From owner-freebsd-current@FreeBSD.ORG Wed Nov 11 20:05:20 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A6E451065694 for ; Wed, 11 Nov 2009 20:05:20 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id 77B568FC26 for ; Wed, 11 Nov 2009 20:05:20 +0000 (UTC) Received: from bigwig.baldwin.cx (66.111.2.69.static.nyinternet.net [66.111.2.69]) by cyrus.watson.org (Postfix) with ESMTPSA id 2A1CE46B2A; Wed, 11 Nov 2009 15:05:20 -0500 (EST) Received: from jhbbsd.hudson-trading.com (unknown [209.249.190.8]) by bigwig.baldwin.cx (Postfix) with ESMTPA id 64D998A01B; Wed, 11 Nov 2009 15:05:19 -0500 (EST) From: John Baldwin To: freebsd-current@freebsd.org Date: Wed, 11 Nov 2009 15:04:14 -0500 User-Agent: KMail/1.9.7 References: <1031257439203@webmail57.yandex.ru> <941257966918@webmail42.yandex.ru> In-Reply-To: <941257966918@webmail42.yandex.ru> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200911111504.14906.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.0.1 (bigwig.baldwin.cx); Wed, 11 Nov 2009 15:05:19 -0500 (EST) X-Virus-Scanned: clamav-milter 0.95.1 at bigwig.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.5 required=4.2 tests=AWL,BAYES_00,RDNS_NONE autolearn=no version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on bigwig.baldwin.cx Cc: "S.N.Grigoriev" , Mark Atkinson Subject: Re: 8.0RC2 amd64 - kernel panic running make buildworld X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Wed, 11 Nov 2009 20:05:20 -0000 On Wednesday 11 November 2009 2:15:18 pm S.N.Grigoriev wrote: > > 10.11.09, 09:15, "Mark Atkinson" > wrote: > > > Andriy Gapon wrote: > > > on 10/11/2009 17:22 gary.jennejohn@freenet.de said the following: > > >> Well, OK, I may have misinterpreted what you wrote or have chosen bad > > >> wording myself to convey the same message. Nonetheless it looks like > > >> a hardware problem to me. > > > > > > [Trying to make up for my previous mistake.] > > > > > > The symptom certainly looks like misbehaving hardware, but other information from > > > the reports seems to suggest that it is possible that this misbehavior might be > > > caused by software misconfiguring the hardware. > > > > > > I would re-test vm.pmap.pg_ps_enabled=0 just to be sure that it was correctly teh > > > first time. > > > I would try to see how 8.0-RC1 kernel behaves and in general try to find last > > > working, first non-working version. > > > It would be useful to know any (if any) non-default loader.conf and rc.conf > > > settings or kernel config (if not GENERIC). > > > > > > Not a trivial issue unless it is hardware indeed. > > > > > Also, you can try adding: > > hw.mca.enabled="1" in /boot/loader.conf, reboot, and then see if there > > is a machine check exception on the console during the buildworld. > > Mark, > > I've added hw.mca.enabled="1" in /boot/loader.conf and got the following > screen during the buildworld: > > ..... > -c /usr/src/gnu/usr.bin/binutils/as/../../../../contrib/binutils/gas/sb.c > > MCA: CPU3 UNCOR PCC OVER DTLIB L1 error > MCA: Address 0x8015fb000 You hardware is broken and it is telling you so. You have had multiple machine checks with the most severe one being an uncorrectable error in your data TLB (i.e. in the CPU itself). -- John Baldwin