From owner-freebsd-current Thu Feb 27 10:46:59 2003 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DAEF737B401 for ; Thu, 27 Feb 2003 10:46:57 -0800 (PST) Received: from mail.speakeasy.net (mail11.speakeasy.net [216.254.0.211]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9A4A443FA3 for ; Thu, 27 Feb 2003 10:46:55 -0800 (PST) (envelope-from jhb@FreeBSD.org) Received: (qmail 24410 invoked from network); 27 Feb 2003 18:46:59 -0000 Received: from unknown (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) by mail11.speakeasy.net (qmail-ldap-1.03) with DES-CBC3-SHA encrypted SMTP for ; 27 Feb 2003 18:46:59 -0000 Received: from laptop.baldwin.cx (gw1.twc.weather.com [216.133.140.1]) by server.baldwin.cx (8.12.6/8.12.6) with ESMTP id h1RIjHhT027214; Thu, 27 Feb 2003 13:45:18 -0500 (EST) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.5.2 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <20030226174154.G830-100000@femme> Date: Thu, 27 Feb 2003 13:47:06 -0500 (EST) From: John Baldwin To: Trish Lynch Subject: RE: HyperThreading not working? Cc: freebsd-current@FreeBSD.ORG, Slawek Zak Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On 26-Feb-2003 Trish Lynch wrote: > On Wed, 26 Feb 2003, John Baldwin wrote: > >> >> On 26-Feb-2003 Slawek Zak wrote: >> > Hi, >> > >> > I'm in the process of installing 5.0-RELEASE-p3 on a Dell PowerEdge >> > 2600 server. It has two HyperThreading Xeon 2.4Ghz processors, but >> > HyperThreading is not working in FreeBSD. I guess that four >> > processors should be visible in the system after boot. Yes - I've >> > enabled `Logical Processors' in BIOS. BIOS revision is the latest >> > available. >> > >> > Any thoughts? I attach full dmesg and mptable output. Kernel >> > config too. >> >> 5.0 doesn't support HyperThreading. The upcoming 5.1 and 4.8 releases >> will support it. >> > > it doesn't? I have a 5.0-R box that surely does support HTT. Your motherboard has an extra special BIOS. Most BIOS do not enumerate logical CPU's in the mptable and require the extra patches to work. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message