From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933725AbXLNTxq (ORCPT ); Fri, 14 Dec 2007 14:53:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756823AbXLNTxe (ORCPT ); Fri, 14 Dec 2007 14:53:34 -0500 Received: from www.tglx.de ([62.245.132.106]:42429 "EHLO www.tglx.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755590AbXLNTxd (ORCPT ); Fri, 14 Dec 2007 14:53:33 -0500 Date: Fri, 14 Dec 2007 20:53:18 +0100 (CET) From: Thomas Gleixner To: Andi Kleen cc: Eduard-Gabriel Munteanu , LKML Subject: Re: [PATCH] Option to disable AMD C1E (allows dynticks to work) In-Reply-To: <20071214181022.GA16351@one.firstfloor.org> Message-ID: References: <20071214004442.5f9eba88@linux360.ro> <20071214143941.2c7dcfb4@linux360.ro> <20071214101720.GA10981@one.firstfloor.org> <20071214154106.4f0b2d8c@linux360.ro> <20071214122048.GA12550@one.firstfloor.org> <20071214180119.4c492f6c@linux360.ro> <20071214181022.GA16351@one.firstfloor.org> User-Agent: Alpine 0.99999 (LFD 796 2007-11-08) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 14 Dec 2007, Andi Kleen wrote: > > LAPIC is seemingly disabled (C1E detection code does this), but > > It should only disable the LAPIC timer, but not the full use of the > LAPIC. That's what it does. The LAPIC timer is invalidated and registered as a per CPU broadcast dummy source (CLOCK_EVT_FEAT_DUMMY). Thanks, tglx