From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 22 May 2002 17:46:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 22 May 2002 17:46:20 -0400 Received: from nat-pool-rdu.redhat.com ([66.187.233.200]:37779 "EHLO lacrosse.corp.redhat.com") by vger.kernel.org with ESMTP id ; Wed, 22 May 2002 17:46:19 -0400 Date: Wed, 22 May 2002 17:46:14 -0400 From: Doug Ledford To: "Martin J. Bligh" Cc: Alan Cox , bert hubert , "M. Edward Borasky" , linux-kernel@vger.kernel.org Subject: Re: Have the 2.4 kernel memory management problems on large machines been fixed? Message-ID: <20020522174614.B2819@redhat.com> Mail-Followup-To: "Martin J. Bligh" , Alan Cox , bert hubert , "M. Edward Borasky" , linux-kernel@vger.kernel.org In-Reply-To: <1404136612.1022057787@[10.10.2.3]> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 22, 2002 at 08:56:28AM -0700, Martin J. Bligh wrote: > > 7.3 has some of what is needed but not all. > > Can you outline the changes in this area? I want to make sure we're > not all fighting the same problems seperately ;-) I know bounce > buffers is one large element of that, though I believe you still > only go up to 4Gb, unless I'm mistaken? Yes, it only goes up to 4Gb. It's because of the error handling code in the SCSI mid-layer and above, it fails to properly handle the >4gb sg entries on error conditions. I'm working on that now and should have it fixed soon. -- Doug Ledford 919-754-3700 x44233 Red Hat, Inc. 1801 Varsity Dr. Raleigh, NC 27606