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 378EB3CA4AD for ; Fri, 29 May 2026 11:31:47 +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=1780054308; cv=none; b=axqNFw8YuonR0H5R9Fn9JarMHU99thsj1QnjBUHzLKbX2rFq0GWry05ISdIx2DspscrtXBXfHPMQRvFrVEyNQHDBcWOR492wlsaodGwIPWFcRndIbh7ojrwjXsnAQCj/Wx9T8/fWMlZww0yZPDWozVhTBCE5NZDggYRUtVMJ5gI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780054308; c=relaxed/simple; bh=kts4Hx7wCVKuqkxIsRh3p7N+pKju6YYHuZIB9F9mqYc=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=Z6l679cjpbZPO1whowzZLFUC1smm3U03xPbDSROAn2G0HUO4iQOz76ol1rbyxTwhXfg5OmumR5ESm2AFhbr2VIzIzlHF+fe0P4kHrzb7oTLuuzyZdIPBevbb+LJ6JWm3R1z1exvzgrQaMvc5rsp5x2wF3Bmm56Axs47JqbTMpLs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PqLniu8/; 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="PqLniu8/" Received: by smtp.kernel.org (Postfix) with ESMTPS id 784E2C2BCC9 for ; Fri, 29 May 2026 11:31:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1780054307; bh=kts4Hx7wCVKuqkxIsRh3p7N+pKju6YYHuZIB9F9mqYc=; h=From:To:Subject:Date:In-Reply-To:References:From; b=PqLniu8/CBhjCaNHR5HjXqac58rJNIqiGTDo6n1edotePOpiUCv3YbvCu2Fa2K/u4 Q3MzwlO8FWR4qpHV5XHJDk32FaK6gP/4LwH4NKrEB0ElRictXo6gMiYN3KkM3FQ9ZT dx4iMFqSyPafdYwv2E43m0jDxPhs6xwMeijMYFlYt8dkdO9N5E96oa6LtcdPVrKjZi a2VAOXft2xJeLew5PZLPtNPqNEIde+idpVy1AnaYfsLTg7poqgFmUyQN2Q7anpqO2Q t5+q3NGmWyJkEXCVMt3kcTWviv+eAqbaXp9zthWV2olf225i/qcFgqzhB8nk1A2J58 SG/quemJ0mtyA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 6529FC4160E; Fri, 29 May 2026 11:31:47 +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: Fri, 29 May 2026 11:31:47 +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 #25 from Sergey (sergeyluashkov@gmail.com) --- (In reply to The Linux kernel's regression tracker (Thorsten Leemhuis) from comment #24) > (In reply to Mario Limonciello (AMD) from comment #22) > > If I understood the root cause I would have a better answer for you. >=20 > One more question then, if I may: does a bisection make sense, or are thi= ngs > just to messy/complicated due to the other fixes in this area (or if, how= to > best approach one given those fixes? apply them at each step without > committing them?)? >=20 > Side note: Alex, Sergey, you both seems to have Asus laptops, wondering if > that's part of the problem here. I can't say for sure, but I can test the 7.1-rc5 kernel on a mini PC with an AMD Ryzen 9 7945HX this weekend and report back here if there are any issue= s. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=