From owner-freebsd-hackers Sat Jan 31 00:05:19 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id AAA08319 for hackers-outgoing; Sat, 31 Jan 1998 00:05:19 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from gratis.grondar.za (gratis.grondar.za [196.7.18.133]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id AAA08314 for ; Sat, 31 Jan 1998 00:05:15 -0800 (PST) (envelope-from mark@greenpeace.grondar.za) Received: from greenpeace.grondar.za (greenpeace.grondar.za [196.7.18.132]) by gratis.grondar.za (8.8.8/8.8.8) with ESMTP id KAA03937; Sat, 31 Jan 1998 10:05:04 +0200 (SAST) (envelope-from mark@greenpeace.grondar.za) Received: from greenpeace.grondar.za (localhost [127.0.0.1]) by greenpeace.grondar.za (8.8.8/8.8.8) with ESMTP id KAA05669; Sat, 31 Jan 1998 10:05:03 +0200 (SAST) (envelope-from mark@greenpeace.grondar.za) Message-Id: <199801310805.KAA05669@greenpeace.grondar.za> X-Mailer: exmh version 2.0.1 12/23/97 To: Mike Smith cc: Julian Elischer , hackers@FreeBSD.ORG Subject: Re: The 'dave rivers' momorial panic. Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sat, 31 Jan 1998 10:05:03 +0200 From: Mark Murray Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG X-To-Unsubscribe: mail to majordomo@FreeBSD.org "unsubscribe hackers" Mike Smith wrote: > > turns out it was a hardware problem.. > > some IDE chipsets an ddrives were incapable of running on > > a ribbon cable over about 40cm (16") long. > > This *is* the specified limit for the ATA bus, funnily enough. This is one of the hateful things about the ATA bus. It is not electronically "correct" - it is effectively an unterminated transmission line, and has _horrible_ noise/ringing problems. M -- Mark Murray Join the anti-SPAM movement: http://www.cauce.org