Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932280AbWCUHMO (ORCPT ); Tue, 21 Mar 2006 02:12:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932283AbWCUHMO (ORCPT ); Tue, 21 Mar 2006 02:12:14 -0500 Received: from mtaout2.012.net.il ([84.95.2.4]:9417 "EHLO mtaout2.012.net.il") by vger.kernel.org with ESMTP id S932280AbWCUHMM (ORCPT ); Tue, 21 Mar 2006 02:12:12 -0500 Date: Tue, 21 Mar 2006 09:11:41 +0200 From: Muli Ben-Yehuda Subject: Re: nommu_map_sg: overflow with ata_piix? In-reply-to: To: Roland Dreier Cc: linux-kernel@vger.kernel.org Message-id: <20060321071141.GB25444@granada.merseine.nu> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Content-disposition: inline References: User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 960 Lines: 25 On Mon, Mar 20, 2006 at 07:16:37PM -0800, Roland Dreier wrote: > > nommu_map_sg: overflow 11b8a9000+4096 of device mask ffffffff > > Never mind, I'm (sort of) an idiot. The kernel that complained like > that had CONFIG_GART_IOMMU=n -- I foolishly thought, "I have a Xeon, > which can't do GART IOMMU, so I don't need that option." I didn't > realize that it also enables swiotlb. Once I read the help text I was > OK. In theory it should be possible to turn just swiotlb on, but at the moment it requires gart due to the way pci-dma is structured. If someone is looking for a little side project, this could be a good one. Cheers, Muli -- Muli Ben-Yehuda http://www.mulix.org | http://mulix.livejournal.com/ - 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/