Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753092AbZFDRMU (ORCPT ); Thu, 4 Jun 2009 13:12:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751943AbZFDRML (ORCPT ); Thu, 4 Jun 2009 13:12:11 -0400 Received: from smtp3.ultrahosting.com ([74.213.175.254]:46355 "EHLO smtp.ultrahosting.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751867AbZFDRMK (ORCPT ); Thu, 4 Jun 2009 13:12:10 -0400 Date: Thu, 4 Jun 2009 13:11:53 -0400 (EDT) From: Christoph Lameter X-X-Sender: cl@gentwo.org To: Yinghai Lu cc: Andrew Morton , mingo@elte.hu, tglx@linutronix.de, hpa@zytor.com, mel@csn.ul.ie, suresh.b.siddha@intel.com, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk, rusty@rustcorp.com.au, steiner@sgi.com, rientjes@google.com Subject: Re: [RESEND PATCH] mm: clear N_HIGH_MEMORY map before se set it again -v2 In-Reply-To: <4A27FAD4.2010104@kernel.org> Message-ID: References: <4A05269D.8000701@kernel.org> <20090512111623.GG25923@csn.ul.ie> <4A0A64FB.4080504@kernel.org> <20090513145950.GB28097@csn.ul.ie> <4A0C4910.7090508@kernel.org> <4A0C4A2A.6080009@kernel.org> <20090514095414.ba8356e5.akpm@linux-foundation.org> <4A0C4F67.5080802@kernel.org> <20090514102554.b3a36f19.akpm@linux-foundation.org> <4A0C563A.3020100@kernel.org> <4A2758CB.9090404@kernel.org> <4A27FAD4.2010104@kernel.org> User-Agent: Alpine 1.10 (DEB 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 849 Lines: 19 On Thu, 4 Jun 2009, Yinghai Lu wrote: > in case some system strange SRAT table. some kind of small range form some node > or with mem= boot option etc. that node will not be onlined. > In the early checking, the bit in node_states[N_HIGH_MEMORY] for the > node is set even that node has less RAM like 1M. Maybe we can replace that with: SRAT tables may contains nodes of very small size. The arch code may decide to not activate such a node. However, currently the early boot code sets N_HIGH_MEMORY for such nodes. These nodes therefore seem to be active although these nodes have no present pages. -- 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/