From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: ahci fails with SATA DVD drive, IDE mode works Date: Wed, 04 Mar 2009 10:30:47 +0900 Message-ID: <49ADD9C7.7000207@kernel.org> References: <20090211174558.505354fe@dhcp-100-2-144.bos.redhat.com> <499D2202.7070503@kernel.org> <20090221181705.0b5f9ed3@dhcp-100-2-144.bos.redhat.com> <49A4DFD4.3030206@kernel.org> <20090225181530.1c575a30@dhcp-100-2-144.bos.redhat.com> <49A5EB45.6050202@kernel.org> <20090227175746.44acdbfa@dhcp-100-2-144.bos.redhat.com> <49AA7EF9.7000306@kernel.org> <20090303162352.23432dd1@dhcp-100-2-144.bos.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from hera.kernel.org ([140.211.167.34]:38852 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751991AbZCDBav (ORCPT ); Tue, 3 Mar 2009 20:30:51 -0500 In-Reply-To: <20090303162352.23432dd1@dhcp-100-2-144.bos.redhat.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Chuck Ebbert Cc: linux-ide@vger.kernel.org, Mark Lord Chuck Ebbert wrote: > On Sun, 01 Mar 2009 21:26:33 +0900 > Tejun Heo wrote: > >>> I ran 'hdparm -I' here. Why would it send BLANK to the drive?? >>> (There was a 1.4 GB DVD-RW in the drive when I did that.) >> CDB 0xa1 is BLANK alright. Is the problem reproducible? >> Now that I think about it, 0xa0 is PACKET and 0xa1 is IDENTIFY_ATAPI. You used "hdparm -I /dev/sr0", right? Mark, any ideas? Somehow IDENTIFY is getting wrapped inside packet and sent to the device. Thanks. -- tejun