Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752559Ab0ACKJp (ORCPT ); Sun, 3 Jan 2010 05:09:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751994Ab0ACKJm (ORCPT ); Sun, 3 Jan 2010 05:09:42 -0500 Received: from 62.1.125.199.dsl.dyn.forthnet.gr ([62.1.125.199]:16691 "EHLO poseidon.vergina.dyndns.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751814Ab0ACKJm (ORCPT ); Sun, 3 Jan 2010 05:09:42 -0500 Message-ID: <4B406CDF.7010301@asyr.hopto.org> Date: Sun, 03 Jan 2010 12:09:35 +0200 From: Thanasis User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.5) Gecko/20091229 Thunderbird/3.0 ThunderBrowse/3.2.6.8 MIME-Version: 1.0 To: Krzysztof Halasa CC: gentoo-user@lists.gentoo.org, Dirk Heinrichs , LKML Subject: Re: [gentoo-user] RAM installed vs reported References: <4B3B3043.20400@asyr.hopto.org> <200912301208.54359.dirk.heinrichs@online.de> <4B3B38F2.6090006@asyr.hopto.org> <4B3CF04E.8070603@asyr.hopto.org> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-7 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1163 Lines: 26 on 01/01/2010 03:38 PM Krzysztof Halasa wrote the following: > Thanasis writes: > > >>> Depends on the "split" used. With 2 GB : 2 GB you can have all-lowmem >>> 1.5 GB RAM, without CONFIG_HIGHMEM*. 2 GB of per-process address space >>> is usually not a problem. >>> >> How do you implement that? What do you mean 2GB:2GB split ? >> > See "make menuconfig", Processor type and features -> Memory split. You > need to select "EMBEDDED" and "EXPERIMENTAL" first. What you need for > 1.5 GB RAM is VMSPLIT_2G. > > The idea is that the CPU address space is divided: ca. 2 GB (in this > configuration) for user space (for each process - instead of 3 GB), > 2 GB - 128 MB (or something like that, I don't remember exactly) for > physical RAM, and the last 128 MB or so for PCI devices and other > things. > Hmm..., but are EMBEDDED options suitable for a netbook like the A110L ? -- 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/