From owner-freebsd-current@FreeBSD.ORG Tue Jul 1 15:56:31 2008 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 82EBA106566C for ; Tue, 1 Jul 2008 15:56:31 +0000 (UTC) (envelope-from freebsd-current@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id 168878FC0A for ; Tue, 1 Jul 2008 15:56:30 +0000 (UTC) (envelope-from freebsd-current@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1KDiDS-00015O-Ua for freebsd-current@freebsd.org; Tue, 01 Jul 2008 15:56:27 +0000 Received: from 213.202.123.89 ([213.202.123.89]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 01 Jul 2008 15:56:26 +0000 Received: from ivoras by 213.202.123.89 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 01 Jul 2008 15:56:26 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-current@freebsd.org From: Ivan Voras Date: Tue, 01 Jul 2008 17:56:18 +0200 Lines: 52 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 213.202.123.89 User-Agent: Thunderbird 1.5.0.14 (Windows/20071210) X-Enigmail-Version: 0.94.1.0 Sender: news Subject: 6-core CPU detection problem X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Jul 2008 15:56:31 -0000 Hi, I have a chance, for a few hours, to test a machine build upon Xeon MP "Dunnington" CPUs, with 2 CPUs with 6 core each (2x6). Everything works fine except that only 4 cores are activated from each CPU: CPU: Genuine Intel(R) CPU @ 2.13GHz (2133.35-MHz K8-class CPU) Origin = "GenuineIntel" Id = 0x106d0 Stepping = 0 Features=0xbfebfbff Features2=0xce33d> AMD Features=0x20100800 AMD Features2=0x1 Cores per package: 6 usable memory = 8576860160 (8179 MB) avail memory = 8281669632 (7898 MB) ACPI APIC Table: <111607 APIC1739> 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: 8 cpu5 (AP): APIC ID: 9 cpu6 (AP): APIC ID: 10 cpu7 (AP): APIC ID: 11 Note that it detects 6 cores per package (which is correct) but then proceeds to say 8 CPUs total are detected. Entire dmesg is here: http://people.freebsd.org/~ivoras/dmesg/mp6-dmesg.txt Output of mptable is also missing the CPUs: -- Processors: APIC ID Version State Family Model Step Flags 0 0x14 BSP, usable 6 13 0 0xbfebfbff 8 0x14 AP, usable 6 13 0 0xbfebfbff 1 0x14 AP, usable 6 13 0 0xbfebfbff 2 0x14 AP, usable 6 13 0 0xbfebfbff 3 0x14 AP, usable 6 13 0 0xbfebfbff 9 0x14 AP, usable 6 13 0 0xbfebfbff 10 0x14 AP, usable 6 13 0 0xbfebfbff 11 0x14 AP, usable 6 13 0 0xbfebfbff -- If any quick fixes are found within the next few hours, I can test them. This is 7-STABLE.