From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932781AbXCEN5J (ORCPT ); Mon, 5 Mar 2007 08:57:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932713AbXCEN5J (ORCPT ); Mon, 5 Mar 2007 08:57:09 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:54258 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932697AbXCEN5H (ORCPT ); Mon, 5 Mar 2007 08:57:07 -0500 Date: Mon, 5 Mar 2007 14:48:54 +0100 From: Ingo Molnar To: Andi Kleen Cc: Avi Kivity , Andrew Morton , linux-kernel@vger.kernel.org, Roland McGrath , Rusty Russell Subject: Re: [patch] paravirt: VDSO page is essential Message-ID: <20070305134854.GA31542@elte.hu> References: <20070305120631.GA14105@elte.hu> <45EC0EB7.7080300@qumranet.com> <20070305142820.GD22829@bingen.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070305142820.GD22829@bingen.suse.de> User-Agent: Mutt/1.4.2.2i X-ELTE-VirusStatus: clean 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=BAYES_00 autolearn=no SpamAssassin version=3.0.3 -2.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Andi Kleen wrote: > The problem is not the syscall instruction, but some problem with the > way the vDSO mapping is set up with CONFIG_PARAVIRT that broke older > glibc. the problem is that CONFIG_PARAVIRT silently turns off CONFIG_COMPAT_VDSO, which of course breaks 'old' glibc. This too is a must-have fix for v2.6.21. Ingo