Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 26 Feb 2003 13:43:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 26 Feb 2003 13:43:06 -0500 Received: from e5.ny.us.ibm.com ([32.97.182.105]:33739 "EHLO e5.ny.us.ibm.com") by vger.kernel.org with ESMTP id convert rfc822-to-8bit; Wed, 26 Feb 2003 13:43:04 -0500 Content-Type: text/plain; charset=US-ASCII From: Andrew Theurer To: Andrew Walrond , "Grover, Andrew" Subject: Re: /proc/cpuinfo shows only 2 processors on dual P4-Xeon system Date: Wed, 26 Feb 2003 12:44:46 -0600 User-Agent: KMail/1.4.3 Cc: linux-kernel@vger.kernel.org References: <3E5D096F.9020308@walrond.org> In-Reply-To: <3E5D096F.9020308@walrond.org> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Message-Id: <200302261244.46635.habanero@us.ibm.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3505 Lines: 88 Does your system BIOS have an option to enable/disable HT support? If it does, make sure it is enabled. I would have expected to see 4 ioapics, but hmm, I don't really know. -Andrew Theurer On Wednesday 26 February 2003 12:37, Andrew Walrond wrote: > Grover, Andrew wrote: > > Enable the ACPI "CPU enumeration only" option. > > Ok - just tried that, but I still see only two processors in cpuinfo > > Any ideas? > > Relevant part of dmesg: > > Using ACPI for processor (LAPIC) configuration information > KERN_INFO Intel MultiProcessor Specification v1.4 > Virtual Wire compatibility mode. > OEM ID: ASUS Product ID: PROD00000000 APIC at: 0xFEE00000 > I/O APIC #8 Version 17 at 0xFEC00000. > I/O APIC #9 Version 17 at 0xFEC01000. > I/O APIC #10 Version 17 at 0xFEC02000. > Enabling APIC mode: Flat. Using 3 I/O APICs > Processors: 4 > Building zonelist for node : 0 > Kernel command line: ro root=/dev/nfs ip=dhcp console=ttyS0,115200n8 > console=tty0 init=/boot/boot.sh > Initializing CPU#0 > PID hash table entries: 4096 (order 12: 32768 bytes) > Detected 2591.629 MHz processor. > Calibrating delay loop... 5111.80 BogoMIPS > Memory: 3100936k/4194304k available (1348k kernel code, 43644k reserved, > 310k data, 304k init, 2228200k highmem) > Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) > Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) > Mount-cache hash table entries: 512 (order: 0, 4096 bytes) > -> /dev > -> /dev/console > -> /root > CPU: Trace cache: 12K uops, L1 D cache: 8K > CPU: L2 cache: 512K > CPU: Physical Processor ID: 0 > CPU: After generic, caps: bfebfbff 00000000 00000000 00000000 > Intel machine check architecture supported. > Intel machine check reporting enabled on CPU#0. > CPU#0: Intel P4/Xeon Extended MCE MSRs (12) available > CPU#0: Thermal monitoring enabled > Machine check exception polling timer started. > Enabling fast FPU save and restore... done. > Enabling unmasked SIMD FPU exception support... done. > Checking 'hlt' instruction... OK. > POSIX conformance testing by UNIFIX > CPU0: Intel(R) Xeon(TM) CPU 2.60GHz stepping 07 > per-CPU timeslice cutoff: 1462.69 usecs. > task migration cache decay timeout: 2 msecs. > enabled ExtINT on CPU#0 > ESR value before enabling vector: 00000000 > ESR value after enabling vector: 00000000 > Booting processor 1/1 eip 2000 > Initializing CPU#1 > masked ExtINT on CPU#1 > ESR value before enabling vector: 00000000 > ESR value after enabling vector: 00000000 > Calibrating delay loop... 5177.34 BogoMIPS > CPU: Trace cache: 12K uops, L1 D cache: 8K > CPU: L2 cache: 512K > CPU: Physical Processor ID: 0 > CPU: After generic, caps: bfebfbff 00000000 00000000 00000000 > Intel machine check architecture supported. > Intel machine check reporting enabled on CPU#1. > CPU#1: Intel P4/Xeon Extended MCE MSRs (12) available > CPU#1: Thermal monitoring enabled > CPU1: Intel(R) Xeon(TM) CPU 2.60GHz stepping 07 > Total of 2 processors activated (10289.15 BogoMIPS). > > - > 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/ - 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/