From owner-freebsd-questions@FreeBSD.ORG Wed Jul 11 23:11:04 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org 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 D64C216A421 for ; Wed, 11 Jul 2007 23:11:04 +0000 (UTC) (envelope-from feargal@fbi.ie) Received: from mail00.svc.cra.dublin.eircom.net (mail00.svc.cra.dublin.eircom.net [159.134.118.16]) by mx1.freebsd.org (Postfix) with SMTP id 7639C13C45B for ; Wed, 11 Jul 2007 23:11:04 +0000 (UTC) (envelope-from feargal@fbi.ie) Received: (qmail 70091 messnum 6425338 invoked from network[82.141.233.46/unknown]); 11 Jul 2007 23:11:03 -0000 Received: from unknown (HELO alatar.edhellond.fbi.ie) (82.141.233.46) by mail00.svc.cra.dublin.eircom.net (qp 70091) with SMTP; 11 Jul 2007 23:11:03 -0000 Received: from mablung.edhellond.fbi.ie (mablung.edhellond.fbi.ie [192.168.0.14]) by alatar.edhellond.fbi.ie (8.13.1/8.13.1) with ESMTP id l6BNAri1073995; Wed, 11 Jul 2007 23:10:58 GMT (envelope-from feargal@fbi.ie) Date: Thu, 12 Jul 2007 00:10:52 +0100 From: Feargal Reilly To: NetOpsCenter Message-ID: <20070712001052.6fd1c78b@mablung.edhellond.fbi.ie> In-Reply-To: <4695148A.9010200@hdk5.net> References: <20070711182300.4634e278@mablung.edhellond.fbi.ie> <4695148A.9010200@hdk5.net> Organization: FBI X-Mailer: Claws Mail 2.9.1 (GTK+ 2.10.11; i386-portbld-freebsd5.4) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: FreeBSD Mailing List Subject: Re: Complete hang during boot at boot2 prompt 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: Wed, 11 Jul 2007 23:11:04 -0000 On Wed, 11 Jul 2007 07:34:02 -1000 NetOpsCenter wrote: > Feargal Reilly wrote: > > >Hi, > > > >There, I yanked a memory module, and it booted fine, albeit > >complaining about the degraded RAID array. However, when I > >reinserted the memory, it continued to boot. I didn't have the > >foresight to try it before I fiddled with the disks, but I > >can't imagine that it had been seated incorrectly as the > >server had been up for two months without problem. Also, the > >BIOS tests passed, although I know they aren't too in depth. > >I'll run sysutils/memtest anyway, and see what that throws up. > > > >Any other suggestions as to what caused the failure? I know > >I've changed the conditions and may never be able to > >reproduce it (nor do I want to), but if I've failing > >hardware, I'd like a best guess as to where it is. > > > > I have had memory chips walk out of the slots on several > occasions. Sometimes its vibration or in Hawaii we have > humidity issues occasionally that tend to cause this too. > I have learned to spray the sockets and card connections with > contact cleaner about every 6 months to avaid this problem. > Especially in areas where servers are not in a cool > environment. > It was operating in a climate controlled server room, so in theory the sub-optimal, being stacked with three other servers, all without rails, so I guess vibration is one plausible explanation. -fr. -- Feargal Reilly, Chief Techie, FBI. PGP Key: 0xBD252C01 (expires: 2006-11-30) Web: http://www.fbi.ie/ | Tel: +353.14988588 | Fax: +353.14988489 Communications House, 11 Sallymount Avenue, Ranelagh, Dublin 6.