From owner-freebsd-bugs@FreeBSD.ORG Sun Feb 19 23:10:01 2012 Return-Path: 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 6C9061065673 for ; Sun, 19 Feb 2012 23:10:01 +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 28D5D8FC15 for ; Sun, 19 Feb 2012 23:10:01 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.5/8.14.5) with ESMTP id q1JNA1Ti067518 for ; Sun, 19 Feb 2012 23:10:01 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.5/8.14.5/Submit) id q1JNA1Jn067517; Sun, 19 Feb 2012 23:10:01 GMT (envelope-from gnats) Resent-Date: Sun, 19 Feb 2012 23:10:01 GMT Resent-Message-Id: <201202192310.q1JNA1Jn067517@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, Stefan Krueger Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 67D421065673 for ; Sun, 19 Feb 2012 23:09:00 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 52E968FC12 for ; Sun, 19 Feb 2012 23:09:00 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id q1JN906m023932 for ; Sun, 19 Feb 2012 23:09:00 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id q1JN8x2S023927; Sun, 19 Feb 2012 23:09:00 GMT (envelope-from nobody) Message-Id: <201202192309.q1JN8x2S023927@red.freebsd.org> Date: Sun, 19 Feb 2012 23:09:00 GMT From: Stefan Krueger To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/165303: CPU freq changing not supported on VIA VE-900 (Nano X2 L4050) 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: Sun, 19 Feb 2012 23:10:01 -0000 >Number: 165303 >Category: kern >Synopsis: CPU freq changing not supported on VIA VE-900 (Nano X2 L4050) >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Feb 19 23:10:00 UTC 2012 >Closed-Date: >Last-Modified: >Originator: Stefan Krueger >Release: FreeBSD 9.0-REL >Organization: >Environment: >Description: There's no dev.cpu.0.freq sysctl even though there's a dev.cpu.0.freq_levels sysctl, thus powerd does not work thus CPU freq changing is not supported on Via Nano X2 CPUs. # sysctl dev.cpu dev.cpu.0.%desc: ACPI CPU dev.cpu.0.%driver: cpu dev.cpu.0.%location: handle=\_PR_.P001 dev.cpu.0.%pnpinfo: _HID=none _UID=0 dev.cpu.0.%parent: acpi0 dev.cpu.0.freq_levels: 1400/0 1200/0 1000/0 800/0 dev.cpu.0.cx_supported: C1/1 dev.cpu.0.cx_lowest: C1 dev.cpu.0.cx_usage: 100.00% last 2430us dev.cpu.1.%desc: ACPI CPU dev.cpu.1.%driver: cpu dev.cpu.1.%location: handle=\_PR_.P002 dev.cpu.1.%pnpinfo: _HID=none _UID=0 dev.cpu.1.%parent: acpi0 dev.cpu.1.cx_supported: C1/1 dev.cpu.1.cx_lowest: C1 dev.cpu.1.cx_usage: 100.00% last 58451us >How-To-Repeat: Start powerd on a Via Nano x2 L4050 and notice no freq. changes are done despite: # dmesg | grep est est0: on cpu0 est1: on cpu1 and # sysctl dev.cpu.0.freq_levels dev.cpu.0.freq_levels: 1400/0 1200/0 1000/0 800/0 >Fix: >Release-Note: >Audit-Trail: >Unformatted: