From owner-freebsd-current@FreeBSD.ORG Sun Feb 27 03:59:04 2005 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 854BC16A4CF; Sun, 27 Feb 2005 03:59:04 +0000 (GMT) Received: from canning.wemm.org (canning.wemm.org [192.203.228.65]) by mx1.FreeBSD.org (Postfix) with ESMTP id 609E743D49; Sun, 27 Feb 2005 03:59:04 +0000 (GMT) (envelope-from peter@wemm.org) Received: from fw.wemm.org (canning.wemm.org [192.203.228.65]) by canning.wemm.org (Postfix) with ESMTP id 42B422A901; Sat, 26 Feb 2005 19:59:04 -0800 (PST) (envelope-from peter@wemm.org) Received: from peter-laptop.wemm.org (dhcp54.wemm.org [10.0.0.54]) by fw.wemm.org (Postfix) with ESMTP id A72DDE2B3; Sat, 26 Feb 2005 19:59:03 -0800 (PST) (envelope-from peter@wemm.org) Received: from localhost (localhost [[UNIX: localhost]]) by peter-laptop.wemm.org (8.12.11/8.12.11) id j1R3wkDb016209; Sat, 26 Feb 2005 19:58:46 -0800 (PST) (envelope-from peter) From: Peter Wemm To: freebsd-current@freebsd.org Date: Sat, 26 Feb 2005 19:58:45 -0800 User-Agent: KMail/1.6.2 References: <42210DE2.9060903@ybb.ne.jp> In-Reply-To: <42210DE2.9060903@ybb.ne.jp> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200502261958.46361.peter@wemm.org> cc: Takeharu KATO cc: current@freebsd.org cc: freebsd-amd64@freebsd.org Subject: Re: MCE on AMD64 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Sun, 27 Feb 2005 03:59:04 -0000 On Saturday 26 February 2005 04:01 pm, Takeharu KATO wrote: > Hi > > Does anyone work on some hardware abnormaly > checking mechanism using MCE on AMD64? > If someone has this sort of patch, please > tell me where I can obtain it from. > > Regards, There is little or no MCE support in either i386 or amd64 kernels. The code in i386 has never even been tested, because CR4.MCE was never actually turned on. This would be a good project. Both i386 and amd64 could benefit from some work here. Testing it is hard though.. It might take a deliberate attempt to overheat a cpu to trigger a MCE event though... -Peter