From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262793AbVGHTdJ (ORCPT ); Fri, 8 Jul 2005 15:33:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262790AbVGHTam (ORCPT ); Fri, 8 Jul 2005 15:30:42 -0400 Received: from mx1.suse.de ([195.135.220.2]:65516 "EHLO mx1.suse.de") by vger.kernel.org with ESMTP id S262782AbVGHT3i (ORCPT ); Fri, 8 Jul 2005 15:29:38 -0400 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 References: <200507081938.27815.s0348365@sms.ed.ac.uk.suse.lists.linux.kernel> From: Andi Kleen Date: 08 Jul 2005 21:29:37 +0200 In-Reply-To: Message-ID: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org "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