From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755870AbZBNVxn (ORCPT ); Sat, 14 Feb 2009 16:53:43 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753875AbZBNVxU (ORCPT ); Sat, 14 Feb 2009 16:53:20 -0500 Received: from mail-gx0-f222.google.com ([209.85.217.222]:34330 "EHLO mail-gx0-f222.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752259AbZBNVxT (ORCPT ); Sat, 14 Feb 2009 16:53:19 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:newsgroups:to:cc :subject:references:in-reply-to:content-type :content-transfer-encoding; b=TmBkQ0MuDozEJuo19HZ1+vGvLLmjTWLyFJnGv8oTS9zSx1RoIVwIdCO6H4Aq0o0qXA zBKesyEtzcCvUxnUdNe7fsas2KXqDsh9QunjBPo9dgjfbhSrd2zXM5eRhqjkJuFY8/Va H87y5yXdnOqHBpoPwDFxKOGi3IH9BnlwUvYs8= Message-ID: <49973D4B.30802@gmail.com> Date: Sat, 14 Feb 2009 15:53:15 -0600 From: Robert Hancock User-Agent: Thunderbird 2.0.0.19 (X11/20090105) MIME-Version: 1.0 Newsgroups: gmane.linux.kernel To: Richard Jonsson CC: linux-kernel@vger.kernel.org Subject: Re: Unable to write dvd+r on 3 systems References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Richard Jonsson wrote: > > It seems I am the last person on earth burning dvd's. I have tried on three different systems, using a mix of growisofs, xfburn, brasero and k3b. They all give the same result for their respective system. > > On system 1 it takes forever to complete the process. The system is completely useless while burning. IO wait is 50% and hardIRQ is 10-20%. If audio is playing at the same time it stutters in a way that it sounds as it's playing slow. Mouse cursor jerks and it takes eons to even open a new terminal. > > On system 2 growisofs will try for half a minute and then fail with a message in dmesg. The disc isn't even touched. Tried homebuilt kernel.org kernels from 2.6.25 to current git with no difference. See attachment "growisofs_system2.txt". I have been able to burn exactly 1 disc in total, which magically started recording immediately. > > System 3 burns at decent speed and always reports success, but about half the time only part of the disc is actually burned. It is visible to the eye, and it will not work. Tried at 4x too. It sounds like you may have multiple problems. System 1 sounds like maybe DMA is not being used for some reason, the dmesg output would be useful. On System 2 it looks like a write timed out, and system 3 is having burn quality problems. System 1 may have a kernel issue that should be looked into, but as for the other two, I would tend to suspect the quality of the discs you are using. There is a lot of crap media out there, and also some burners don't like discs with media codes that they don't have preprogrammed burn strategies for.