From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 978F4B70A3 for ; Fri, 17 Sep 2010 07:52:44 +1000 (EST) Subject: Re: Reserved pages in PowerPC From: Benjamin Herrenschmidt To: Ankita Garg In-Reply-To: <20100916120806.GJ2332@in.ibm.com> References: <20100916052311.GC2332@in.ibm.com> <1284631464.30449.85.camel@pasglop> <20100916120806.GJ2332@in.ibm.com> Content-Type: text/plain; charset="UTF-8" Date: Fri, 17 Sep 2010 07:52:31 +1000 Message-ID: <1284673951.30449.93.camel@pasglop> Mime-Version: 1.0 Cc: linuxppc-dev@ozlabs.org, linux-mm@kvack.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Thu, 2010-09-16 at 17:38 +0530, Ankita Garg wrote: > Thanks Ben for taking a look at this. So I checked the rtas messages > on > the serial console and see the following: > > instantiating rtas at 0x000000000f632000... done > > Which does not correspond to the higher addresses that I see as > reserved > (observation on a 16G machine). Well, I'd suggest you audit prom_init.c which builds the reserve map, and the various memblock_reserve() calls in prom.c Cheers, Ben.