From owner-freebsd-stable Tue Nov 6 14:21:44 2001 Delivered-To: freebsd-stable@freebsd.org Received: from prism.flugsvamp.com (cb58709-a.mdsn1.wi.home.com [24.17.241.9]) by hub.freebsd.org (Postfix) with ESMTP id B802737B416 for ; Tue, 6 Nov 2001 14:21:37 -0800 (PST) Received: (from jlemon@localhost) by prism.flugsvamp.com (8.11.0/8.11.0) id fA6MLYY99793; Tue, 6 Nov 2001 16:21:34 -0600 (CST) (envelope-from jlemon) Date: Tue, 6 Nov 2001 16:21:34 -0600 (CST) From: Jonathan Lemon Message-Id: <200111062221.fA6MLYY99793@prism.flugsvamp.com> To: behanna@zbzoom.net, stable@freebsd.org Subject: Re: What NIC to choose ? X-Newsgroups: local.mail.freebsd-stable In-Reply-To: References: Organization: Cc: Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In article you write: >On Tue, 6 Nov 2001, Bill Moran wrote: > >> Chris BeHanna wrote: >> > On Tue, 6 Nov 2001, Kenneth Mays wrote: >> > >> > >> >>Why not use the Intel 10/100 NICs?? >> >> >> > >> > As I recall, there's a very weird and hard-to-replicate >> > interaction problem between the fxp driver and vinum that leads to >> > corrupted RAID-5 volumes. >> > >> > Good enough reason for me not to spend the money on Intel NICs. >> >> Is this documented anywhere in more detail? I have three servers >> that I've installed and admin with Vinum + fxp driver and have had >> no problems whatsoever. None of these are running RAID-5, however, >> so if the problem only occurs with RAID-5, I won't have seen it. > > It's come up on this list a few times, when Greg Lehey has been >trying to pull the necessary information out of someone to chase >this bug down and squash it. It only occurs with RAID-5 and fxp, >apparently, and even then, not frequently or in any reproducible >manner. I quite fail to see why there would be any interaction between vinum and fxp. However, it is possible that the motherboard has a problem with running various disk controllers and ethernet at the same time. Matt Dillon saw a problem on his Dell machines where running fxp + ahc at the same time lead to panics; this was eventually traced to marginal, heat sensitive hardware on the motherboard. Perhaps this is the same issue here. -- Jonathan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message