From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265224AbUBEN0D (ORCPT ); Thu, 5 Feb 2004 08:26:03 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265232AbUBEN0D (ORCPT ); Thu, 5 Feb 2004 08:26:03 -0500 Received: from out011pub.verizon.net ([206.46.170.135]:65415 "EHLO out011.verizon.net") by vger.kernel.org with ESMTP id S265224AbUBEN0A convert rfc822-to-8bit (ORCPT ); Thu, 5 Feb 2004 08:26:00 -0500 From: Gene Heskett Reply-To: gene.heskett@verizon.net Organization: Organization: None, detectable by casual observers To: linux-kernel@vger.kernel.org Subject: cdwriter /dev/hdc question Date: Thu, 5 Feb 2004 08:25:58 -0500 User-Agent: KMail/1.6 MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Message-Id: <200402050825.58623.gene.heskett@verizon.net> X-Authentication-Info: Submitted using SMTP AUTH at out011.verizon.net from [151.205.53.166] at Thu, 5 Feb 2004 07:25:59 -0600 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Greetings; Running 2.6.2 atm, but for quite a while in the 2.6.x series I've had a line in /var/log/messages immediately after the dmesg dump indicating that dma was being disabled for /dev/hdc. >>From /var/log/dmesg: --- VP_IDE: VIA vt8233 (rev 00) IDE UDMA100 controller on pci0000:00:11.1 ide0: BM-DMA at 0xd800-0xd807, BIOS settings: hda:DMA, hdb:DMA ide1: BM-DMA at 0xd808-0xd80f, BIOS settings: hdc:DMA, hdd:DMA [...] hdc: CREATIVE CD-RW RW1210E, ATAPI CD/DVD-ROM drive [...] hdc: ATAPI 32X CD-ROM CD-R/RW drive, 2048kB Cache, DMA Uniform CD-ROM driver Revision: 3.20 [...] --- >>From /var/log/messages, immediately after the dmesg dump: --- Feb 4 21:30:47 coyote kernel: hdc: DMA disabled --- However, I put an hdparm line at the bottom of rc.local that turns it back on and it works great, yet to see an error while burning. So why is the kernel turning it off in the first place? -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) 99.22% setiathome rank, not too shabby for a WV hillbilly Yahoo.com attornies please note, additions to this message by Gene Heskett are: Copyright 2004 by Maurice Eugene Heskett, all rights reserved.