Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756185Ab3CFW1l (ORCPT ); Wed, 6 Mar 2013 17:27:41 -0500 Received: from mga02.intel.com ([134.134.136.20]:54105 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753136Ab3CFW1k (ORCPT ); Wed, 6 Mar 2013 17:27:40 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.84,798,1355126400"; d="scan'208";a="272553709" Message-ID: <5137C2C7.3020302@linux.intel.com> Date: Wed, 06 Mar 2013 14:27:19 -0800 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130219 Thunderbird/17.0.3 MIME-Version: 1.0 To: Henrik Rydberg CC: Yinghai Lu , Linus Torvalds , Linux Kernel Mailing List Subject: Re: Linux 3.9-rc1 References: <20130306100743.GA407@polaris.bitmath.org> <20130306193612.GA513@polaris.bitmath.org> <51379A4F.4020200@linux.intel.com> <20130306195457.GA449@polaris.bitmath.org> <20130306204500.GA335@polaris.bitmath.org> <5137AE06.8060200@linux.intel.com> <5137B9DB.6000605@linux.intel.com> <20130306220412.GA1064@polaris.bitmath.org> In-Reply-To: <20130306220412.GA1064@polaris.bitmath.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 872 Lines: 25 On 03/06/2013 02:04 PM, Henrik Rydberg wrote: >> >> Sigh. This is why "keep the page tables together" is fundamentally the >> wrong strategy. >> >> 8M means that we won't even be able to boot on machines with less than >> 16M or so of RAM... I'm not sure if anyone still cares, but that is a >> pretty aggressive heuristic. > > Maybe this should be a config option, given the ad-hoc nature of the > chosen value? Anyway, the patch works. > Can we make a sensible argument for what the value *needs* to be? 2M at least makes a modicum of sense. Either way, it's clear we still have plenty of cleaning up to do... -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/