From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263035AbVGIAxb (ORCPT ); Fri, 8 Jul 2005 20:53:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263039AbVGIAvi (ORCPT ); Fri, 8 Jul 2005 20:51:38 -0400 Received: from bay20-f7.bay20.hotmail.com ([64.4.54.96]:2153 "EHLO hotmail.com") by vger.kernel.org with ESMTP id S263059AbVGIAtf (ORCPT ); Fri, 8 Jul 2005 20:49:35 -0400 Message-ID: X-Originating-IP: [65.64.155.98] X-Originating-Email: [jonschindler@hotmail.com] In-Reply-To: From: "Jon Schindler" To: ak@suse.de, linux-kernel@vger.kernel.org Subject: Re: USB storage does not work with 3GB of RAM, but does with 2G of RAM Date: Fri, 08 Jul 2005 20:49:12 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 09 Jul 2005 00:49:13.0596 (UTC) FILETIME=[06B03BC0:01C58420] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi Andi, As you suggested, removing ehci_hcd (using rmmod ehci_hcd) allows the USB storage device to work. So, to answer your question, yes, the ohci_hcd driver does work with 3GB's of RAM. Still, knoppix 3.9 IS able to work with both ehci and 3GB's of RAM, so it still sounds like it's a software problem, not an nvidia hardware issue. Jon >From: Andi Kleen >To: "Jon Schindler" >CC: linux-kernel@vger.kernel.org >Subject: Re: USB storage does not work with 3GB of RAM, but does with 2G of >RAM >Date: 08 Jul 2005 21:29:37 +0200 > >"Jon Schindler" writes: > > > > This mainly seems to be an issue with USB mass storage devices like > > USB memory sticks and USB hard drives (I've tried both, and neither is > > assigned a scsi device properly). I am still able to use my USB mouse > > when I have 3GB installed. I'm not sure if that makes it a USB 1.1 > > issue or a USB storage issue, but hopefully someone will have some > > insight after looking at the logs. Thanks in advance for any help. > >It sounds like the Nvidia EHCI controller has trouble DMAing to high >addresses. Would be a bad bug if true. > >Does it work when you disable EHCI and only enable OHCI? (this will >limit you to USB 1.1) > >-Andi >- >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/