Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261351AbVA1Nrj (ORCPT ); Fri, 28 Jan 2005 08:47:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261352AbVA1Nrj (ORCPT ); Fri, 28 Jan 2005 08:47:39 -0500 Received: from ns.virtualhost.dk ([195.184.98.160]:35271 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S261351AbVA1Nrh (ORCPT ); Fri, 28 Jan 2005 08:47:37 -0500 Date: Fri, 28 Jan 2005 14:47:10 +0100 From: Jens Axboe To: Kasper Sandberg Cc: Alan Cox , Alessandro Suardi , Volker Armin Hemmann , Linux Kernel Mailing List Subject: Re: DVD burning still have problems Message-ID: <20050128134710.GO4800@suse.de> References: <200501232126.55191.volker.armin.hemmann@tu-clausthal.de> <5a4c581d050123125967a65cd7@mail.gmail.com> <20050124150755.GH2707@suse.de> <1106594023.6154.89.camel@localhost.localdomain> <20050124204529.GA19242@suse.de> <1106598811.6154.93.camel@localhost.localdomain> <1106607691.13336.10.camel@localhost> <1106610498.10239.108.camel@localhost.localdomain> <1106919775.13188.2.camel@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1106919775.13188.2.camel@localhost> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1510 Lines: 32 On Fri, Jan 28 2005, Kasper Sandberg wrote: > On Mon, 2005-01-24 at 23:48 +0000, Alan Cox wrote: > > On Llu, 2005-01-24 at 23:01, Kasper Sandberg wrote: > > > > there are certainly chipset and CPU errata in this area. > > > would this mean that i should not use cpu frequency scaling? > > > > Worth an experiment but I'd be suprised if it was your fix. The more > > data the better however > I disabled cpufreq in the kernel, acpi i still have in kernel.. when i > booted i did acpi=off, and changed IO scheduler to anticipatory > i just burned a DVD, and it works ;D pretty neat, im not sure what > caused it. but im glad.. i still have the small change in scsi_ioctl.h, > however nothing appears in dmesg.. gonna burn one more dvd in a little > bit, if it doesent work, i will let you know, if you dont hear more > about it, assume it works :DD > > btw: the reason i changed to anticipatory from cfq is that i noticed > that sometimes the speed dropped abit, and thought it might have > something to do with it, and, with as it did not That's interesting, a short io starvation could for sure cause it. I would really appreciate if you could try one change at the time though, right now it's not really clear if it's acpi or the io scheduler. -- Jens Axboe - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/