From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Subject: Re: Problem: 2.6.20-rc7 sata_via: SATA-DVD-Writer doesn't work properly Date: Thu, 1 Feb 2007 20:28:12 +0000 Message-ID: <20070201202812.10cba0d2@localhost.localdomain> References: <20070201192231.xhwd8k5t4wg8w4sk@webmail.citykom.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:46020 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1422928AbXBAUQN (ORCPT ); Thu, 1 Feb 2007 15:16:13 -0500 In-Reply-To: <20070201192231.xhwd8k5t4wg8w4sk@webmail.citykom.de> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: juergen.metzdorf@telelev-dsl.de Cc: jeff@garzik.org, linux-ide@vger.kernel.org On Thu, 01 Feb 2007 19:22:31 +0100 juergen.metzdorf@telelev-dsl.de wrote: > Hello, > > I'm experiencing problems with an SATA-DVD-Writer (Samsung SH-S183a) connected > to a VIA8237 motherboard chipset. As you can see in the attached boot.log, the > system is reducing the DMA-Mode from DMA33 to DMA25 then to DMA16 to end up as > PIO4. As a result the dvds that are written are corrupt. During the writing > process the messages log shows repeating entries like this: Please try the patch I posted to the kernel list and ide list yesterday which allows settle time on DMA changes.