Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261424AbVBNMew (ORCPT ); Mon, 14 Feb 2005 07:34:52 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261427AbVBNMew (ORCPT ); Mon, 14 Feb 2005 07:34:52 -0500 Received: from pop.gmx.de ([213.165.64.20]:50644 "HELO mail.gmx.net") by vger.kernel.org with SMTP id S261424AbVBNMeu (ORCPT ); Mon, 14 Feb 2005 07:34:50 -0500 X-Authenticated: #8956447 Subject: Re: [Problem] slow write to dvd-ram since 2.6.7-bk8 From: Droebbel To: linux-kernel@vger.kernel.org In-Reply-To: <20050214105332.GA7163@dose.home.local> References: <1108301794.9280.18.camel@localhost.localdomain> <20050213142635.GA2035@animx.eu.org> <20050214085320.GA4910@dose.home.local> <1108376734.9495.8.camel@localhost.localdomain> <20050214105332.GA7163@dose.home.local> Content-Type: text/plain Date: Mon, 14 Feb 2005 13:34:48 +0100 Message-Id: <1108384488.9495.24.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.1.5 Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1606 Lines: 40 On Mo, 2005-02-14 at 11:53 +0100, Tino Keitel wrote: >On Mon, Feb 14, 2005 at 11:25:34 +0100, Droebbel wrote: >> Which 2.6.7 did you use? > >Only 2.6.7 with a -mm patch, since vanilla 2.6.7 screwed up my system >clock, and the noapic option which was suggested to unscrew the clock >screwed up the USB driver etc... :-( Which -mm patch? If that patch contains the error, the bk8 contains it as well and the bk7 doesn't, that might already make serching a bit easier. Or maybe 2.6.6, if you want a stable release. Not tested yet. >What kernels do you suggest me to test? You might try the last working one, 2.6.7 with bk7. You might as well have to replace the drivers/cdrom/cdrom.c with on from a later virsion (>bk15), as the cdrom device is generally marked write-protected with bk2 to bk14. But instead of just trying those kernel versions, I think we might try and find the changes that might have had the unfortunate side effect. I am admittedly not too good at that, as I do not even know C (shame on me). >And what test procedure? Thisis what I do in such cases: > >time { dd if=/dev/zero of= bs=1024k count= ; sync ; } This is what I did. >I'd be very happy to see a fix for this since backups to DVD-RAM are >awfully slow at the moment. I've been after this for months now, before finally posting here... Regards David - 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/