From owner-freebsd-stable@FreeBSD.ORG Thu Feb 19 23:30:21 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 609A71065675 for ; Thu, 19 Feb 2009 23:30:21 +0000 (UTC) (envelope-from freebsd-stable@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id E52EB8FC20 for ; Thu, 19 Feb 2009 23:30:20 +0000 (UTC) (envelope-from freebsd-stable@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1LaILQ-0001Ne-RO for freebsd-stable@freebsd.org; Thu, 19 Feb 2009 23:30:16 +0000 Received: from 200.41.broadband11.iol.cz ([90.178.41.200]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 19 Feb 2009 23:30:16 +0000 Received: from gamato by 200.41.broadband11.iol.cz with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 19 Feb 2009 23:30:16 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-stable@freebsd.org From: martinko Date: Fri, 20 Feb 2009 00:30:04 +0100 Lines: 63 Message-ID: References: <499C4E8E.1020403@denninger.net> <200902182230.n1IMUg78008294@lava.sentex.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 200.41.broadband11.iol.cz User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.8.1.18) Gecko/20081125 SeaMonkey/1.1.13 In-Reply-To: <200902182230.n1IMUg78008294@lava.sentex.ca> Sender: news Subject: What is the real number of CPUs ? -- was: Re: Problem with new Intel DX board and i7 Processor on reboot attempt (locks) 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: Thu, 19 Feb 2009 23:30:21 -0000 Mike Tancsa wrote: > At 01:08 PM 2/18/2009, Karl Denninger wrote: >> Running 7-STABLE, compiled last night. >> >> When attempting to reboot the system freezes at "stopping other CPUs" >> and has to be hard-reset with either the power button or the RESET >> switch. The problem is easily reproduced - typing "reboot" produces >> it :-) >> >> I'm wondering if that ACPI warning in the boot sequence is involved in >> this, and if so, if there is a recommended workaround? >> >> Here's the "dmesg" from the subject system: > > Hi, > I have the same chipset, but dont see the reboot problem on > RELENG_7 from Jan 7th. (via "shutdown -r now") Have you checked for > BIOS updates ? > > ---Mike > > > CPU: Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz (2666.77-MHz > 686-class CPU) > Origin = "GenuineIntel" Id = 0x106a4 Stepping = 4 > > Features=0xbfebfbff > HTT,TM,PBE> > > Features2=0x98e3bd > > AMD Features=0x28100000 > AMD Features2=0x1 > Cores per package: 8 > Logical CPUs per core: 2 > real memory = 3212734464 (3063 MB) > avail memory = 3139563520 (2994 MB) > ACPI APIC Table: > FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs > cpu0 (BSP): APIC ID: 0 > cpu1 (AP): APIC ID: 1 > cpu2 (AP): APIC ID: 2 > cpu3 (AP): APIC ID: 3 > cpu4 (AP): APIC ID: 4 > cpu5 (AP): APIC ID: 5 > cpu6 (AP): APIC ID: 6 > cpu7 (AP): APIC ID: 7 > ACPI Warning (tbfadt-0505): Optional field "Pm2ControlBlock" has zero > address or length: 0 450/0 [20070320] > ioapic0 irqs 0-23 on motherboard > Hi, I don't get the numbers of CPUs -- AFAIK Core i7 has 4 cores with 2 logical CPUs per core (hyper-threading?) and that makes 8 logical CPUs. Above I see 8 cores per package (!) _but_ 8 x 2 = 16 while only 8 CPUs are detected and started. Could someone explain pls ? Cheers, M.