Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752006AbWHNLie (ORCPT ); Mon, 14 Aug 2006 07:38:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752007AbWHNLie (ORCPT ); Mon, 14 Aug 2006 07:38:34 -0400 Received: from mailer.gwdg.de ([134.76.10.26]:59015 "EHLO mailer.gwdg.de") by vger.kernel.org with ESMTP id S1752006AbWHNLid (ORCPT ); Mon, 14 Aug 2006 07:38:33 -0400 Date: Mon, 14 Aug 2006 13:38:22 +0200 (MEST) From: Jan Engelhardt To: Linux Kernel Mailing List Subject: HT not active Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Spam-Report: Content analysis: 0.0 points, 6.0 required _SUMMARY_ Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1322 Lines: 51 Hello list, I cannot get HT to be used on some machine: w04a# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 0 model name : Intel(R) Pentium(R) 4 CPU 1700MHz stepping : 10 cpu MHz : 1694.890 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm up bogomips : 3393.46 'ht' indicates: #define X86_FEATURE_HT (0*32+28) /* Hyper-Threading */ so I installed an SMP kernel, which has CONFIG_SMP=y CONFIG_SUSPEND_SMP=y CONFIG_X86_FIND_SMP_CONFIG=y CONFIG_SCHED_SMT=y CONFIG_X86_HT=y yet it shows the 'up' flag in cpuinfo #define X86_FEATURE_UP (3*32+ 9) /* smp kernel running on up */ What could be missing? Some BIOS option perhaps? Thanks for any hints. Jan Engelhardt -- - 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/