From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261678AbULZPw6 (ORCPT ); Sun, 26 Dec 2004 10:52:58 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261693AbULZPw5 (ORCPT ); Sun, 26 Dec 2004 10:52:57 -0500 Received: from stat16.steeleye.com ([209.192.50.48]:14260 "EHLO hancock.sc.steeleye.com") by vger.kernel.org with ESMTP id S261678AbULZPuT (ORCPT ); Sun, 26 Dec 2004 10:50:19 -0500 Subject: Re: Ho ho ho - Linux v2.6.10 From: James Bottomley To: Linus Torvalds Cc: Paul Blazejowski , Linux Kernel , Diffie In-Reply-To: References: <9dda349204122520106f3b2f46@mail.gmail.com> Content-Type: text/plain Date: Sun, 26 Dec 2004 09:46:51 -0600 Message-Id: <1104076011.5268.20.camel@mulgrave> Mime-Version: 1.0 X-Mailer: Evolution 2.0.2 (2.0.2-3) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 2004-12-25 at 21:27 -0800, Linus Torvalds wrote: > As to what the "DV failed", it's apparently normal if DV is disabled, > whatever the hell that is. James will know whether it's something to > worry about.. DV is Domain Validation. It's a way of probing the SCSI bus to see what type of transfer speeds and widths it can support. DV is part of the mid-layer SPI transport class, which is where most drivers get it from. However, this message is from the aic7xxx which does its own DV separately from the mid-layer. As far as I can tell from the aic7xxx code, it has a state machine model of DV and it prints this message if it goes through an unexpected transition of that state machine, but I've no idea from the message what actually happened. Everything seems to proceed normally, since the device that caused the problems is later configured at 160MB/s (the maximum the aic7xxx can do). James