From owner-freebsd-current@FreeBSD.ORG Fri Jan 16 19:45:51 2015 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 7197DB4F for ; Fri, 16 Jan 2015 19:45:51 +0000 (UTC) Received: from ms-10.1blu.de (ms-10.1blu.de [178.254.4.101]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 3469C760 for ; Fri, 16 Jan 2015 19:45:50 +0000 (UTC) Received: from [89.204.130.81] (helo=c720-r276659) by ms-10.1blu.de with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1YCCpx-0000ux-JR for freebsd-current@freebsd.org; Fri, 16 Jan 2015 20:45:42 +0100 Date: Fri, 16 Jan 2015 20:45:39 +0100 From: Matthias Apitz To: freebsd-current@freebsd.org Subject: kernel: MCA: CPU 0 COR (1) internal parity error Message-ID: <20150116194539.GA2230@c720-r276659> Reply-To: Matthias Apitz Mail-Followup-To: Matthias Apitz , freebsd-current@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline X-Operating-System: FreeBSD 11.0-CURRENT r269739 (i386) User-Agent: Mutt/1.5.23 (2014-03-12) X-Con-Id: 51246 X-Con-U: 0-guru X-Originating-IP: 89.204.130.81 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 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: Fri, 16 Jan 2015 19:45:51 -0000 Hello, I'm running since some days a recent -HEAD r276659 on an Acer C720 Chromebook which works very nicely and fast (I really have never seen such a fast KDE4 desktop). >From time to time (let's say 2-3 times a day) I see messages like this in /var/log/messages: Jan 16 12:04:24 c720-r276659 kernel: MCA: Bank 0, Status 0x90000040000f0005 Jan 16 12:04:24 c720-r276659 kernel: MCA: Global Cap 0x0000000000000c07, Status 0x0000000000000000 Jan 16 12:04:24 c720-r276659 kernel: MCA: Vendor "GenuineIntel", ID 0x40651, APIC ID 0 Jan 16 12:04:24 c720-r276659 kernel: MCA: CPU 0 COR (1) internal parity error the kernel is: # uname -a FreeBSD c720-r276659 11.0-CURRENT FreeBSD 11.0-CURRENT #0 r276659M: Tue Jan 6 12:55:25 CET 2015 guru@vm-poudriere-r269739:/usr/local/acerC720/obj/usr/local/acerC720/src/sys/GENERIC i386 i.e. the i386 version (because I compile everything in a VM) Are the above messages really a hardware problem? Thanks matthias -- Matthias Apitz, guru@unixarea.de, http://www.unixarea.de/ +49-170-4527211 1989-2014: The Wall was torn down so that we go to war together again. El Muro ha sido derribado para que nos unimos en ir a la guerra otra vez. Diese Grenze wurde aufgehoben damit wir gemeinsam wieder in den Krieg ziehen.