From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.3 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,FREEMAIL_REPLYTO_END_DIGIT, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 93F45C35646 for ; Fri, 21 Feb 2020 17:29:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 74CCB222C4 for ; Fri, 21 Feb 2020 17:29:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726672AbgBUR3h (ORCPT ); Fri, 21 Feb 2020 12:29:37 -0500 Received: from mga06.intel.com ([134.134.136.31]:34939 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726408AbgBUR3g (ORCPT ); Fri, 21 Feb 2020 12:29:36 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Feb 2020 09:29:36 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,469,1574150400"; d="scan'208";a="316112658" Received: from linux.intel.com ([10.54.29.200]) by orsmga001.jf.intel.com with ESMTP; 21 Feb 2020 09:29:36 -0800 Received: from abityuts-desk1.fi.intel.com (abityuts-desk1.fi.intel.com [10.237.68.148]) by linux.intel.com (Postfix) with ESMTP id 0C6505803FA; Fri, 21 Feb 2020 09:29:34 -0800 (PST) Message-ID: <39fb762880c27da110086741315ca8b111d781cd.camel@gmail.com> Subject: Not readable 'scaling_governor' From: Artem Bityutskiy Reply-To: dedekind1@gmail.com To: Linux PM Mailing List Cc: "Rafael J.Wysocki" Date: Fri, 21 Feb 2020 19:29:33 +0200 Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.32.5 (3.32.5-1.fc30) MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Hi, in the latest Linus's kernel this file is not readable: $ cat /sys/devices/system/cpu/cpu91/cpufreq/scaling_governor cat: /sys/devices/system/cpu/cpu91/cpufreq/scaling_governor: Invalid argument I did not try to bisect, and it must be bug. Known issue? I checked this commit: ca7e1fd1026c Thanks, Artem.