From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751451AbXDNWFI (ORCPT ); Sat, 14 Apr 2007 18:05:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751564AbXDNWFI (ORCPT ); Sat, 14 Apr 2007 18:05:08 -0400 Received: from terminus.zytor.com ([192.83.249.54]:53371 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751451AbXDNWFG (ORCPT ); Sat, 14 Apr 2007 18:05:06 -0400 Message-ID: <46214FD3.3080400@zytor.com> Date: Sat, 14 Apr 2007 15:04:03 -0700 From: "H. Peter Anvin" User-Agent: Thunderbird 1.5.0.10 (X11/20070302) MIME-Version: 1.0 To: Jeremy Fitzhardinge CC: Andi Kleen , Andrew Morton , virtualization@lists.osdl.org, lkml , Zachary Amsden , Chris Wright , "Eric W. Biederman" , Linus Torvalds Subject: Re: [PATCH 10/28] i386: map enough initial memory to create lowmem mappings References: <20070414204154.871250608@goop.org> <20070414204924.125386443@goop.org> In-Reply-To: <20070414204924.125386443@goop.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jeremy Fitzhardinge wrote: > - > +LOW_PAGES = 1<<(32-PAGE_SHIFT_asm) > + Again, for debugging... it would be interesting to replace this with: LOW_PAGES = (0x100000000-__PAGE_OFFSET) >> PAGE_SHIFT_asm ... to smoke out further problems; this will take the strict definition of "lowmem" (modulo the pci region, which someone unwisely made dynamically adjustable... which would have been fine if initramfs could live in highmem, which it can't yet.) -hpa