Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752602AbcKDXVn (ORCPT ); Fri, 4 Nov 2016 19:21:43 -0400 Received: from mga05.intel.com ([192.55.52.43]:15270 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750763AbcKDXVk (ORCPT ); Fri, 4 Nov 2016 19:21:40 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,445,1473145200"; d="scan'208";a="187813563" From: "Pandruvada, Srinivas" To: "pavel@ucw.cz" CC: "linux-kernel@vger.kernel.org" , "Zhang, Rui" , "linux-pm@vger.kernel.org" , "platform-driver-x86@vger.kernel.org" , "rjw@rjwysocki.net" , "viresh.kumar@linaro.org" , "ibm-acpi-devel@lists.sourceforge.net" , "ibm-acpi@hmh.eng.br" , "linux-acpi@vger.kernel.org" Subject: Re: v4.8-rc1: thinkpad x60: running at low frequency even during kernel build Thread-Topic: v4.8-rc1: thinkpad x60: running at low frequency even during kernel build Thread-Index: AQHSNqR6E9PvsljNE0SLAUXkZpyWbKDJwJWAgAAZhgCAABIcgA== Date: Fri, 4 Nov 2016 23:20:53 +0000 Message-ID: <1478301649.7947.3.camel@intel.com> References: <20161104083849.GA32688@amd> <20161104085830.GA4089@amd> <1478268311.26953.17.camel@intel.com> <20161104204439.GA2581@amd> <20161104221600.GA7007@amd> In-Reply-To: <20161104221600.GA7007@amd> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.255.157.235] Content-Type: text/plain; charset="utf-8" Content-ID: <1E59E90032D8CE4F96D6A4901BCFD67E@intel.com> MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id uA4NM1wV024282 Content-Length: 466 Lines: 23 On Fri, 2016-11-04 at 23:16 +0100, Pavel Machek wrote: > Hi! > [...] > So we seem to have thermal or ACPI regression in v4.9-rc3. > It is possible. Can you add either add printk in acpi_processor_ppc_has_changed() or use ftrace and see do you get to these functions acpi_processor_ppc_init() acpi_processor_ppc_has_changed() acpi_processor_ppc_notifier() ? When temperature limit is reached acpi_processor_ppc_notifier() should be called. Thanks, Srinivas