From owner-freebsd-bugs@FreeBSD.ORG  Sat Nov  7 15:20:02 2009
Return-Path: <owner-freebsd-bugs@FreeBSD.ORG>
Delivered-To: freebsd-bugs@hub.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 5A5E01065676
	for <freebsd-bugs@hub.freebsd.org>;
	Sat,  7 Nov 2009 15:20:02 +0000 (UTC)
	(envelope-from gnats@FreeBSD.org)
Received: from freefall.freebsd.org (freefall.freebsd.org
	[IPv6:2001:4f8:fff6::28])
	by mx1.freebsd.org (Postfix) with ESMTP id 1D60A8FC12
	for <freebsd-bugs@hub.freebsd.org>;
	Sat,  7 Nov 2009 15:20:02 +0000 (UTC)
Received: from freefall.freebsd.org (localhost [127.0.0.1])
	by freefall.freebsd.org (8.14.3/8.14.3) with ESMTP id nA7FK1bl041236
	for <freebsd-bugs@freefall.freebsd.org>; Sat, 7 Nov 2009 15:20:01 GMT
	(envelope-from gnats@freefall.freebsd.org)
Received: (from gnats@localhost)
	by freefall.freebsd.org (8.14.3/8.14.3/Submit) id nA7FK1u3041235;
	Sat, 7 Nov 2009 15:20:01 GMT (envelope-from gnats)
Resent-Date: Sat, 7 Nov 2009 15:20:01 GMT
Resent-Message-Id: <200911071520.nA7FK1u3041235@freefall.freebsd.org>
Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer)
Resent-To: freebsd-bugs@FreeBSD.org
Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org,
	Hannes <freebsd@soulrebel.in-berlin.de>
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id F1C6C106568B
	for <freebsd-gnats-submit@FreeBSD.org>;
	Sat,  7 Nov 2009 15:16:46 +0000 (UTC)
	(envelope-from nobody@FreeBSD.org)
Received: from www.freebsd.org (www.freebsd.org [IPv6:2001:4f8:fff6::21])
	by mx1.freebsd.org (Postfix) with ESMTP id E172D8FC18
	for <freebsd-gnats-submit@FreeBSD.org>;
	Sat,  7 Nov 2009 15:16:46 +0000 (UTC)
Received: from www.freebsd.org (localhost [127.0.0.1])
	by www.freebsd.org (8.14.3/8.14.3) with ESMTP id nA7FGk1L041188
	for <freebsd-gnats-submit@FreeBSD.org>; Sat, 7 Nov 2009 15:16:46 GMT
	(envelope-from nobody@www.freebsd.org)
Received: (from nobody@localhost)
	by www.freebsd.org (8.14.3/8.14.3/Submit) id nA7FGkJS041187;
	Sat, 7 Nov 2009 15:16:46 GMT (envelope-from nobody)
Message-Id: <200911071516.nA7FGkJS041187@www.freebsd.org>
Date: Sat, 7 Nov 2009 15:16:46 GMT
From: Hannes <freebsd@soulrebel.in-berlin.de>
To: freebsd-gnats-submit@FreeBSD.org
X-Send-Pr-Version: www-3.1
Cc: 
Subject: misc/140361: speed-stepping broken on PhenomII (acpi?)
X-BeenThere: freebsd-bugs@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Bug reports <freebsd-bugs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-bugs>,
	<mailto:freebsd-bugs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-bugs>
List-Post: <mailto:freebsd-bugs@freebsd.org>
List-Help: <mailto:freebsd-bugs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-bugs>,
	<mailto:freebsd-bugs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 07 Nov 2009 15:20:02 -0000


>Number:         140361
>Category:       misc
>Synopsis:       speed-stepping broken on PhenomII (acpi?)
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Nov 07 15:20:01 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Hannes
>Release:        FreeBSD 8-RC2
>Organization:
>Environment:
FreeBSD fbsdmain.lan.home 8.0-RC1 FreeBSD 8.0-RC1 #0: Thu Sep 17 18:50:57 UTC 2009     root@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  amd64
>Description:
I have a new AMD PhenomII X4 (3.0Ghz) CPU. However powerd doesn't automatically reduce the freq.

I suppose this is due to the CPU-Load being incorrectly detected:

> sysctl -a | grep usage
dev.cpu.0.cx_usage: 100.00% last 500us
dev.cpu.1.cx_usage: 100.00% last 500us
dev.cpu.2.cx_usage: 100.00% last 500us
dev.cpu.3.cx_usage: 100.00% last 500us

(these are always 100% although system is mostly idle)

I would really like to be able to reduce freq, for energy, noise/heat and long--livety reasons!

Thank you very much!
>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: