From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751993Ab1GYKeC (ORCPT ); Mon, 25 Jul 2011 06:34:02 -0400 Received: from out02.mta.xmission.com ([166.70.13.232]:39381 "EHLO out02.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751093Ab1GYKd6 (ORCPT ); Mon, 25 Jul 2011 06:33:58 -0400 From: ebiederm@xmission.com (Eric W. Biederman) To: Bob Zhang Cc: Linux Kernel Mailing List , hayfeng Lee , ak@linux.intel.com, Bob Zhang <2004.zhang@gmail.com> References: <5f6c52c61003241920i6b3eaaf7k946f67d1a6f9e384@mail.gmail.com> Date: Mon, 25 Jul 2011 03:33:53 -0700 In-Reply-To: (Bob Zhang's message of "Mon, 25 Jul 2011 18:17:05 +0800") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-XM-SPF: eid=;;;mid=;;;hst=in02.mta.xmission.com;;;ip=98.207.153.68;;;frm=ebiederm@xmission.com;;;spf=neutral X-XM-AID: U2FsdGVkX189Ptl8aDLsJ4/mmBWdTUCUOmXY7awF2eE= X-SA-Exim-Connect-IP: 98.207.153.68 X-SA-Exim-Mail-From: ebiederm@xmission.com X-Spam-Report: * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP * 0.0 T_TM2_M_HEADER_IN_MSG BODY: T_TM2_M_HEADER_IN_MSG * -3.0 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * -0.0 DCC_CHECK_NEGATIVE Not listed in DCC * [sa01 1397; Body=1 Fuz1=1 Fuz2=1] * 0.4 UNTRUSTED_Relay Comes from a non-trusted relay X-Spam-DCC: XMission; sa01 1397; Body=1 Fuz1=1 Fuz2=1 X-Spam-Combo: ;Bob Zhang X-Spam-Relay-Country: Subject: Re: x86_64 virtual memory map X-Spam-Flag: No X-SA-Exim-Version: 4.2.1 (built Fri, 06 Aug 2010 16:31:04 -0600) X-SA-Exim-Scanned: Yes (on in02.mta.xmission.com) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Bob Zhang writes: > I have HP's latest Proliant machine , The test involves using > configurations of 1 TB of Ram then 2TB of RAM. The system ROM is > reporting the proper amount of installed memory, however, Linux is > only reporting 992GB with both 1TB and 2 TB of memory in the system. > The customer has made the changes in the RMSU from 40 to 44 bit > addressing when using the 2TB of memory but this does not change > anything. > I am using SLES 11 SP1 (linux kernel is 2.6.32) > Does anyone have any idea how to get Linux to see the full amount of > memory? What does the e820 map printed by the kernel at the start of time report? In particular is all of memory visible there? Eric