.47.65.170]) by cyrus.watson.org (Postfix) with ESMTPSA id 034FB46B0D; Tue, 29 Nov 2011 10:50:31 -0500 (EST) Received: from jhbbsd.localnet (unknown [209.249.190.124]) by bigwig.baldwin.cx (Postfix) with ESMTPSA id 84A4CB946; Tue, 29 Nov 2011 10:50:30 -0500 (EST) From: John Baldwin To: freebsd-stable@freebsd.org Date: Tue, 29 Nov 2011 10:39:45 -0500 User-Agent: KMail/1.13.5 (FreeBSD/8.2-CBSD-20110714-p8; KDE/4.5.5; amd64; ; ) References: <20111125201331.GA2193@marvin2011.fritz.box> In-Reply-To: <20111125201331.GA2193@marvin2011.fritz.box> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Message-Id: <201111291039.45869.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.7 (bigwig.baldwin.cx); Tue, 29 Nov 2011 10:50:30 -0500 (EST) Cc: Thomas Zander , stable@freebsd.org Subject: Re: Sandy Bridge and MCA UNCOR PCC (problem + solution) 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: Tue, 29 Nov 2011 15:50:31 -0000 On Friday, November 25, 2011 3:13:31 pm Thomas Zander wrote: > List, > > here's a rant about a recent problem I had and the surprising > solution. > > I recently had to investigate weird unexpected issues on a workstation. > Relevant hardware: Asus P8B-WS, Xeon E3-1260L (Sandy Bride, Intel > HD-2000 graphics) > > Since we don't have kms and friends in STABLE yet, and I can live > without accelerated video for now, I am using the vesa driver on this > machine. FWIW, if you are having MCA errors that you strongly suspect are not valid, you can disable MCA by setting 'hw.mca.enabled=0' in the loader. -- John Baldwin