Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932385AbVKURQV (ORCPT ); Mon, 21 Nov 2005 12:16:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932388AbVKURQU (ORCPT ); Mon, 21 Nov 2005 12:16:20 -0500 Received: from ppp-217-133-42-200.cust-adsl.tiscali.it ([217.133.42.200]:35856 "EHLO opteron.random") by vger.kernel.org with ESMTP id S932390AbVKURQT (ORCPT ); Mon, 21 Nov 2005 12:16:19 -0500 Date: Mon, 21 Nov 2005 18:16:16 +0100 From: Andrea Arcangeli To: Andi Kleen Cc: linux-kernel@vger.kernel.org, Andrew Morton Subject: Re: disable tsc with seccomp Message-ID: <20051121171616.GH14746@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> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20051121170517.GA20775@brahms.suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1009 Lines: 21 On Mon, Nov 21, 2005 at 06:05:17PM +0100, Andi Kleen wrote: > On Mon, Nov 21, 2005 at 05:43:49PM +0100, Andrea Arcangeli wrote: > > Since there was no feedback to my last post, I assume you agree, so > > please backout the tsc disable so then I can plug the performane counter > > disable on top of it (at zero additional runtime cost). > > Sorry I don't agree. You've the config option, turn that off on your systems, what's the problem with that? Or does this mean I need to ship kernels myself with covert channels made mathematically impossible with seccomp enabled? I'd rather avoid having to ship special kernels to run CPUShare as safely as physically possible. My time is already too short, so I hope I won't have to take care of this additional burden. - 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/