Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 87A5DC433F5 for ; Fri, 26 Nov 2021 18:25:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243957AbhKZS2u (ORCPT ); Fri, 26 Nov 2021 13:28:50 -0500 Received: from mail-oi1-f182.google.com ([209.85.167.182]:43971 "EHLO mail-oi1-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241981AbhKZS0p (ORCPT ); Fri, 26 Nov 2021 13:26:45 -0500 Received: by mail-oi1-f182.google.com with SMTP id o4so20240024oia.10; Fri, 26 Nov 2021 10:23:32 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=wJs4qIzN7tdGNmWLLZgECzleFNg3olCYYbAdn6+WWTc=; b=6T8ZKy+NG2ZIRHIV2ZzSvmXO4sg6DG8DWkbCzJ+WGrnYD0C0vCY8GkPJP44mx05Smx 4Jfdp398eP1fECIVArKfsC+5nYsMy87R95yN0PLS1qyaAcUs4ms1mVZcgD77SeXzyD1f cyUsunXTcqSfAE3ONTvKTDDwBkSZh+El5fINA4QqZ1qNrc6Dz7RR8OCPs4F8eoHbbeYX cwUWevMtcKYo44tlhgukUukfrUUGEyCdLALs/vHUh7I6tQW7c++6pjwZan5mHOogezPb TbBCagRywn1zaFDAViDTTTCsGQ1g72IJ+ynxABR2Q+EtfbW43X3KSKnn9i4gmDGNxJcw skFA== X-Gm-Message-State: AOAM531PlLWZuTJ2Lax7fAcTRpy5Mpb5vVvaZfOYXiSdYm/ZiAltqkXH irA2zxBNsvXju3LQmql4P7MT2XZ1ss4E44gE3kC1NVD4 X-Google-Smtp-Source: ABdhPJzwvmUTZUjytwHBzf5yT8L/DTo17kJm5ogcH2Ay644b3htcu+cr8LWWD5sF4zgQE5f9tTbseeDeb1vLvSFax3w= X-Received: by 2002:a05:6808:14c3:: with SMTP id f3mr24781640oiw.51.1637951012267; Fri, 26 Nov 2021 10:23:32 -0800 (PST) MIME-Version: 1.0 References: <20210401183654.27214-1-daniel.lezcano@linaro.org> <20210401183654.27214-3-daniel.lezcano@linaro.org> <1e75f7ff-4b1b-ff47-2344-903605067693@linaro.org> In-Reply-To: <1e75f7ff-4b1b-ff47-2344-903605067693@linaro.org> From: "Rafael J. Wysocki" Date: Fri, 26 Nov 2021 19:23:21 +0100 Message-ID: Subject: Re: [PATCH v6 3/7] powercap/drivers/dtpm: Simplify the dtpm table To: Daniel Lezcano Cc: Doug Smythies , Linux PM list , Linux Kernel Mailing List , Lukasz Luba , "Rafael J. Wysocki" , Greg Kroah-Hartman Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 26, 2021 at 6:40 PM Daniel Lezcano wrote: > > On 26/11/2021 18:08, Doug Smythies wrote: > > Hi Daniel, > > > > This patch introduces a regression, at least on my test system. > > I can no longer change CPU frequency scaling drivers, for example > > from intel_cpufreq (A.K.A intel_pstate in passive mode) to intel_pstate > > (A.K.A. active mode). The task just hangs forever. > > > > I bisected the kernel and got this commit as the result. > > As a double check, I reverted this commit: > > 7a89d7eacf8e84f2afb94db5ae9d9f9faa93f01c > > on kernel 5.16-rc2 and the issue was resolved. > > > > While your email is fairly old, I observe that it was only included as of > > kernel 5.16-rc1. > > Could it be related to and fixed by: > > https://lore.kernel.org/all/20211108062345.273855-1-daniel.lezcano@linaro.org/ > > ? It seems so, but that patch is present in 5.16-rc2.