From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761481AbYBEVvK (ORCPT ); Tue, 5 Feb 2008 16:51:10 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759559AbYBEVuz (ORCPT ); Tue, 5 Feb 2008 16:50:55 -0500 Received: from pentafluge.infradead.org ([213.146.154.40]:51349 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759513AbYBEVuy convert rfc822-to-8bit (ORCPT ); Tue, 5 Feb 2008 16:50:54 -0500 Date: Tue, 5 Feb 2008 13:50:30 -0800 From: Arjan van de Ven To: Eric Dumazet Cc: linux-kernel@vger.kernel.org, mingo@elte.hu, tglx@tglx.de, hpa@zytor.com Subject: Re: [patch] x86: add code to dump the (kernel) page tables for visual inspection Message-ID: <20080205135030.30ea97a9@laptopd505.fenrus.org> In-Reply-To: <47A8CB3C.1090101@cosmosbay.com> References: <20080204222641.4488e6a7@laptopd505.fenrus.org> <47A8CB3C.1090101@cosmosbay.com> Organization: Intel X-Mailer: Claws Mail 3.2.0 (GTK+ 2.12.3; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 05 Feb 2008 21:46:52 +0100 Eric Dumazet wrote: > Arjan van de Ven a écrit : > > Subject: x86: add code to dump the (kernel) page tables for visual > > inspection by kernel developers From: Arjan van de Ven > > > > > > This patch adds code to the kernel to have an (optional) > > /proc/kernel_page_tables debug file that basically dumps the kernel > > pagetables; this allows us kernel developers to verify that nothing > > fishy is going on and that the various mappings are set up > > correctly. This was quite useful in finding various > > change_page_attr() bugs, and is very likely to be useful in the > > future as well. > > > > Seems nice Arjan, but could we also add NUMA information ? > ok maybe I'm missing something, but the kernel VA space currently is totally not numa dependent in any shape or form... so can you explain what kind of information you're looking for? (I guess I just don't really understand your request; can you expand a bit on it?) -- If you want to reach me at my work email, use arjan@linux.intel.com For development, discussion and tips for power savings, visit http://www.lesswatts.org