From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265696AbUGDOXI (ORCPT ); Sun, 4 Jul 2004 10:23:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265697AbUGDOXI (ORCPT ); Sun, 4 Jul 2004 10:23:08 -0400 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:20154 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S265696AbUGDOXF (ORCPT ); Sun, 4 Jul 2004 10:23:05 -0400 Message-ID: <40E812B8.8010603@pobox.com> Date: Sun, 04 Jul 2004 10:22:48 -0400 From: Jeff Garzik User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040510 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Fawad Lateef CC: linux-kernel@vger.kernel.org Subject: Re: Need help in creating 8GB RAMDISK References: <20040704092523.58214.qmail@web20806.mail.yahoo.com> In-Reply-To: <20040704092523.58214.qmail@web20806.mail.yahoo.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Fawad Lateef wrote: > Hello > > I am creating a RAMDISK of 7GB (from 1GB to 8GB). I > reserved the RAM by changing the code in > arch/i386/mm/init.c .......... On i386 I'm not surprised this ties at 4G. It's probably too much trouble to make part of the ramdisk highmem, and part not. > Can any one tell me the reason behind this ??? I think > that in a single module we can't access more than 4GB > RAM ...... If this is the reason then what to do ??? I > need 7GB RAMDISK as a single drive .... Just use ramfs. Then you don't waste the overhead of putting a filesystem on top of the ramdisk. Jeff