From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 349781EEA5D; Thu, 6 Nov 2025 15:23:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.14 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762442597; cv=none; b=mdAuTuE6pRpYtr+9rhFcNQ2ziLWqlX6GPJcvrEsQvPcyPE3ArVB9VSL2glbmzGOgzgROsOX/lUtbDBgSNylebO/dzCA7Fg41v3w3pkjawYG3M5UDJ92v4pGAGcz08/aS5tTKzu3b8yBwYHFMe1JmVhz+gl9Z3tzTPN5v0dzGf+E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762442597; c=relaxed/simple; bh=8rLgUPOR8E20yMDM0k3KiaiNTkBo2G8LCQ43Qy2tGr0=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=BwCAyAcsG8I0EZYO2MDVLg895dvHcnqwplMcpxUbl1yft3Jyw3ZRdxMBo6ey4ahbk7pv+QlcFM7VrxIpAnoLc7gEmf5pZf9cOCQyuvCgy86SSywgc+/KDDfT1xjFW9k3O7qQCFIK+8WW2rADH8I5MMSlqnKLs/y3FJFQT61cwi8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=fjgpfyVn; arc=none smtp.client-ip=198.175.65.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="fjgpfyVn" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1762442595; x=1793978595; h=message-id:subject:from:to:cc:date:in-reply-to: references:mime-version; bh=8rLgUPOR8E20yMDM0k3KiaiNTkBo2G8LCQ43Qy2tGr0=; b=fjgpfyVnH58Qn+mr4e7R54K85g/UEW1sfSwo2Y2ghnaQiWgm7tTOTAG6 blHDOOgsuXFto66/Vy2qZz0/lY9KNVbATUI+GVTSv0w56kTo8nd/nZFq1 OcqJepw/BPbxKUZBNPX0h7PyDS9jbhyESlJosqnmHfE/QYtGhJl9Tn9UT lxjjOApFgc4dYCCxEgf2iGk+DcdfTHWjgW4vfBp8bRpmxiFEdmKv4xY+N t6THs+HrT7YIgdjFRHJ6pJonwmNqWHqtXQd6DNaEpxG3BATZE5lTHVVvR OlUtn84B91wNo2aCunJl8yaLc4r5sqr9lzl2H7UGP9opsBPlCAOxaW3LB g==; X-CSE-ConnectionGUID: P11XMnkRTfOQqs2J6FK1yg== X-CSE-MsgGUID: 3zk2MINYQVSkeLR8NCnykQ== X-IronPort-AV: E=McAfee;i="6800,10657,11531"; a="68419838" X-IronPort-AV: E=Sophos;i="6.17,312,1747724400"; d="scan'208,223";a="68419838" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by orvoesa106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Nov 2025 07:23:14 -0800 X-CSE-ConnectionGUID: GVB1ZkyuTUSZtamOqDBi4w== X-CSE-MsgGUID: tivEWLwMRBWUdH7AlB1K/Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,284,1754982000"; d="scan'208,223";a="187941968" Received: from spandruv-desk2.jf.intel.com ([10.88.27.176]) by orviesa008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Nov 2025 07:23:15 -0800 Message-ID: Subject: Re: [REGRESSION] Intel Turbo Boost stuck disabled on some Clevo machines (was: [PATCH] cpufreq: intel_pstate: Unchecked MSR aceess in legacy mode) From: srinivas pandruvada To: Aaron Rainbolt Cc: "Rafael J. Wysocki" , viresh.kumar@linaro.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, mmikowski@kfocus.org Date: Thu, 06 Nov 2025 07:23:14 -0800 In-Reply-To: <20250910153329.10dcef9d@kf-m2g5> References: <20250429210711.255185-1-srinivas.pandruvada@linux.intel.com> <20250910113650.54eafc2b@kf-m2g5> <20250910153329.10dcef9d@kf-m2g5> Content-Type: multipart/mixed; boundary="=-v2j8C3jhV+V4YO2nDGiS" User-Agent: Evolution 3.56.2 (3.56.2-2.fc42) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 --=-v2j8C3jhV+V4YO2nDGiS Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Aaron, On Wed, 2025-09-10 at 15:33 -0500, Aaron Rainbolt wrote: > On Wed, 10 Sep 2025 10:15:00 -0700 > srinivas pandruvada wrote: >=20 > > On Wed, 2025-09-10 at 11:36 -0500, Aaron Rainbolt wrote: > > > On Wed, 30 Apr 2025 16:29:09 +0200 > > > "Rafael J. Wysocki" wrote: > > > =C2=A0=20 > > > > On Tue, Apr 29, 2025 at 11:07=E2=80=AFPM Srinivas Pandruvada > > > > wrote:=C2=A0=20 > > > > >=20 > > > > > When turbo mode is unavailable on a Skylake-X system, > > > > > executing > > > > > the > > > > > command: > > > > > "echo 1 > /sys/devices/system/cpu/intel_pstate/no_turbo" > > > > > results in an unchecked MSR access error: WRMSR to 0x199 > > > > > (attempted to write 0x0000000100001300). Please try the attached patch, if this address this issue. 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