From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sergei Shtylyov Subject: Re: What's in libata-dev.git Date: Mon, 11 Sep 2006 19:05:11 +0400 Message-ID: <45057B27.9020302@ru.mvista.com> References: <20060911132250.GA5178@havoc.gtf.org> <45056627.7030202@ru.mvista.com> <450566A2.1090009@garzik.org> <450568F3.3020005@ru.mvista.com> <1157986974.23085.147.camel@localhost.localdomain> <45057651.8000404@garzik.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from h155.mvista.com ([63.81.120.155]:53044 "EHLO imap.sh.mvista.com") by vger.kernel.org with ESMTP id S932249AbWIKPC5 (ORCPT ); Mon, 11 Sep 2006 11:02:57 -0400 In-Reply-To: <45057651.8000404@garzik.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Jeff Garzik Cc: Alan Cox , linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, Andrew Morton , Linus Torvalds Hello. Jeff Garzik wrote: >> Ar Llu, 2006-09-11 am 17:47 +0400, ysgrifennodd Sergei Shtylyov: >>> It's not likely I'll be able to try it. But I'm absolutely sure >>> that drive aborted the read commands with the sector count of 0 (i.e. >>> 256 actually). The exact model was IBM DHEA-34331. >> Several people reported this problem when we tried 256 years ago in >> drivers/ide. You might want to do 256 for SATA Jeff but please don't do >> 256 for PATA. Reading specs is too hard for some people ;) >> Some drives abort the xfer, some just choked. > Where in drivers/ide is it limited to 255? Hm, indeed, it's 256 there... But the changelog in ide-probe.c suggests the were limited to 255 once upon a time. Also, hd.c still has this limit, and changelog talling why it was so... WBR, Sergei