Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932396AbVKURjA (ORCPT ); Mon, 21 Nov 2005 12:39:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932398AbVKURjA (ORCPT ); Mon, 21 Nov 2005 12:39:00 -0500 Received: from ppp-217-133-42-200.cust-adsl.tiscali.it ([217.133.42.200]:37926 "EHLO opteron.random") by vger.kernel.org with ESMTP id S932396AbVKURi7 (ORCPT ); Mon, 21 Nov 2005 12:38:59 -0500 Date: Mon, 21 Nov 2005 18:38:55 +0100 From: Andrea Arcangeli To: Andi Kleen Cc: linux-kernel@vger.kernel.org, Andrew Morton Subject: Re: disable tsc with seccomp Message-ID: <20051121173855.GI14746@opteron.random> References: <20051105134727.GF18861@opteron.random> <200511051712.09280.ak@suse.de> <20051105163134.GC14064@opteron.random> <200511051804.08306.ak@suse.de> <20051106015542.GE14064@opteron.random> <20051121164349.GE14746@opteron.random> <20051121170517.GA20775@brahms.suse.de> <20051121171616.GH14746@opteron.random> <20051121172444.GB20775@brahms.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20051121172444.GB20775@brahms.suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 901 Lines: 23 On Mon, Nov 21, 2005 at 06:24:44PM +0100, Andi Kleen wrote: > I don't believe theoretical, unlikely to be usable in any way Demonstrate it if you can. The fact is that the closest thing to a demonstration that we have, demonstrated the opposite of what you claim, so you'll have an hard time to convince me about your point given you've no way to demonstrate it. I can guarantee that my machine is safe by running top, the only thing that escapes the easy "top" check is CPUShare and I want to fix it, since I can. > And in addition your change doesn't even close that channel > in theory. The the PCE is red herring, since it's a zero-cost addition. - 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/