From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751490AbWHNQXm (ORCPT ); Mon, 14 Aug 2006 12:23:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751492AbWHNQXm (ORCPT ); Mon, 14 Aug 2006 12:23:42 -0400 Received: from hera.kernel.org ([140.211.167.34]:20897 "EHLO hera.kernel.org") by vger.kernel.org with ESMTP id S1751490AbWHNQXl (ORCPT ); Mon, 14 Aug 2006 12:23:41 -0400 From: Len Brown Reply-To: Len Brown Organization: Intel Open Source Technology Center To: Keith Owens Subject: Re: HT not active Date: Mon, 14 Aug 2006 12:19:32 -0400 User-Agent: KMail/1.8.2 Cc: Jan Engelhardt , Linux Kernel Mailing List References: <9327.1155557425@ocs10w.ocs.com.au> In-Reply-To: <9327.1155557425@ocs10w.ocs.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200608141219.33205.len.brown@intel.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Monday 14 August 2006 08:10, Keith Owens wrote: > You could also need CONFIG_ACPI, I have > seen HT systems which required ACPI before Linux could see the extra > threads. CONFIG_ACPI=y This is required of all HT systems -- except the odd-bird that enables the siblings in MPS (usually via BIOS settings) in order to trick out some operating systems. dmesg for the system will tell us if ACPI sees the siblings or not. -Len