Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757570AbXJXRXb (ORCPT ); Wed, 24 Oct 2007 13:23:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753166AbXJXRXW (ORCPT ); Wed, 24 Oct 2007 13:23:22 -0400 Received: from terminus.zytor.com ([198.137.202.10]:33446 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753068AbXJXRXV (ORCPT ); Wed, 24 Oct 2007 13:23:21 -0400 Message-ID: <471F7F28.2010805@zytor.com> Date: Wed, 24 Oct 2007 10:21:44 -0700 From: "H. Peter Anvin" User-Agent: Thunderbird 2.0.0.5 (X11/20070727) MIME-Version: 1.0 To: Boaz Harrosh CC: Rajkumar S , linux-kernel Subject: Re: HIGHMEM64G Kernel (2.6.23.1) makes system crawl References: <64de5c8b0710240326q709ca7fbq4b365bcaf6e89fb9@mail.gmail.com> <471F598C.5030903@panasas.com> In-Reply-To: <471F598C.5030903@panasas.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 702 Lines: 19 Boaz Harrosh wrote: > > From looking in source code the CONFIG_HIGHMEM64G is broken in many respects, > in my opinion. It's really a 64-bit with 32-bit quirks enabled. Does it even > run on None 64-bit machines? Not many! > Total and utter bullsh*t. It runs on virtually all modern x86's since the P6/K7 (certain Pentium M chips being an exception). Also, it is required for NX protection and for several of the paravirt environments to work. -hpa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/