Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 18 Jul 2002 15:57:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 18 Jul 2002 15:57:56 -0400 Received: from ausadmmsrr503.aus.amer.dell.com ([143.166.83.90]:58888 "HELO AUSADMMSRR503.aus.amer.dell.com") by vger.kernel.org with SMTP id ; Thu, 18 Jul 2002 15:57:55 -0400 X-Server-Uuid: 91331657-2068-4fb8-8b09-a4fcbc1ed29f Message-ID: From: Matt_Domsch@Dell.com To: RSinko@island.com, linux-kernel@vger.kernel.org Subject: RE: Wrong CPU count Date: Thu, 18 Jul 2002 15:00:49 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) X-WSS-ID: 1129C1F93154245-01-01 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1088 Lines: 30 > After upgrading from kernel 2.4.7-10smp to 2.4.9-34smp using > the Red Hat > RPM downloaded from RH Network, the CPU count on the machine > reported by > dmesg and listed in /proc/cpuinfo was 4 rather than the actual 2. > > This has occured on all 4 Dell 2650's that I've installed > this patch on. I > don't have any other mult-processor machines available to > test this with. Congratulations, you purchased a fine PowerEdge 2650 with processors which contain HyperThreading technology. Each physical processor appears as two logical processors. This behaviour is expected, and correct. :-) Thanks, Matt -- Matt Domsch Sr. Software Engineer, Lead Engineer, Architect Dell Linux Solutions www.dell.com/linux Linux on Dell mailing lists @ http://lists.us.dell.com #1 US Linux Server provider for 2001 and Q1/2002! (IDC May 2002) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/