From owner-freebsd-current@FreeBSD.ORG Sun Feb 27 04:49:42 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 C9B5E16A4CE for ; Sun, 27 Feb 2005 04:49:42 +0000 (GMT) Received: from ybbsmtp05.mail.mci.yahoo.co.jp (ybbsmtp05.mail.mci.yahoo.co.jp [210.80.241.154]) by mx1.FreeBSD.org (Postfix) with SMTP id 9561143D4C for ; Sun, 27 Feb 2005 04:49:41 +0000 (GMT) (envelope-from takeharu1219@ybb.ne.jp) Received: from unknown (HELO ?192.168.1.14?) (takeharu1219@219.35.170.20 with plain) by ybbsmtp05.mail.mci.yahoo.co.jp with SMTP; 27 Feb 2005 04:49:40 -0000 X-Apparently-From: Message-ID: <42215163.1000802@ybb.ne.jp> Date: Sun, 27 Feb 2005 13:49:39 +0900 From: Takeharu KATO User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5) Gecko/20041217 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Peter Wemm References: <42210DE2.9060903@ybb.ne.jp> <200502261958.46361.peter@wemm.org> In-Reply-To: <200502261958.46361.peter@wemm.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-current@freebsd.org 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 04:49:43 -0000 Hi Thank you for your response. > 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. > Appearantly, my AMD64 box turn on MCE feature in the CPU. I will start to try to write MCE feature support functions. > 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... > Regards, -- Takeharu KATO