From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 23 Sep 2001 06:47:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 23 Sep 2001 06:47:06 -0400 Received: from ns.virtualhost.dk ([195.184.98.160]:19204 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id ; Sun, 23 Sep 2001 06:46:54 -0400 Date: Sun, 23 Sep 2001 12:47:03 +0200 From: Jens Axboe To: Peter Wong Cc: linux-kernel@vger.kernel.org, lse-tech@lists.sourceforge.net Subject: Re: Regarding Jens' Zero-Bounce Highmem I/O Patch Message-ID: <20010923124703.A539@suse.de> In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-RBL-Warning: (relays.orbs.org) X-RBL-Warning: (inputs.orbs.org) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 19 2001, Peter Wong wrote: > In order to use Jens' zero-bounce highmem I/O patch against 2.4.6, > a small modification for the patch is needed. Simply replace > GFP_BUFFER by GFP_NOIO in block-highmem-all-5.gz, which can be obtained > at http://www.kernel.org/pub/linux/kernel/people/axboe/patches/2.4.6-pre1/. > > However, there is another problem. For both 2.4.5 and 2.4.6 with > Jens' patches, if the kernels are built with 4GB highmem, they > boot without problems. But if the kernels are built with 64GB > highmem, the kernels hang right after uncompressing Linux. Has > anyone seen this problem? It's a "solved" problem (well sort of, I decided against including the < 4GB memory zone which was the cause of this problem) in this old version. Use a more recent one and you'll be fine. Or, use the old one and backout the zone changes. -- Jens Axboe