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, 19 Sep 2001 18:10:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 19 Sep 2001 18:10:40 -0400 Received: from ns.caldera.de ([212.34.180.1]:40646 "EHLO ns.caldera.de") by vger.kernel.org with ESMTP id ; Wed, 19 Sep 2001 18:10:32 -0400 Date: Thu, 20 Sep 2001 00:10:48 +0200 From: Christoph Hellwig To: Peter Wong Cc: linux-kernel@vger.kernel.org, lse-tech@lists.sourceforge.net Subject: Re: [Lse-tech] Regarding Jens' Zero-Bounce Highmem I/O Patch Message-ID: <20010920001048.A11073@caldera.de> Mail-Followup-To: Christoph Hellwig , Peter Wong , linux-kernel@vger.kernel.org, lse-tech@lists.sourceforge.net In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: ; from wpeter@us.ibm.com on Wed, Sep 19, 2001 at 05:04:59PM -0500 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 19, 2001 at 05:04:59PM -0500, 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? block-highmem-all-5 is _very_ _very_ old. Please upgrade to a recent kernel and patch and report again. I had a system with PAE enabled and 2.4.9ac + some hacked block-highmem patch running very well here. (Probably it still runns :)) Christoph -- Of course it doesn't work. We've performed a software upgrade.