From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755571AbYIIL2L (ORCPT ); Tue, 9 Sep 2008 07:28:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751826AbYIIL16 (ORCPT ); Tue, 9 Sep 2008 07:27:58 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:45717 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752682AbYIIL15 (ORCPT ); Tue, 9 Sep 2008 07:27:57 -0400 Date: Tue, 9 Sep 2008 13:27:44 +0200 From: Ingo Molnar To: Alex Nixon Cc: Linux Kernel Mailing List , Jeremy Fitzhardinge Subject: Re: [PATCH] Xen: Fix pte unpin BUG when !CONFIG_SMP Message-ID: <20080909112744.GA9762@elte.hu> References: <1220959508-13806-1-git-send-email-alex.nixon@citrix.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1220959508-13806-1-git-send-email-alex.nixon@citrix.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Alex Nixon wrote: > We still need to pin PTEs, even if there are no PTE locks. Otherwise we'll BUG whenever there aren't > PTE locks (i.e. whenever NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS), as we try to unpin PTEs which were > never pinned in the first place. > > Signed-off-by: Alex Nixon applied to tip/x86/xen, thanks Alex. Ingo