From owner-freebsd-questions@FreeBSD.ORG Tue Aug 10 20:49:18 2010 Return-Path: Delivered-To: freebsd-questions@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F203D1065678 for ; Tue, 10 Aug 2010 20:49:18 +0000 (UTC) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (lurza.secnetix.de [IPv6:2a01:170:102f::2]) by mx1.freebsd.org (Postfix) with ESMTP id 76BDA8FC28 for ; Tue, 10 Aug 2010 20:49:18 +0000 (UTC) Received: from lurza.secnetix.de (localhost [127.0.0.1]) by lurza.secnetix.de (8.14.3/8.14.3) with ESMTP id o7AKn0RQ091432; Tue, 10 Aug 2010 22:49:15 +0200 (CEST) (envelope-from oliver.fromme@secnetix.de) Received: (from olli@localhost) by lurza.secnetix.de (8.14.3/8.14.3/Submit) id o7AKmxP1091431; Tue, 10 Aug 2010 22:48:59 +0200 (CEST) (envelope-from olli) Date: Tue, 10 Aug 2010 22:48:59 +0200 (CEST) Message-Id: <201008102048.o7AKmxP1091431@lurza.secnetix.de> From: Oliver Fromme To: freebsd-questions@FreeBSD.ORG, frank@deze.org In-Reply-To: <4C61937A.301@deze.org> X-Newsgroups: list.freebsd-questions User-Agent: tin/1.8.3-20070201 ("Scotasay") (UNIX) (FreeBSD/6.4-PRERELEASE-20080904 (i386)) MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.3.4 (lurza.secnetix.de [127.0.0.1]); Tue, 10 Aug 2010 22:49:15 +0200 (CEST) Cc: Subject: Re: MCA error X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: freebsd-questions@FreeBSD.ORG, frank@deze.org List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Aug 2010 20:49:19 -0000 Frank wrote: > The last 3 days, I'm getting this message on my (i386 based, FreeBSD 8.1 > PRERELEASE) system (frequency about 1 time per day): > > MCA: Bank 2, Status 0x940040000000017a > MCA: Global Cap 0x0000000000000104, Status 0x0000000000000000 > MCA: Vendor "AuthenticAMD", ID 0x680, APIC ID 0 > MCA: CPU 0 COR GCACHE L2 EVICT error > MCA: Address 0x5f4540 > > I have no clue what it means. Should I be worried? Yes. MCA means Machine Check Architecture. It reports an error in the hardware, in this case in the L2 cache of the processor. The word "COR" means that the error was correctable (e.g. with ECC mechanisms), so it is not fatal yet. Do you overclock that processor? Did you check that the cooling is sufficient? I.e. check the fan, remove dust etc. Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "Software gets slower faster than hardware gets faster." -- Niklaus Wirth