From owner-freebsd-questions@FreeBSD.ORG Fri Jan 16 00:34:56 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A3DF416A4CE for ; Fri, 16 Jan 2004 00:34:56 -0800 (PST) Received: from box84.elkhouse.de (box84.elkhouse.de [213.9.1.84]) by mx1.FreeBSD.org (Postfix) with ESMTP id 79D9243D39 for ; Fri, 16 Jan 2004 00:34:53 -0800 (PST) (envelope-from roman@interview-machine.com) Received: from localhost ([127.0.0.1] helo=mydomain.com) by box84.elkhouse.de with smtp (Exim 3.35 #1 (Debian)) id 1AhPQs-0000Pa-00 for ; Fri, 16 Jan 2004 09:34:22 +0100 Received: from 217.187.89.107 (SquirrelMail authenticated user roman) by interview-machine.com with HTTP; Fri, 16 Jan 2004 09:34:22 +0100 (CET) Message-ID: <49184.217.187.89.107.1074242062.squirrel@interview-machine.com> From: "Roman Kennke" To: X-Priority: 3 Importance: Normal X-MSMail-Priority: Normal X-Mailer: SquirrelMail (version 1.2.6) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Subject: DMA problem with DVD drive X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Date: Fri, 16 Jan 2004 08:34:56 -0000 X-Original-Date: Fri, 16 Jan 2004 09:34:22 +0100 (CET) X-List-Received-Date: Fri, 16 Jan 2004 08:34:56 -0000 Hi there, I am not able to enable DMA for my DVD drive. When I issue 'atacontrol mode 1 UDMA100 XXX' and access the drive, first the drive access hangs, and after a view seconds the machine locks up completely. This also hold true for all other DMA modes. I am running FreeBSD 5.2 on a Fujitsu-Siemens Amilo A Notebook. I would send more info about the ATA/IDE controller, and the error messages but I don't know, how to get to this info. BTW: I know that DMA works for this drive. I have got it working at least with linux 2.4.22, althought I also had alot of DMA problems with other versions, so I suspect the hardware (controller) is flakey. Any help is appreciated. Here follows some output from dmesg: moonlight# dmesg | grep ata atapci0: port 0xa000-0xa00f at device 4.0 on pci0ata0: at 0x1f0 irq 14 on atapci0 ata0: [MPSAFE] ata1: at 0x170 irq 15 on atapci0 ata1: [MPSAFE] ad0: 28615MB [58140/16/63] at ata0-master UDMA100 acd0: CDRW at ata1-master PIO4 Ciao, Roman -- SOAP for Python http://interview-machine.com/soap/