Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262715AbTEFMxn (ORCPT ); Tue, 6 May 2003 08:53:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262718AbTEFMxn (ORCPT ); Tue, 6 May 2003 08:53:43 -0400 Received: from ns.suse.de ([213.95.15.193]:15119 "EHLO Cantor.suse.de") by vger.kernel.org with ESMTP id S262715AbTEFMxl (ORCPT ); Tue, 6 May 2003 08:53:41 -0400 Date: Tue, 6 May 2003 15:06:12 +0200 From: Karsten Keil To: Stephan von Krawczynski Cc: Alan Cox , kai@tp1.ruhr-uni-bochum.de, linux-kernel@vger.kernel.org Subject: Re: ISDN massive packet drops while DVD burn/verify Message-ID: <20030506130612.GB6545@pingi3.kke.suse.de> Mail-Followup-To: Stephan von Krawczynski , Alan Cox , kai@tp1.ruhr-uni-bochum.de, linux-kernel@vger.kernel.org References: <20030416151221.71d099ba.skraw@ithnet.com> <20030419193848.0811bd90.skraw@ithnet.com> <1050789691.3955.17.camel@dhcp22.swansea.linux.org.uk> <20030505164653.GA30015@pingi3.kke.suse.de> <20030505192652.7f17ea9e.skraw@ithnet.com> <1052218412.28797.18.camel@dhcp22.swansea.linux.org.uk> <20030506143902.2b3fcecd.skraw@ithnet.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030506143902.2b3fcecd.skraw@ithnet.com> User-Agent: Mutt/1.4i Organization: SuSE Linux AG X-Operating-System: Linux 2.4.20-4GB i686 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1455 Lines: 55 On Tue, May 06, 2003 at 02:39:02PM +0200, Stephan von Krawczynski wrote: > On 06 May 2003 11:53:32 +0100 > Alan Cox wrote: > > > On Llu, 2003-05-05 at 18:26, Stephan von Krawczynski wrote: > > > You mean UDMA 2 does not make it (which I had in the test case)? > > > > But is the transfer being done in UDMA mode ? > > > # hdparm -v /dev/hdc > > /dev/hdc: > HDIO_GET_MULTCOUNT failed: Invalid argument > IO_support = 0 (default 16-bit) > unmaskirq = 0 (off) > using_dma = 1 (on) > keepsettings = 0 (off) > readonly = 0 (off) > BLKRAGET failed: Invalid argument > HDIO_GETGEO failed: Invalid argument > > > using_dma means it's using dma for transfer, right? > It should, but so far I know it cannot do every thing with dma. My writer use: pingi2:~ # hdparm -v /dev/hdc /dev/hdc: HDIO_GET_MULTCOUNT failed: Input/output error IO_support = 1 (32-bit) unmaskirq = 1 (on) using_dma = 0 (off) keepsettings = 0 (off) readonly = 0 (off) BLKRAGET failed: Input/output error HDIO_GETGEO failed: Invalid argument And I see no problems. At least you can try hdparm -u1 (use a RW media). -- Karsten Keil SuSE Labs ISDN development - 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/