Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266622AbTGFH24 (ORCPT ); Sun, 6 Jul 2003 03:28:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266623AbTGFH24 (ORCPT ); Sun, 6 Jul 2003 03:28:56 -0400 Received: from pc2-cwma1-4-cust86.swan.cable.ntl.com ([213.105.254.86]:2976 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S266622AbTGFH2z (ORCPT ); Sun, 6 Jul 2003 03:28:55 -0400 Subject: Re: 2.4.21 ServerWorks DMA Bugs From: Alan Cox To: Ryan Mack Cc: Markus Plail , Linux Kernel Mailing List In-Reply-To: References: <87fzllh21i.fsf@gitteundmarkus.de> Content-Type: text/plain Content-Transfer-Encoding: 7bit Organization: Message-Id: <1057477237.700.6.camel@dhcp22.swansea.linux.org.uk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-5) Date: 06 Jul 2003 08:40:38 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 750 Lines: 18 On Sad, 2003-07-05 at 17:58, Ryan Mack wrote: > That at least explains the lack of DMA, but why does non-DMA IO result in > such significant clock skew? Because for PIO we default to I/O with IRQ blocked (which is needed for some older 486 type hardware). I really should make setup_pci set the unmask flag > Also, does anybody know what the status of the failure to recognize higher > UDMA modes on the CSB5 chipset? Is there a working patch out there? CSB5 UDMA works properly to all my knowledge - 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/