From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262171AbVFHLXg (ORCPT ); Wed, 8 Jun 2005 07:23:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262172AbVFHLXg (ORCPT ); Wed, 8 Jun 2005 07:23:36 -0400 Received: from pilet.ens-lyon.fr ([140.77.167.16]:43932 "EHLO relaissmtp.ens-lyon.fr") by vger.kernel.org with ESMTP id S262171AbVFHLXd (ORCPT ); Wed, 8 Jun 2005 07:23:33 -0400 Message-ID: <42A6D521.606@ens-lyon.org> Date: Wed, 08 Jun 2005 13:23:13 +0200 From: Brice Goglin User-Agent: Mozilla Thunderbird 1.0.2 (X11/20050331) X-Accept-Language: fr, en MIME-Version: 1.0 To: Johannes Stezenbach Cc: Linus Torvalds , Kernel Mailing List Subject: Re: Linux v2.6.12-rc6 References: <20050607091144.GA5701@linuxtv.org> <20050608111503.GA5777@linuxtv.org> In-Reply-To: <20050608111503.GA5777@linuxtv.org> X-Enigmail-Version: 0.91.0.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Johannes Stezenbach a écrit : > Johannes Stezenbach wrote: > >>Hype-threading stopped working for me (probably due to >>me not enabling ACPI). dmesg output and .config attached. >>-rc5 worked fine. The board is an Asus P4P800-Deluxe. >> >>dmesg: WARNING: 1 siblings found for CPU0, should be 2 > > > Indeed SMT works fine if I enable ACPI. > Is SMT without ACPI not supported? > > Johannes You can pass acpi=ht into the kernel command line to disable ACPI except the minimum required to get HT support. >>From Documentation/kernel-parameters.txt: acpi= [HW,ACPI] Advanced Configuration and Power Interface ... ht -- run only enough ACPI to enable Hyper Threading Brice