From owner-freebsd-stable@FreeBSD.ORG Fri Jan 27 18:20:11 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BDC0716A420 for ; Fri, 27 Jan 2006 18:20:11 +0000 (GMT) (envelope-from fcash@ocis.net) Received: from smtp.sd73.bc.ca (smtp.sd73.bc.ca [142.24.13.140]) by mx1.FreeBSD.org (Postfix) with ESMTP id C507E43D5A for ; Fri, 27 Jan 2006 18:20:05 +0000 (GMT) (envelope-from fcash@ocis.net) Received: from localhost (localhost [127.0.0.1]) by localhost.sd73.bc.ca (Postfix) with ESMTP id 37DF18A003B for ; Fri, 27 Jan 2006 10:21:28 -0800 (PST) Received: from smtp.sd73.bc.ca ([127.0.0.1]) by localhost (smtp.sd73.bc.ca [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 91728-01-28 for ; Fri, 27 Jan 2006 10:21:22 -0800 (PST) Received: from s157.sbo (s157.sbo [192.168.0.157]) by smtp.sd73.bc.ca (Postfix) with ESMTP id EE94A8A0075 for ; Fri, 27 Jan 2006 10:21:21 -0800 (PST) From: Freddie Cash To: freebsd-stable@freebsd.org Date: Fri, 27 Jan 2006 10:19:58 -0800 User-Agent: KMail/1.9.1 References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200601271019.59088.fcash@ocis.net> X-Virus-Scanned: by amavisd-new using ClamAV at sd73.bc.ca Subject: Re: How do I turn off hyperthreading on 6.0 ? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Jan 2006 18:20:11 -0000 On Friday 27 January 2006 02:16 am, Pete French wrote: > I though that machdep.hyperthreading_allowed had to be set to 1 to > turn on hyperthreading ? I have a dual processor HP blade, and > when I boot it up with an SMP kernel I get 4 CPU's. Setting that flag > does not have any effect! Disable it in the BIOS. The kernel can't use what isn't advertised as available. :) -- Freddie Cash fcash@ocis.net