From owner-freebsd-current@FreeBSD.ORG Tue Jul 3 09:22:49 2007 Return-Path: X-Original-To: current@freebsd.org Delivered-To: freebsd-current@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 5D9E916A468 for ; Tue, 3 Jul 2007 09:22:49 +0000 (UTC) (envelope-from alexander@leidinger.net) Received: from redbull.bpaserver.net (redbullneu.bpaserver.net [213.198.78.217]) by mx1.freebsd.org (Postfix) with ESMTP id EB97C13C45A for ; Tue, 3 Jul 2007 09:22:48 +0000 (UTC) (envelope-from alexander@leidinger.net) Received: from outgoing.leidinger.net (p54A5516B.dip.t-dialin.net [84.165.81.107]) by redbull.bpaserver.net (Postfix) with ESMTP id 4F0B22E19C; Tue, 3 Jul 2007 11:22:41 +0200 (CEST) Received: from webmail.leidinger.net (webmail.Leidinger.net [192.168.1.102]) by outgoing.leidinger.net (Postfix) with ESMTP id B8D195B4A93; Tue, 3 Jul 2007 11:20:54 +0200 (CEST) Received: (from www@localhost) by webmail.leidinger.net (8.13.8/8.13.8/Submit) id l639KrVv007676; Tue, 3 Jul 2007 11:20:53 +0200 (CEST) (envelope-from Alexander@Leidinger.net) Received: from pslux.cec.eu.int (pslux.cec.eu.int [158.169.9.14]) by webmail.leidinger.net (Horde MIME library) with HTTP; Tue, 03 Jul 2007 11:20:53 +0200 Message-ID: <20070703112053.azox7spyw4oog8wk@webmail.leidinger.net> X-Priority: 3 (Normal) Date: Tue, 03 Jul 2007 11:20:53 +0200 From: Alexander Leidinger To: Chuck Swiger , stas@FreeBSD.org References: <46806B3E.2060701@FreeBSD.org> <4688EBC2.8070703@ybb.ne.jp> <27D8F2CD-156E-4962-A187-63E42CAE2B6F@FreeBSD.org> <4689295F.10109@mac.com> In-Reply-To: <4689295F.10109@mac.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; DelSp="Yes"; format="flowed" Content-Disposition: inline Content-Transfer-Encoding: quoted-printable User-Agent: Internet Messaging Program (IMP) H3 (4.1.4) / FreeBSD-7.0 X-BPAnet-MailScanner-Information: Please contact the ISP for more information X-BPAnet-MailScanner: Found to be clean X-BPAnet-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=3.996, required 8, BAYES_50 2.50, DKIM_POLICY_SIGNSOME 0.00, MIME_QP_LONG_LINE 1.40, RDNS_DYNAMIC 0.10) X-BPAnet-MailScanner-SpamScore: sss X-BPAnet-MailScanner-From: alexander@leidinger.net X-Spam-Status: No Cc: Takeharu KATO , Suleiman Souhlal , current@FreeBSD.org Subject: Re: [PATCH] Machine Check Architecture on amd64 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Jul 2007 09:22:49 -0000 Quoting Chuck Swiger (from Mon, 02 Jul 2007 12:35:43 -0400= ): > Suleiman Souhlal wrote: >> On Jul 2, 2007, at 5:12 AM, Takeharu KATO wrote: >>> Apparently, the patch does not have memory scrub facility. >>> Do you have a plan to implement the memory scrub facility like =20 >>> solaris does? >>> >>> P.S. In fact, I was also trying to implement the MCE facility, so =20 >>> I am interesting to your patch. >> >> While I don't know about Intel CPUs, K8 CPUs from AMD have a =20 >> hardware DRAM/data cache scrubber, so I didn't bother implementing =20 >> it, and I don't really plan to, at least in the near future. It =20 >> should, however, be pretty easy to implement. > > Agreed, at least some BIOSes have an advanced memory tuning page > somewhere which lets you enable or disable the BG cache memory > scrubbing on AMD64 chips. > > I'm at least as interested in getting FreeBSD-level support for loading > CPU microcode into a running system, as I've got a bunch of remote HP > or Dell PE boxes floating around in racks somewhere. Getting them to > boot into a DOS/Windows env to reflash their BIOS or update something > like a Intel or Broadcomm NIC to disable their remote management or > whatever is eating traffic to be more of a hassle than a convenience > even when one is not dealing with remote systems. less /usr/ports/sysutils/devcpu/pkg-descr Note, I'm not able to load microcode on my Athlon XP yet, Stanislav =20 would probably appreciate some help with this. Bye, Alexander. --=20 There is a vast difference between the savage and civilized man, but it is never apparent to their wives until after breakfast. =09=09-- Helen Rowland http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID =3D B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID =3D 72077137