Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758203AbXJKLkS (ORCPT ); Thu, 11 Oct 2007 07:40:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755098AbXJKLjy (ORCPT ); Thu, 11 Oct 2007 07:39:54 -0400 Received: from pear.igowo.de ([81.95.0.210]:51872 "EHLO pear.igowo.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754905AbXJKLjx (ORCPT ); Thu, 11 Oct 2007 07:39:53 -0400 To: Alan Cox Subject: Re: IDE DMA doesn't work with =?UTF-8?Q?pata=5Fvia=20and=20compact=20flas?= =?UTF-8?Q?h=20card?= MIME-Version: 1.0 Date: Thu, 11 Oct 2007 13:39:52 +0200 From: Cc: linux-kernel@vger.kernel.org In-Reply-To: <20071011111911.0d322827@the-village.bc.nu> References: <20071011111911.0d322827@the-village.bc.nu> Message-ID: <552cad388461c04dc635c9e29128339f@localhost> User-Agent: RoundCube Webmail/0.1-rc1 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 815 Lines: 22 On Thu, 11 Oct 2007 11:19:11 +0100, Alan Cox wrote: >> ones, when using DMA. Turning off DMA for the old IDE drivers or >> patching ata_generic to handle my IDE controller and then deactivating >> DMA in the BIOS works, but then disk I/O is unbelievable slow.. do you >> have any idea how to fix it, so that DMA works? > > Does your CF/IDE adapter support DMA ? Oh well, you're right.. there are still some CF/IDE adapters which do not support DMA. I'll guess this is the problem then, so I'll return it to the shop. Best regards, Philipp - 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/