Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755283AbXFZADI (ORCPT ); Mon, 25 Jun 2007 20:03:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752277AbXFZACz (ORCPT ); Mon, 25 Jun 2007 20:02:55 -0400 Received: from imf22aec.mail.bellsouth.net ([205.152.59.70]:34823 "EHLO imf22aec.mail.bellsouth.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751922AbXFZACy (ORCPT ); Mon, 25 Jun 2007 20:02:54 -0400 Date: Mon, 25 Jun 2007 18:00:39 -0500 From: Jay Cliburn To: Chris Snook Cc: "Jay L. T. Cornwall" , Luca Tettamanti , Jeff Garzik , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: [PATCH] atl1: disable 64bit DMA Message-ID: <20070625180039.4f083846@osprey.hogchain.net> In-Reply-To: <46803A40.4070009@redhat.com> References: <467B12CA.5060405@esuna.co.uk> <467BE118.4090308@redhat.com> <467BE4F1.7040308@esuna.co.uk> <467D0EB0.9030100@esuna.co.uk> <20070624125957.2e27820c@osprey.hogchain.net> <467ED4A8.4080500@esuna.co.uk> <20070624164519.04f215b8@osprey.hogchain.net> <467FB237.2030703@esuna.co.uk> <467FB844.6060702@bellsouth.net> <20070625211855.GA19275@dreamland.darkstar.lan> <46803557.50805@redhat.com> <468038FC.6090302@esuna.co.uk> <46803A40.4070009@redhat.com> X-Mailer: Claws Mail 2.9.2 (GTK+ 2.10.13; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1395 Lines: 37 On Mon, 25 Jun 2007 17:57:20 -0400 Chris Snook wrote: > Jay L. T. Cornwall wrote: > > Chris Snook wrote: > > > >> What boards have we seen this on? It's quite possible this is: > > > > I can reproduce on an Asus P5K with a Core 2 Duo E6600. > > > > lspci identifies the controller as: > > 02:00.0 Ethernet controller: Attansic Technology Corp. L1 Gigabit > > Ethernet Adapter (rev b0) > > > > dmesg notes the PCI-DMA mapping implementation: > > PCI-DMA: Using software bounce buffering for IO (SWIOTLB) > > > > I had a hunch this was on Intel. I'd rather just disable this when > swiotlb is in use, unless we get more complaints. It's probably > ultimately a BIOS quirk anyway. So far we have reports from both camps: Asus M2N8-VMX (AM2): 1 report of lockup http://sourceforge.net/mailarchive/forum.php?thread_name=46780384.063603.26165%40m12-15.163.com&forum_name=atl1-devel Asus P5K (LGA775): 2 reports of lockups http://sourceforge.net/mailarchive/forum.php?thread_name=467E7E34.4010603%40gmail.com&forum_name=atl1-devel http://lkml.org/lkml/2007/6/25/107 The common denominator in these reports is 4GB RAM. - 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/