Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932203AbWAYWw7 (ORCPT ); Wed, 25 Jan 2006 17:52:59 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932205AbWAYWw7 (ORCPT ); Wed, 25 Jan 2006 17:52:59 -0500 Received: from ms-smtp-02.texas.rr.com ([24.93.47.41]:36021 "EHLO ms-smtp-02-eri0.texas.rr.com") by vger.kernel.org with ESMTP id S932203AbWAYWw6 (ORCPT ); Wed, 25 Jan 2006 17:52:58 -0500 Date: Wed, 25 Jan 2006 16:52:36 -0600 From: Dave McCracken To: Ray Bryant cc: Robin Holt , Hugh Dickins , Linux Kernel , Linux Memory Management Subject: Re: [PATCH/RFC] Shared page tables Message-ID: In-Reply-To: <200601251648.58670.raybry@mpdtxmail.amd.com> References: <200601241743.28889.raybry@mpdtxmail.amd.com> <07A9BE6C2CADACD27B259191@[10.1.1.4]> <200601251648.58670.raybry@mpdtxmail.amd.com> X-Mailer: Mulberry/4.0.0b4 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 636 Lines: 18 --On Wednesday, January 25, 2006 16:48:58 -0600 Ray Bryant wrote: > Empirically, at least on Opteron, it looks like the first page of pte's > is never shared, even if the alignment of the mapped region is correct > (i. e. a 2MB boundary for X86_64). Is that what you expected? If the region is aligned it should be shared. I'll investigate. Thanks, 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/