From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265988AbUBPXCJ (ORCPT ); Mon, 16 Feb 2004 18:02:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266016AbUBPXBG (ORCPT ); Mon, 16 Feb 2004 18:01:06 -0500 Received: from aun.it.uu.se ([130.238.12.36]:5082 "EHLO aun.it.uu.se") by vger.kernel.org with ESMTP id S266011AbUBPW7N (ORCPT ); Mon, 16 Feb 2004 17:59:13 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16433.19261.280849.983457@alkaid.it.uu.se> Date: Mon, 16 Feb 2004 23:59:09 +0100 From: Mikael Pettersson To: Tetsuji Rai Cc: linux-kernel@vger.kernel.org Subject: Re: Cannot enable APIC with 2.6.2 In-Reply-To: <403101BA.1060202@yahoo.com> References: <403101BA.1060202@yahoo.com> X-Mailer: VM 7.17 under Emacs 20.7.1 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Tetsuji Rai writes: > I enabled APIC in config file of kernel 2.6.2, however APIC is not enabled > on boot. I'm sure APIC is enabled on my machine by BIOS, because I > confirmed it with WIndows XP. What's wrong with my settings? Or it's a > bug of kernel?.....I suspect my config should be wrong..... "APIC" here means I/O-APIC. The local APIC is Ok according to the dmesg log. > # CONFIG_SMP is not set > # CONFIG_PREEMPT is not set > CONFIG_X86_UP_APIC=y > CONFIG_X86_UP_IOAPIC=y > CONFIG_X86_LOCAL_APIC=y This part is fine. > CONFIG_MTRR=y But here the .config ends, so we can't tell if ACPI is enabled or not. > -----dmesg----- The kernel found no MP tables. The only chance left to enable the I/O-APIC is for you to configure ACPI and pray it works on your machine. (BTW, you're overclocking your P4 by about 8%.)