From owner-freebsd-questions@FreeBSD.ORG Tue Jun 5 00:40:05 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 4C4001065670 for ; Tue, 5 Jun 2012 00:40:05 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from nk11p00mm-asmtp009.mac.com (nk11p00mm-asmtp009.mac.com [17.158.161.8]) by mx1.freebsd.org (Postfix) with ESMTP id 2655F8FC0C for ; Tue, 5 Jun 2012 00:40:05 +0000 (UTC) MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: text/plain; CHARSET=US-ASCII Received: from cswiger1.apple.com (unknown [17.209.4.71]) by nk11p00mm-asmtp009.mac.com (Oracle Communications Messaging Server 7u4-23.01(7.0.4.23.0) 64bit (built Aug 10 2011)) with ESMTPSA id <0M5400ES09QM4100@nk11p00mm-asmtp009.mac.com> for freebsd-questions@freebsd.org; Mon, 04 Jun 2012 23:39:59 +0000 (GMT) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.6.7580,1.0.260,0.0.0000 definitions=2012-06-04_06:2012-05-21, 2012-06-04, 1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 ipscore=0 suspectscore=0 phishscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=6.0.2-1012030000 definitions=main-1206040305 From: Chuck Swiger In-reply-to: <20120604191348.2a879b56@atomizer64> Date: Mon, 04 Jun 2012 16:39:57 -0700 Message-id: References: <20120604191348.2a879b56@atomizer64> To: Rod Person X-Mailer: Apple Mail (2.1084) Cc: "freebsd-questions@freebsd.org" Subject: Re: Strange dmesg entry, MCA X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Jun 2012 00:40:05 -0000 On Jun 4, 2012, at 4:13 PM, Rod Person wrote: > I'm seen this once or twice and it show up again today, I'm not exactly > sure what these MCA lines are telling me. Is this something to worry > about? > > fuse4bsd: version 0.3.9-pre1, FUSE ABI 7.8 > pid 90013 (cppunittester), uid 0: exited on signal 11 (core dumped) > MCA: Bank 4, Status 0x9445400000000a13 > MCA: Global Cap 0x0000000000000105, Status 0x0000000000000000 > MCA: Vendor "AuthenticAMD", ID 0x20f12, APIC ID 0 > MCA: CPU 0 COR BUSLG Responder RD Memory > MCA: Address 0x1d11afcd0 > MCA: Bank 2, Status 0xd000400000000863 > MCA: Global Cap 0x0000000000000105, Status 0x0000000000000000 > MCA: Vendor "AuthenticAMD", ID 0x20f12, APIC ID 1 > MCA: CPU 1 COR OVER BUSLG Source PREFETCH Memory Your CPUs were seeing correctible errors (probably via ECC memory or bus path); if they only happen rarely, it's probably OK to ignore them, but it's likely worth running memtest86 or prime95 overnight and seeing whether they find problems. Regards, -- -Chuck