Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261240AbVEOUpE (ORCPT ); Sun, 15 May 2005 16:45:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261239AbVEOUob (ORCPT ); Sun, 15 May 2005 16:44:31 -0400 Received: from clock-tower.bc.nu ([81.2.110.250]:6876 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S261237AbVEOUo2 (ORCPT ); Sun, 15 May 2005 16:44:28 -0400 Subject: Re: Hyper-Threading Vulnerability From: Alan Cox To: Arjan van de Ven Cc: Lee Revell , Dave Jones , Matt Mackall , Andy Isaacson , Andi Kleen , "Richard F. Rebel" , Gabor MICSKO , Linux Kernel Mailing List , tytso@mit.edu In-Reply-To: <1116142233.6270.9.camel@laptopd505.fenrus.org> References: <1115963481.1723.3.camel@alderaan.trey.hu> <1116009483.4689.803.camel@rebel.corp.whenu.com> <20050513190549.GB47131@muc.de> <20050513212620.GA12522@hexapodia.org> <20050513215905.GY5914@waste.org> <1116024419.20646.41.camel@localhost.localdomain> <1116025212.6380.50.camel@mindpipe> <20050513232708.GC13846@redhat.com> <1116027488.6380.55.camel@mindpipe> <1116084186.20545.47.camel@localhost.localdomain> <1116088229.8880.7.camel@mindpipe> <1116089068.6007.13.camel@laptopd505.fenrus.org> <1116093396.9141.11.camel@mindpipe> <1116093694.6007.15.camel@laptopd505.fenrus.org> <1116098504.9141.31.camel@mindpipe> <1116100126.6007.17.camel@laptopd505.fenrus.org> <1116114052.9141.38.camel@mindpipe> <1116142233.6270.9.camel@laptopd505.fenrus.org> Content-Type: text/plain Content-Transfer-Encoding: 7bit Message-Id: <1116189693.17990.1.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 (1.4.6-2) Date: Sun, 15 May 2005 21:41:35 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 609 Lines: 15 On Sul, 2005-05-15 at 08:30, Arjan van de Ven wrote: > stop entirely.... (and that is also happening more and more and linux is > getting more agressive idle support (eg no timer tick and such patches) > which will trigger bios thresholds for this even more too. Cyrix did TSC stop on halt a long long time ago, back when it was worth the power difference. Alan - 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/