From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1031114AbXD3Tui (ORCPT ); Mon, 30 Apr 2007 15:50:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1031110AbXD3Tui (ORCPT ); Mon, 30 Apr 2007 15:50:38 -0400 Received: from wr-out-0506.google.com ([64.233.184.226]:22390 "EHLO wr-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1031114AbXD3Tuf (ORCPT ); Mon, 30 Apr 2007 15:50:35 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:x-enigmail-version:content-type:content-transfer-encoding; b=bZNm8GxOqeluUEUeVVZBg7bOshzlY6rIYW7PEeoz2nF5rU6ZNhH1rkVSQFV44MrnCSpC8imvnfABvFRpBjQJ5H0YQH9hh3MkUERIRKgC/k+7gtBUjnSOoraX8o9v8+IpVtWCObZwadLW4f0Wz+0MeT4+c6Lb5i0hHXffNoQTkg0= Message-ID: <4635C35D.1020807@gmail.com> Date: Mon, 30 Apr 2007 12:22:21 +0200 From: Tejun Heo User-Agent: Thunderbird 2.0.0.0 (X11/20070326) MIME-Version: 1.0 To: William Thompson CC: linux-kernel@vger.kernel.org Subject: Re: 2.6.20 libata cdrom References: <20070427175205.GD7809@electro-mechanical.com> In-Reply-To: <20070427175205.GD7809@electro-mechanical.com> X-Enigmail-Version: 0.95.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello, William Thompson wrote: > I've been playing with libata on a few machines and I found that this machine > (An old Dell Dimension L866r) gives me this when it loads and does not give me > access to the cdrom. This is the only machine that I've tested that I know > for a fact cannot do DMA on the cdrom. I searched and noticed a similar > problem with 2.6.19-rc versions but I'm not sure if it's the same problem. > > dmesg output: > libata version 2.00 loaded. > ata_piix 0000:00:1f.1: version 2.00ac7 > PCI: Setting latency timer of device 0000:00:1f.1 to 64 > ata1: PATA max UDMA/66 cmd 0x1F0 ctl 0x3F6 bmdma 0xFFA0 irq 14 > ata2: PATA max UDMA/66 cmd 0x170 ctl 0x376 bmdma 0xFFA8 irq 15 > scsi0 : ata_piix > ata1.00: ATA-4, max UDMA/33, 10018890 sectors: LBA > ata1.00: ata1: dev 0 multi count 16 > ata1.00: configured for UDMA/33 > scsi1 : ata_piix > ata2.00: failed to IDENTIFY (I/O error, err_mask=0x1) Hmm... IDENTIFY failed on the second port. How reproducible is the problem? Every time? Does it work with the IDE driver? If so, please post the result of 'hdparm -I /dev/hdX'. -- tejun