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 A24FB1FFC6D for ; Tue, 4 Nov 2025 02:53:35 +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=1762224815; cv=none; b=ZAtFcbAAGG+DEyFtC6m9HhIkGGgvbPKosJSrl+dGINwgXd6VJVIoM16JQ6GlRPs2kYqK1q6dndgBtykExVKK4tRxo4cbWdffGQW/HuOSzeAnf503kty7xxtu87tszkqJklimyUMxP1QKBgZ2fRCdijUwO44VjNNPLtXO4baiLEI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762224815; c=relaxed/simple; bh=uu+MdTMRcFKtS7aigUDdX+eCFpsKLhPPGHNqB36gT4w=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=c3HdHIfV/kahjA1QF2AmHxlrDQletJvX37XvEVKP+1zAFU5Kq2SCVLHCpSkKbbSdWIdr39Z6TLs4cvDoZRQwws232HQniwfYdA+FgSAvJzbl2/zFzyC2SQaGhkGf3q01s8ej8YPDH1V5yLwzhxxTV+Uijkw9G70FJ1RxazDeK8c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=sgnE4SHz; 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="sgnE4SHz" Received: by smtp.kernel.org (Postfix) with ESMTPS id 6E5F5C116C6 for ; Tue, 4 Nov 2025 02:53:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762224815; bh=uu+MdTMRcFKtS7aigUDdX+eCFpsKLhPPGHNqB36gT4w=; h=From:To:Subject:Date:In-Reply-To:References:From; b=sgnE4SHzXynn+AC3nRpaO4ZBLiBobb2HnZXpOOxNSQGm6G4k/dAfgHgOeix+WMD9V XS0APYwsjAZBzaxlpAvbEJuEoL/LG7F69aKIkCq6kKS2ATJ/RQDCBA9KIhCWD67GQy o4MkhpK8KsSColVifkJftxDoTnkNDa7Mhj/jFRWpDBM3+36rDbcbXKhRz80WjYFqGz m/jQ99o9DuNRcSUiXDL4sjFRK6mHWIiCPT3slb5dkP3Oj0VTjF4cgBh2QHS2O1hHaz G3x8icrvyWNBdVL/kyRsdqVY3XTT2Z60CBUrCW+ZoqREe9LYceoqhhFXfGcpZP9I2O R3JJJkg26sRdA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 5C486C3279F; Tue, 4 Nov 2025 02:53:35 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-pm@vger.kernel.org Subject: [Bug 220715] [REGRESSION] AMD P-State fails with "_CPC object is not present" on AMD Zen 4 between 6.10 and 6.11 Date: Tue, 04 Nov 2025 02:53:35 +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: chris.harris79@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: attachments.created 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=3D220715 --- Comment #13 from Chris Harris (chris.harris79@gmail.com) --- Created attachment 308888 --> https://bugzilla.kernel.org/attachment.cgi?id=3D308888&action=3Dedit dmesg-6.17-patched-full-debug - Full dmesg output with both acpi/cppc and cpufreq debug enabled - Shows extensive cpufreq initialization debug messages --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=