From owner-freebsd-newbies@FreeBSD.ORG Wed Oct 29 14:14:16 2003 Return-Path: Delivered-To: freebsd-newbies@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0966816A4CE for ; Wed, 29 Oct 2003 14:14:16 -0800 (PST) Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.126.184]) by mx1.FreeBSD.org (Postfix) with ESMTP id B252A43F93 for ; Wed, 29 Oct 2003 14:14:14 -0800 (PST) (envelope-from sven@yagonna.de) Received: from [212.227.126.161] (helo=mrelayng.kundenserver.de) by moutng.kundenserver.de with esmtp (Exim 3.35 #1) id 1AEyZy-0006o4-00 for freebsd-newbies@freebsd.org; Wed, 29 Oct 2003 23:14:14 +0100 Received: from [80.146.23.159] (helo=moonrise.intern.yagonna.de) by mrelayng.kundenserver.de with asmtp (Exim 3.35 #1) id 1AEyZx-0001mk-00 for freebsd-newbies@freebsd.org; Wed, 29 Oct 2003 23:14:14 +0100 Received: by moonrise.intern.yagonna.de (Postfix, from userid 501) id 853D5284E2; Wed, 29 Oct 2003 23:14:12 +0100 (CET) Date: Wed, 29 Oct 2003 23:14:12 +0100 From: Sven Pfeifer To: freebsd-newbies@freebsd.org Message-ID: <20031029221412.GA7984@yagonna.de> Mail-Followup-To: freebsd-newbies@freebsd.org References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4i X-Organization: YaGonna X-Location: Wuppertal Subject: Re: Hyperthreading in FreeBSD 4.9 X-BeenThere: freebsd-newbies@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: Sven Pfeifer List-Id: Gathering place for new users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Oct 2003 22:14:16 -0000 Hi, John Palmer wrote: > I currently have FreeBSD 4.8 with hyperthreading enabled. I just did a > cvsup to FreeBSD 4.9 and when I do a make buildkernel KERNCONF=FOO I get > an error of unknown option "HTT". Has hyperthreading been disabled in > FreeBSD 4.9? did you read /usr/src/UPDATING ---8<-- 20031022: Support for HyperThread logical CPUs has now been enabled by default. As a result, the HTT kernel option no longer exists. Instead, the logical CPUs are always started so that they can handle interrupts. However, the extra logical CPUs are prevented from executing user processes by default. To enable the logical CPUs, change the value of the machdep.hlt_logical_cpus from 1 to 0. This value can also be set from the loader as a tunable of the same name. -->8--- HTH Cheers Sven -- "640 kB RAM should be enough for everyone" --Bill Gates, 1981 ------------------------------------------------------[rand. sig. #27]