From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030186AbVLVOW1 (ORCPT ); Thu, 22 Dec 2005 09:22:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030188AbVLVOW1 (ORCPT ); Thu, 22 Dec 2005 09:22:27 -0500 Received: from s176.evanzo-server.de ([62.67.235.176]:17766 "EHLO mx12.evanzo-server.de") by vger.kernel.org with ESMTP id S1030186AbVLVOW0 (ORCPT ); Thu, 22 Dec 2005 09:22:26 -0500 Message-ID: <43AAB8A2.7020506@daviddasenbrook.de> Date: Thu, 22 Dec 2005 15:30:58 +0100 From: David Dasenbrook User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5) Gecko/20050105 Debian/1.7.5-1 X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: Kernel hangs trying to speak to DVD-ROM Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello, I am sending this to the linux-kernel mailing list because I am almost sure that this is a bug in the linux kernel. If it's not, please forgive me and just ignore this message. I have this weird problem, and I would appreciate if someone could give me a hint on how to solve it: Whenever I connect a DVD-ROM drive (ANY DVD-Drive, not just a specific one) to my computer via the onboard IDE-connector, I cannot boot the kernel any more. The last message the kernel prints (actually, I think it's the ide-cd module) after getting hung up is this: hdc: packet command error: status=0x51 { DriveReady SeekComplete Error } hdc: packet command error: error=0x04 hdc: request sense failure: status=0x51 { DriveReady SeekComplete Error } hdc: request sense failure: error=0x04Aborted Command I tried using the first and the second IDE channel, using the drive as master and slave. The strange thing is that CD-drives work perfectly fine, this happens just with DVD-Drives. Those DVD-Drives work fine in another computer with the exact same kernel. My mainboard is an AK70 by DFI, I think the onboard IDE-controller is the AMD7409 (that's what the kernel says.) I use Linux 2.6.11. 2.4.x kernels don't work either, real old distributions with kernel 2.2 or lower do. After playing around a bit, I found the DVD works when I type "hdc=noprobe hdc=cdrom" on the kernel command line. But still, I cannot do that when trying to run the debian installer or installers of debian derivatives. When detecting the DVD-ROM drive, the installer just hangs and I can't do anything any more but reboot. Not to speak of being able to use DMA. I find this really strange, maybe someone has a clue. If not, thanks anyway for taking the time to read this message. If you reply to this, please send me a CC. Thank you, David Dasenbrook