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 70E25328B52 for ; Tue, 4 Nov 2025 13:56:25 +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=1762264585; cv=none; b=rxBeW7DheKsCoDBrFde9DR4hovk7LkGZxYrL2FWRyQH7zMlbckfKclwHklHkDVdnzysl/dUc5Um+aR+jZQcxlhy6tArvqrzoDEH4qxI1HGejeqitS2DbnQXkcYxlRlyXiHl1rD2eAnjmizuBQA3wVHpiubmkV+tbseUEP6HnX6o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762264585; c=relaxed/simple; bh=ON9Xwwa6YRLAwjqlOjOKf11KP6Gq4UoxydPsFMEQAL0=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=ABbHdIM3R6/LtY0Q5Apsz18WtFkp9CvcclvzNh8BU2pbf+JprNkEfuizSO+wcaS1WVXFWNhFLj0qzNBV5A/H2Yu9QIvS6TojmD848nvwg3I7YDawwcSxS8/93YH12SGSHSj59/z1+YO/bG80jXOXMUmqOcA6JJ1p6FGtzQDutXY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YjJ9+vF/; 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="YjJ9+vF/" Received: by smtp.kernel.org (Postfix) with ESMTPS id 11AD7C19422 for ; Tue, 4 Nov 2025 13:56:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762264585; bh=ON9Xwwa6YRLAwjqlOjOKf11KP6Gq4UoxydPsFMEQAL0=; h=From:To:Subject:Date:In-Reply-To:References:From; b=YjJ9+vF/jKXBJyKw/MHu0pnAGIdkhc/IGLsju/O9nAg8d+/M2fLI4rJdG/GVYKwEf VHuOVRPQ0UeDK/ud1w7pxv1CiwZZ9Jgb0wlCHyW47x00/+E7lNGOn1syknMbWS1jyE BpIcD7vYJz7b1qbIxeMR2rddrDJdXgxU6oOKKDTYEUfYnCKXZDdziV4DcOwKOWpjpE BA31eFH9s2gz4ariPHQyu9DmhdBm0k+KpNRAOZwswmzP1r+CrtM8ixjN3anWOC6RqK rltHekFfk7FB/UBi7G8kkc9xWp3lg0bFJrsXQXRWZFS+pg6g1SRRV2gpwJmC9zL16h pyv+yVjLfQ+sA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 0CABDC4160E; Tue, 4 Nov 2025 13:56:25 +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 13:56:24 +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: mario.limonciello@amd.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=3D220715 --- Comment #19 from Mario Limonciello (AMD) (mario.limonciello@amd.com) --- I believe there are (at least) two issues leading to the same behavior. Can you please try Gautham's patch plus this one on 6.17? diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c index ab4651205e8ad..6da278e398943 100644 --- a/drivers/acpi/cppc_acpi.c +++ b/drivers/acpi/cppc_acpi.c @@ -460,7 +460,7 @@ bool acpi_cpc_valid(void) if (acpi_disabled) return false; - for_each_present_cpu(cpu) { + for_each_online_cpu(cpu) { cpc_ptr =3D per_cpu(cpc_desc_ptr, cpu); if (!cpc_ptr) return false; --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=