Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262737AbTFZTT2 (ORCPT ); Thu, 26 Jun 2003 15:19:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262874AbTFZTT1 (ORCPT ); Thu, 26 Jun 2003 15:19:27 -0400 Received: from slimnet.xs4all.nl ([194.109.194.192]:2022 "EHLO gatekeeper.slim") by vger.kernel.org with ESMTP id S262737AbTFZTTX (ORCPT ); Thu, 26 Jun 2003 15:19:23 -0400 Subject: No HT without ACPI? From: Jurgen Kramer To: lkml Content-Type: text/plain Message-Id: <1056656002.3845.10.camel@paragon.slim> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.0 (1.4.0-1) Date: 26 Jun 2003 21:33:22 +0200 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1027 Lines: 34 Hi, I had to disable ACPI on my system because it caused a high load. While rebooting I noticed that the second CPU (P4 HT) wasn't found: CPU: Trace cache: 12K uops, L1 D cache: 8K CPU: L2 cache: 512K CPU: Physical Processor ID: 0 Intel machine check reporting enabled on CPU#0. CPU: After generic, caps: bfebfbff 00000000 00000000 00000000 CPU: Common caps: bfebfbff 00000000 00000000 00000000 CPU0: Intel(R) Pentium(R) 4 CPU 2.60GHz stepping 09 per-CPU timeslice cutoff: 1462.79 usecs. enabled ExtINT on CPU#0 ESR value before enabling vector: 00000000 ESR value after enabling vector: 00000000 Error: only one processor found. WARNING: No sibling found for CPU 0. ENABLING IO-APIC IRQs Is ACPI necessary for HT to work? This is with 2.4.21. Cheers, Jurgen - 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/