From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265415AbUBIUoR (ORCPT ); Mon, 9 Feb 2004 15:44:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265423AbUBIUoR (ORCPT ); Mon, 9 Feb 2004 15:44:17 -0500 Received: from pool-64-222-172-33.man.east.verizon.net ([64.222.172.33]:966 "EHLO mx.wuff.dhs.org") by vger.kernel.org with ESMTP id S265415AbUBIUoQ (ORCPT ); Mon, 9 Feb 2004 15:44:16 -0500 Subject: HT CPU handling - 2.6.2 From: Hod McWuff To: linux-kernel@vger.kernel.org Content-Type: text/plain Content-Transfer-Encoding: 7bit Message-Id: <1076359454.32765.5.camel@siberian.wuff.dhs.org> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 Date: Mon, 09 Feb 2004 15:44:14 -0500 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I've got a 2.0A GHz P4, advertised as non-hyperthread, that seems to be reporting the presence of a second CPU. It also seems to be disabled by setting bit 7 of its ID. I've tried compiling with support for 130 CPU's and nothing changed. What would have to be done to get this disabled CPU half back online? Feb 9 04:45:03 pug ACPI: Local APIC address 0xfee00000 Feb 9 04:45:03 pug ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) Feb 9 04:45:03 pug Processor #0 15:2 APIC version 20 Feb 9 04:45:03 pug ACPI: LAPIC (acpi_id[0x02] lapic_id[0x81] disabled) Feb 9 04:45:03 pug Processor #129 invalid (max 16) Feb 9 04:45:03 pug ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1]) Feb 9 04:45:03 pug ACPI: LAPIC_NMI (acpi_id[0x02] dfl dfl lint[0x1])