From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Lord Subject: Re: [PATCH] sata_mv: Fix broken Marvell 7042 support. Date: Mon, 03 Dec 2007 19:07:02 -0500 Message-ID: <47549A26.6080900@rtr.ca> References: <4751A2DA.6030403@rtr.ca> <20071203154749.6lah7pulw8ow0s84@email.syntomax.com> <47543C58.4040106@rtr.ca> <475447A0.2010101@rtr.ca> <47544B3C.2010901@rtr.ca> <1196712661.6362.5.camel@liza> <475465F7.7050705@rtr.ca> <1196714235.6362.9.camel@liza> <47546CF6.30301@rtr.ca> <1196722124.6362.17.camel@liza> <20071203231057.39ae9b71@the-village.bc.nu> <1196726490.6362.21.camel@liza> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from rtr.ca ([76.10.145.34]:2419 "EHLO mail.rtr.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751033AbXLDAHE (ORCPT ); Mon, 3 Dec 2007 19:07:04 -0500 In-Reply-To: <1196726490.6362.21.camel@liza> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Hein-Pieter van Braam Cc: Alan Cox , "Morrison, Tom" , IDE/ATA development list , Jeff Garzik , Tejun Heo , Alan Cox Hein-Pieter van Braam wrote: > > I did some testing: > First I zero'd the first 80 meg of the md device, then read it back and > compared, still all zero's. Then I rebooted and compared again, still > all zero's > > Then I got 8MB of stuff from /dev/urandom, wrote it to a file then wrote > it to md device, read it back into a separate file, they still matched. > I rebooted and read it back for a third time, and they still matched. > > I'm not sure if this means anything or not, but I was wondering if my > assertion of BIOS muckery still made sense .. I haven't seen any evidence of it here, either, so long as BIOS "JBOD volumes" are used. So I don't have any explanation for your data "moving around" when you switched drivers, unless *their* driver remaps things at run-time. Or were you switching drivers across those reboots (likely, I suppose)?