From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753503Ab2APH6m (ORCPT ); Mon, 16 Jan 2012 02:58:42 -0500 Received: from mx3.mail.elte.hu ([157.181.1.138]:60417 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753420Ab2APH6l (ORCPT ); Mon, 16 Jan 2012 02:58:41 -0500 Date: Mon, 16 Jan 2012 08:58:22 +0100 From: Ingo Molnar To: xiyou.wangcong@gmail.com Cc: linux-kernel@vger.kernel.org, Andrew Morton , Yinghai Lu , Tejun Heo , ianfang.cn@gmail.com, Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, Konrad Rzeszutek Wilk , Stefano Stabellini Subject: Re: [Patch] x86, mm: fix the size calculation of mapping tables Message-ID: <20120116075822.GI15641@elte.hu> References: <1326628602-27442-1-git-send-email-xiyou.wangcong@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1326628602-27442-1-git-send-email-xiyou.wangcong@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=AWL,BAYES_00 autolearn=no SpamAssassin version=3.3.1 -2.0 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] 0.0 AWL AWL: From: address is in the auto white-list Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * xiyou.wangcong@gmail.com wrote: > For machine enables PSE, the first 2/4M memory region still uses > 4K pages, so needs more PTEs in this case, but find_early_table_space() > doesn't count this. This patch fixes it. > > Cc: Yinghai Lu > Cc: Tejun Heo > Cc: ianfang.cn@gmail.com > Signed-off-by: WANG Cong What were the symptoms of this bug - or have you found it via review only? Thanks, Ingo