Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758493AbXKGRNT (ORCPT ); Wed, 7 Nov 2007 12:13:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754597AbXKGRNJ (ORCPT ); Wed, 7 Nov 2007 12:13:09 -0500 Received: from e3.ny.us.ibm.com ([32.97.182.143]:47683 "EHLO e3.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754250AbXKGRNI (ORCPT ); Wed, 7 Nov 2007 12:13:08 -0500 Subject: Re: [Patch] Allocate sparse vmemmap block above 4G From: Dave Hansen To: Zou Nan hai Cc: LKML , Suresh.b.siddha@intel.com In-Reply-To: <1194419267.3046.1412.camel@linux-znh> References: <1194419267.3046.1412.camel@linux-znh> Content-Type: text/plain Date: Wed, 07 Nov 2007 09:12:30 -0800 Message-Id: <1194455550.7078.58.camel@localhost> Mime-Version: 1.0 X-Mailer: Evolution 2.10.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 560 Lines: 15 On Wed, 2007-11-07 at 15:07 +0800, Zou Nan hai wrote: > Try to allocate sparse vmemmap block above 4G on x64 system. > > On some single node x64 system with huge amount of physical memory e.g > 64G. the memmap size maybe very big. Could we just change the default bootmem behavior to allocate top-down? -- Dave - 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/