From owner-freebsd-bugs@FreeBSD.ORG Thu Mar 25 08:01:02 2010 Return-Path: Delivered-To: freebsd-bugs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 089D3106564A for ; Thu, 25 Mar 2010 08:01:02 +0000 (UTC) (envelope-from bruce@cran.org.uk) Received: from muon.cran.org.uk (unknown [IPv6:2001:470:1f09:679::1]) by mx1.freebsd.org (Postfix) with ESMTP id C1DE98FC0C for ; Thu, 25 Mar 2010 08:01:01 +0000 (UTC) Received: from muon.cran.org.uk (localhost [127.0.0.1]) by muon.cran.org.uk (Postfix) with ESMTP id E3F5D9565; Thu, 25 Mar 2010 08:01:00 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on muon.cran.org.uk X-Spam-Level: X-Spam-Status: No, score=-2.9 required=8.0 tests=AWL,BAYES_00,RDNS_DYNAMIC autolearn=no version=3.2.5 Received: from core.draftnet (87-194-158-129.bethere.co.uk [87.194.158.129]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by muon.cran.org.uk (Postfix) with ESMTPSA; Thu, 25 Mar 2010 08:01:00 +0000 (UTC) From: Bruce Cran To: freebsd-bugs@freebsd.org, Hannes Date: Thu, 25 Mar 2010 08:00:32 +0000 User-Agent: KMail/1.13.1 (FreeBSD/9.0-CURRENT; KDE/4.4.1; amd64; ; ) References: <201003241030.o2OAU4BL035883@freefall.freebsd.org> In-Reply-To: <201003241030.o2OAU4BL035883@freefall.freebsd.org> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Message-Id: <201003250800.32056.bruce@cran.org.uk> Cc: Subject: Re: kern/140361: [cpufreq] speed-stepping broken on PhenomII (acpi?) X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 25 Mar 2010 08:01:02 -0000 On Wednesday 24 March 2010 10:30:04 Hannes wrote: > The following reply was made to PR kern/140361; it has been noted by GNATS. > > From: Hannes > To: bug-followup@freebsd.org > Cc: > Subject: Re: kern/140361: [cpufreq] speed-stepping broken on PhenomII > (acpi?) Date: Wed, 24 Mar 2010 10:27:34 +0000 > > *ping* > > Is there anything I can do to help solve this issue? > (still there on a current RELENG_8) I don't think powerd will change the Cx level by default, but it should change the frequency as reported by dev.cpu.X.freq where X is the CPU number. You should be able to have the Cx levels change by setting dev.cpu.X.cx_lowest to something other than C1, but I think you need to keep CPU 0 at C1 otherwise the system will stop working properly (timings will change). See http://wiki.freebsd.org/TuningPowerConsumption for more details. -- Bruce Cran