From owner-freebsd-current@FreeBSD.ORG Tue Jan 6 21:43:03 2004 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 D6AE016A4CE; Tue, 6 Jan 2004 21:43:03 -0800 (PST) Received: from smtp1.adl2.internode.on.net (smtp1.adl2.internode.on.net [203.16.214.181]) by mx1.FreeBSD.org (Postfix) with ESMTP id EE90243D58; Tue, 6 Jan 2004 21:43:01 -0800 (PST) (envelope-from doconnor@gsoft.com.au) Received: from midget.dons.net.au (ppp108-195.lns1.adl1.internode.on.net [150.101.108.195])i075h0Rp074405; Wed, 7 Jan 2004 16:13:00 +1030 (CST) Received: from chowder.gsoft.com.au (root@localhost.dons.net.au [127.0.0.1]) by midget.dons.net.au (8.12.9/8.12.9) with ESMTP id i075gwaW090359; Wed, 7 Jan 2004 16:12:59 +1030 (CST) (envelope-from doconnor@gsoft.com.au) From: "Daniel O'Connor" To: Don Lewis Date: Wed, 7 Jan 2004 16:12:57 +1030 User-Agent: KMail/1.5.4 References: <200401070514.i075E87E015640@gw.catspoiler.org> In-Reply-To: <200401070514.i075E87E015640@gw.catspoiler.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200401071612.57398.doconnor@gsoft.com.au> X-Spam-Score: -5.3 () IN_REP_TO,QUOTED_EMAIL_TEXT,REFERENCES,SIGNATURE_SHORT_DENSE,SPAM_PHRASE_01_02,USER_AGENT,USER_AGENT_KMAIL X-Scanned-By: MIMEDefang 2.26 (www . roaringpenguin . com / mimedefang) cc: freebsd-current@FreeBSD.org cc: yurtesen@ispro.net.tr Subject: Re: FreeBSD Crashes with AMD 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: Wed, 07 Jan 2004 05:43:04 -0000 On Wednesday 07 January 2004 15:44, Don Lewis wrote: > > You could alter loader.conf to run the command, then have the loader > > alter it back just before running the memory test (once around then > > reboot) > > memtest86 takes quite a while to run it's full suite of tests, and some > of the memory errors that I have encountered were only found by some of > the longer pattern-sensitivity tests. Yeah I know, but I still believe it's would be a useful feature. Especially if your remote server starts playing up, or you have a farm of machines. > It would be better to just use ECC RAM and watch for ECC errors. > Unfortunately FreeBSD is missing the code to do the latter. It sounds > like recent versions of Linux have something called MCE which handles > this. There is some code floating around which does this actually.. Not sure how up to date it is though. ECC RAM is nice, but it is considerably more expensive (especially when you consider you need to buy 'server' motherboards to use it), and it can get undetectable faults too :) -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 9A8C 569F 685A D928 5140 AE4B 319B 41F4 5D17 FDD5