From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 804893A961E for ; Wed, 13 May 2026 18:41:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778697696; cv=none; b=Hm2ZEV9zwaG1f6G23F5Th9HxYDZf1ab8m6xOKHSpo7lssSeZ3lXrII01X1N/IuUACw3nEUdjjP4PviqQXdQf1+jK2O9qBK4BoqWAEod7WuYcMeVERYuuwqhYg8ue5jv1JoBfms5U0A2DKZzmfBPLujGSunVaWiTLhSeD35hpQ20= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778697696; c=relaxed/simple; bh=oIYPe7dGoZNEeceRxMJxjyPBdoxnvOELcZPTwcO9D+E=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=rz5I5U3BYgMv6S+UgMXB+lWd98zxTKmoE2e5VHhulMS8tPu1HsXrfjXU88ot518vjJTWMHWDOPhhrIwoMER9/eqGL8Vo1bgWnfUOdRg0TCLWUNlRxvCTBoPvtM6qjHhrm1JPAbYRYQSq4iUlcvbuUPDJNSv6uTpv3k6dyOyXQDA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WlZlMKej; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WlZlMKej" Received: by smtp.kernel.org (Postfix) with ESMTPS id 79DC9C19425 for ; Wed, 13 May 2026 18:41:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778697695; bh=oIYPe7dGoZNEeceRxMJxjyPBdoxnvOELcZPTwcO9D+E=; h=From:To:Subject:Date:In-Reply-To:References:From; b=WlZlMKejc6Yy7NWeBjKjdqvFuKzS7zK9UXTa0ddlstjUJBOfJjJNwIt/BzzZ8SH2+ 0DywTE3/RSQVi1l9JiqLqeMFsxXEmYhMTav+C2MX81m+2gAkPiT2/fPlHxAYLi71Wd uf8jz0C1NOwnzm/1geLoXfPpi597k5nTV9JULMw/ApnwfmdCUkjxP2Cz5zVtEyg0er YN2nYnB1oJs0yyor+yV9XPR15A63wwnSj63eVNePvVt0ildjQButaYL0FF9sxjgGsW SQO/zO8PLHTumJwN/UnSjc56CFibNKUqRcMsMWK3VPP1GNZ7odsXCD7vG+71xzAYk5 HKivmVe4MydHw== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 6E6FCC41613; Wed, 13 May 2026 18:41:35 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-pm@vger.kernel.org Subject: [Bug 221505] REGRESSION][amd_pstate] "EPP cannot be set under performance policy" (EBUSY) when switching to performance profile via PPD on 7.1 Date: Wed, 13 May 2026 18:41:35 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Power Management X-Bugzilla-Component: cpufreq X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: sergeyluashkov@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: linux-pm@vger.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D221505 --- Comment #8 from Sergey (sergeyluashkov@gmail.com) --- (In reply to Mario Limonciello (AMD) from comment #7) > Can you please pair that patch with the patches on this branch? > https://git.kernel.org/pub/scm/linux/kernel/git/superm1/linux.git/log/?h= =3Damd- > pstate-fixes >=20 > There are multiple bugs at play here. I=E2=80=99ve tested the kernel from your amd-pstate-fixes branch (commit f9= f16835d4dc), but unfortunately, the issues persist, and I=E2=80=99ve discovered a new co= nflict with the ASUS platform driver. Current observations: With amd_dynamic_epp=3Ddisable (or no parameter): The behavior remains identical to the initial report. powerprofilesctl still fails with the error described in the original report (Description). With amd_dynamic_epp=3Denable: It breaks the integration with asus-nb-wmi. Specifically, the /sys/devices/platform/asus-nb-wmi/throttle_thermal_policy (which controls ASUS thermal profiles) stops switching to value 2 (Silent/Power-save mode). When I set "Power-saver" via PPD, it only toggles between 0 and 1. The CPU TDP is not limited to its expected ~55W threshold unless I manually write 2 to the throttle_thermal_policy file. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=