From owner-freebsd-net@FreeBSD.ORG Sun Nov 6 12:06:03 2005 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2641616A41F; Sun, 6 Nov 2005 12:06:03 +0000 (GMT) (envelope-from vaibhave@cs.utah.edu) Received: from mail-svr1.cs.utah.edu (mail-svr1.cs.utah.edu [155.98.64.200]) by mx1.FreeBSD.org (Postfix) with ESMTP id 14F4043D67; Sun, 6 Nov 2005 12:06:02 +0000 (GMT) (envelope-from vaibhave@cs.utah.edu) Received: from localhost (localhost [127.0.0.1]) by mail-svr1.cs.utah.edu (Postfix) with ESMTP id 8AAA3346E0; Sun, 6 Nov 2005 05:06:01 -0700 (MST) Received: from mail-svr1.cs.utah.edu ([127.0.0.1]) by localhost (mail-svr1.cs.utah.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 07643-02; Sun, 6 Nov 2005 05:06:01 -0700 (MST) Received: from trust.cs.utah.edu (trust.cs.utah.edu [155.98.65.28]) by mail-svr1.cs.utah.edu (Postfix) with ESMTP id 2B1F5346D3; Sun, 6 Nov 2005 05:06:01 -0700 (MST) Received: by trust.cs.utah.edu (Postfix, from userid 4969) id CADDD3F71; Sun, 6 Nov 2005 05:06:00 -0700 (MST) Received: from localhost (localhost [127.0.0.1]) by trust.cs.utah.edu (Postfix) with ESMTP id B40F43F6C; Sun, 6 Nov 2005 05:06:00 -0700 (MST) Date: Sun, 6 Nov 2005 05:06:00 -0700 (MST) From: Vaibhave Agarwal To: current@freebsd.org, freebsd-net@freebsd.org, jhb@freebsd.org In-Reply-To: Message-ID: References: <20051027233636.GA39380@dmw.hopto.org> <20051028105057.J20147@fledge.watson.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: amavisd-new at cs.utah.edu Cc: chmr@edvz.tu-graz.ac.at, chris@gnome.co.uk Subject: Freebsd 6.0 doesnt detect local APIC on a Pentium 3 machine X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Nov 2005 12:06:03 -0000 hi, FreeBSD 6.0 always uses local APIC for the clock. But on my Pentium 3, 850 MHz machine, it doesnt detect local APIC and falls back to using the motherboard clock for the clock interrupts. I figured this out by printing the value of "using_lapic_timer" variable in the sys/i386/isa/clock.c file, which is always 0. But when I use Intel's 3GHz - 64 bit Xeon processor, it detects local APIC and all works fine. Can someone please tell me the reason, why local APIC doesnt work for the Pentium 3 machines ? Or is there a way to fix this ? Thanks vaibhave