From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761759AbZBMGPo (ORCPT ); Fri, 13 Feb 2009 01:15:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761636AbZBMGPY (ORCPT ); Fri, 13 Feb 2009 01:15:24 -0500 Received: from fgwmail5.fujitsu.co.jp ([192.51.44.35]:47551 "EHLO fgwmail5.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761616AbZBMGPV (ORCPT ); Fri, 13 Feb 2009 01:15:21 -0500 From: KOSAKI Motohiro To: KAMEZAWA Hiroyuki Subject: Re: [PATCH 2/2] fix memmap init for handling memory hole Cc: kosaki.motohiro@jp.fujitsu.com, "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "akpm@linux-foundation.org" , davem@davemlloft.net, heiko.carstens@de.ibm.com, Mel Gorman In-Reply-To: <20090212162421.65bb7aa2.kamezawa.hiroyu@jp.fujitsu.com> References: <20090212161920.deedea35.kamezawa.hiroyu@jp.fujitsu.com> <20090212162421.65bb7aa2.kamezawa.hiroyu@jp.fujitsu.com> Message-Id: <20090213151455.77CE.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.50 [ja] Date: Fri, 13 Feb 2009 15:15:14 +0900 (JST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > From: KAMEZAWA Hiroyuki > > Now, early_pfn_in_nid(PFN, NID) may returns false if PFN is a hole. > and memmap initialization was not done. This was a trouble for > sparc boot. > > To fix this, the PFN should be initialized and marked as PG_reserved. > This patch changes early_pfn_in_nid() return true if PFN is a hole. > > Signed-off-by: KAMEZAWA Hiroyuki at least, this patch works fine on my ia64 box. Tested-by: KOSAKI Motohiro