From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262099AbVG1SQh (ORCPT ); Thu, 28 Jul 2005 14:16:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261870AbVG1SOI (ORCPT ); Thu, 28 Jul 2005 14:14:08 -0400 Received: from serv01.siteground.net ([70.85.91.68]:62948 "EHLO serv01.siteground.net") by vger.kernel.org with ESMTP id S261889AbVG1SOB (ORCPT ); Thu, 28 Jul 2005 14:14:01 -0400 Date: Thu, 28 Jul 2005 11:14:21 -0700 From: Ravikiran G Thirumalai To: Dave Hansen Cc: Andrew Morton , Linux Kernel Mailing List , linux-mm , shai@scalex86.org Subject: Re: [patch] mm: Ensure proper alignment for node_remap_start_pfn Message-ID: <20050728181421.GA3842@localhost.localdomain> References: <20050728004241.GA16073@localhost.localdomain> <20050727181724.36bd28ed.akpm@osdl.org> <20050728013134.GB23923@localhost.localdomain> <1122571226.23386.44.camel@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1122571226.23386.44.camel@localhost> User-Agent: Mutt/1.4.2.1i X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - serv01.siteground.net X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [0 0] / [47 12] X-AntiAbuse: Sender Address Domain - scalex86.org X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jul 28, 2005 at 10:20:26AM -0700, Dave Hansen wrote: > On Wed, 2005-07-27 at 18:31 -0700, Ravikiran G Thirumalai wrote: > > On Wed, Jul 27, 2005 at 06:17:24PM -0700, Andrew Morton wrote: > > > Ravikiran G Thirumalai wrote: > > > > > > Yes, it does cause a crash. > > I don't know of any NUMA x86 sub-arches that have nodes which are > aligned on any less than 2MB. Is this an architecture that's supported > in the tree, today? SRAT need not guarantee any alignment at all in the memory affinity structure (the address in 64-bit byte address). And yes, there are x86-numa machines that run the latest kernel tree and face this problem. Thanks, Kiran