From owner-freebsd-hardware@FreeBSD.ORG Fri Jan 29 23:38:54 2010 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D10C5106566B for ; Fri, 29 Jan 2010 23:38:54 +0000 (UTC) (envelope-from hoang.v.d@creativesolutions.at) Received: from west.smtp.exch021.serverdata.net (hub021-nj-4.exch021.serverdata.net [206.225.164.219]) by mx1.freebsd.org (Postfix) with ESMTP id 7F0198FC0A for ; Fri, 29 Jan 2010 23:38:54 +0000 (UTC) Received: from MBX021-E2-NJ-5.exch021.domain.local ([169.254.7.11]) by HUB021-NJ-4.exch021.domain.local ([10.240.4.39]) with mapi; Fri, 29 Jan 2010 15:28:51 -0800 From: "Hoang V.D. | Creative Solutions GmbH" To: "freebsd-hardware@freebsd.org" Thread-Topic: FreeBSD 8.0, Intel Xeon E5530, Dell R410, only 2 cores available Thread-Index: AcqhOrx/G8GKs9gGTfi/PH73nxAYOQ== Date: Fri, 29 Jan 2010 23:28:17 +0000 Message-ID: <65BCAB515656D34AA48B0E713966CC83046A64@MBX021-E2-NJ-5.exch021.domain.local> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-cr-hashedpuzzle: AaTV CEXi DLHI D1CC FJ+Y FVNT GRBN GoI5 HPHQ HYAO HoBz Ioqa IvSN Ix2C MEag Mp16; 1; ZgByAGUAZQBiAHMAZAAtAGgAYQByAGQAdwBhAHIAZQBAAGYAcgBlAGUAYgBzAGQALgBvAHIAZwA=; Sosha1_v1; 7; {494EE44D-8839-4AC7-80C5-11E19848DFF5}; aABvAGEAbgBnAC4AdgAuAGQAQABjAHIAZQBhAHQAaQB2AGUAcwBvAGwAdQB0AGkAbwBuAHMALgBhAHQA; Fri, 29 Jan 2010 23:28:18 GMT; RgByAGUAZQBCAFMARAAgADgALgAwACwAIABJAG4AdABlAGwAIABYAGUAbwBuACAARQA1ADUAMwAwACwAIABEAGUAbABsACAAUgA0ADEAMAAsACAAbwBuAGwAeQAgADIAIABjAG8AcgBlAHMAIABhAHYAYQBpAGwAYQBiAGwAZQA= x-cr-puzzleid: {494EE44D-8839-4AC7-80C5-11E19848DFF5} Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: FreeBSD 8.0, Intel Xeon E5530, Dell R410, only 2 cores available X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 Jan 2010 23:38:54 -0000 Hello, We just purchased a Dell PowerEdge R410 server with this CPU: Intel Xeon Pr= ocessor E5530 http://ark.intel.com/Product.aspx?id=3D37103 According to specs the CPU has 4 cores, 8 Hyper-Threading threads, however = after installing=20 FreeBSD 8.0 (amd64), only 2 cores (4 SMT threads) were recognized by the ke= rnel. Here is the relevant dmesg extract: ----------------- Copyright (c) 1992-2009 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 8.0-RELEASE-p2 #0: Tue Jan 5 21:11:58 UTC 2010 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: Intel(R) Xeon(R) CPU E5530 @ 2.40GHz (2394.01-MHz K8-class = CPU) Origin =3D "GenuineIntel" Id =3D 0x106a5 Stepping =3D 5 Features=3D0xbfebfbff Features2=3D0x9ce3bd AMD Features=3D0x28100800 AMD Features2=3D0x1 TSC: P-state invariant real memory =3D 8589934592 (8192 MB) avail memory =3D 8247111680 (7865 MB) ACPI APIC Table: FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs FreeBSD/SMP: 1 package(s) x 2 core(s) x 2 SMT threads cpu0 (BSP): APIC ID: 16 cpu1 (AP): APIC ID: 17 cpu2 (AP): APIC ID: 18 cpu3 (AP): APIC ID: 19 ioapic1: Changing APIC ID to 1 ioapic0 irqs 0-23 on motherboard ioapic1 irqs 32-55 on motherboard ... ----------------- We was expecting to see "1 package(s) x 4 core(s) x 2 SMT threads" and 8 us= able "cpus"=20 Instead. According to sysctl: kern.smp.cpus: 4 kern.smp.maxcpus: 32 hw.ncpu: 4 machdep.hlt_cpus: 0 We have made no change to the BIOS settings (all settings are set by defaul= t by Dell). Could anyone help us with an explanation for this issue?=20 Best regards, Hoang V.D.