From owner-freebsd-questions@FreeBSD.ORG Mon Jun 16 07:28:24 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AA04837B401 for ; Mon, 16 Jun 2003 07:28:24 -0700 (PDT) Received: from jhuml4.jhu.edu (jhuml4.jhu.edu [128.220.2.67]) by mx1.FreeBSD.org (Postfix) with ESMTP id DC67243FBD for ; Mon, 16 Jun 2003 07:28:23 -0700 (PDT) (envelope-from aap-it@jhu.edu) Received: from jhuml4.jhu.edu (jhuml4.jhu.edu [128.220.2.67]) by jhuml4.jhu.edu (PMDF V6.1 #47563) with SMTP id <0HGK007CMW6594@jhuml4.jhu.edu> for freebsd-questions@FreeBSD.ORG; Mon, 16 Jun 2003 10:28:22 -0400 (EDT) Received: from jhuml4.jhu.edu ([128.220.2.67]) by jhuml4.jhu.edu (SAVSMTP 3.1.0.29) with SMTP id M2003061610282230326 for ; Mon, 16 Jun 2003 10:28:22 -0400 Received: from aapserv (aapserv.pgp.jhu.edu [128.220.89.20]) by jhuml4.jhu.edu (PMDF V6.1 #47563) with SMTP id <0HGK007FMW7A94@jhuml4.jhu.edu> for freebsd-questions@FreeBSD.ORG; Mon, 16 Jun 2003 10:28:22 -0400 (EDT) Date: Mon, 16 Jun 2003 10:28:22 -0400 From: AAP-IT To: freebsd-questions@FreeBSD.ORG Message-id: <002301c33413$8a0d0d40$1459dc80@aap.jhu.edu> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 X-Mailer: Microsoft Outlook Express 6.00.2800.1158 Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 7bit X-Priority: 3 X-MSMail-priority: Normal Subject: SMP+HT Problem X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 16 Jun 2003 14:28:25 -0000 We have a Dell Precision 450 with 2 Xeon processors with HyperThreading turned on. I've recompiled the kernel with SMP and hyperthreading support, and it detects the 4 "CPU"s. However after a soft reboot (ctrl+alt+del or reboot) it only detects 2 of them. I have to do a hard reboot again to make it see all 4 "cpu"s. Here's the message after soft reboot: SMP: AP CPU #1 Launched! And here's the message after a hard reboot: SMP: AP CPU #3 Launched! SMP: AP CPU #1 Launched! SMP: AP CPU #2 Launched! Using 4.8-RELEASE Thanks, Ali