From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756590AbYDMCYV (ORCPT ); Sat, 12 Apr 2008 22:24:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752611AbYDMCYM (ORCPT ); Sat, 12 Apr 2008 22:24:12 -0400 Received: from wa-out-1112.google.com ([209.85.146.176]:32730 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751933AbYDMCYK (ORCPT ); Sat, 12 Apr 2008 22:24:10 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:x-enigmail-version:content-type:content-transfer-encoding; b=qMNaFK7MltohecoaUcgy3sbMrD5wsc4KcckUdgEJlEhRKxcoHqTRYpqWH6pfNJXSpl+4ZQCDJa+NnvCVk6wB8Q6Jh+EUNKIwiOILxrDIQIH0RfZlIiAAHo7COt54ewXW8un8rR4tEYE77dPlQfA2yywLU8DHL8MTPQ0kQoO82tE= Message-ID: <48016EB4.1070804@gmail.com> Date: Sun, 13 Apr 2008 11:23:48 +0900 From: Tejun Heo User-Agent: Thunderbird 2.0.0.12 (X11/20080226) MIME-Version: 1.0 To: Andrew Morton CC: =?ISO-8859-1?Q?=22J=2EA=2E_Magall=F3n=22?= , "Linux-Kernel, " , linux-ide@vger.kernel.org Subject: Re: Again... DMA speed too slow References: <20080330235357.20a54963@werewolf> <20080402001640.41c103a7.akpm@linux-foundation.org> In-Reply-To: <20080402001640.41c103a7.akpm@linux-foundation.org> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Andrew Morton wrote: > On Sun, 30 Mar 2008 23:53:57 +0200 "J.A. Magallón" wrote: > >> Hi all... >> >> I have tried to burn some data from the commandline with wodim (since time >> ago I just used beasero...), and I have noticed this (media is CD, not DVD): >> >> Vendor_info : 'HL-DT-ST' >> Identification : 'DVDRAM GSA-H10N ' >> Revision : 'JL12' >> Device seems to be: Generic mmc2 DVD-R/DVD-RW. >> Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). >> Driver flags : MMC-3 SWABAUDIO BURNFREE >> Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R >> Speed set to 8467 KB/s >> wodim: DMA speed too slow (OK for 5x). Cannot write at speed 48x. >> Starting to write CD/DVD at speed 48.0 in real TAO mode for single session. >> >> I just can burn CDs at 5x ?? >> But then the program tries to write at 48x. >> It the DMA message really true ? Which controller are you on? I bet the recording itself will work fine on 48x. It's probably that READ/WRITE BUFFERs are executed using PIO for compatibility reasons. -- tejun