From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265109AbTLCSrF (ORCPT ); Wed, 3 Dec 2003 13:47:05 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265111AbTLCSrF (ORCPT ); Wed, 3 Dec 2003 13:47:05 -0500 Received: from stinkfoot.org ([65.75.25.34]:2694 "EHLO stinkfoot.org") by vger.kernel.org with ESMTP id S265109AbTLCSrD (ORCPT ); Wed, 3 Dec 2003 13:47:03 -0500 Message-ID: <3FCE2F8E.90104@stinkfoot.org> Date: Wed, 03 Dec 2003 13:46:38 -0500 From: Ethan Weinstein User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.5) Gecko/20031007 X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: HT apparently not detected properly on 2.4.23 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, With 2.4.22, my Supermicro X5DPL-iGM-O (E7501 chipset) with 2 xeons@2.4ghz and hypertherading enabled shows 4 cpu's in /proc/cpuinfo|proc/interrupts, with: CONFIG_ACPI=y CONFIG_ACPI_HT_ONLY=y The same config with 2.4.23 only shows 2 cpus, even with: CONFIG_NR_CPUS=4 Also, I believe this has been reported before, but the system only seems to interrupt on CPU0 with either kernel, unless I apply a patch I found here: http://www.hardrock.org/kernel/2.4.22/irqbalance-2.4.22-MRC.patch or run the `irqbalance' program.. which I don't care to do. This problem _seems_ to be isolated to the Supermicro, as HT does seem properly detected on several other SMP systems I have at work (compaq ML370/ML380) with 2.4.23 -Ethan