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 991C43C768E for ; Sat, 17 Oct 2026 19:28:20 +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=1792265300; cv=none; b=r3b2mVaXgYgS8Q3qis3HOyWfdg2EGo2THc/tFsl1ZBpEK01C2KWyCzdLvNxX4wFPv45zKQUsb+Gp/6D5oVfbZp+bsYu4+MNIq6XKluyK7lGynk9DxXOhATMMChnraab3GEfHhpbnV+Mf5yL8BFNOfsWyHCWU8yYEC9o0SdGGKeA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792265300; c=relaxed/simple; bh=OsgQcZ4/PBulHvbVN8F9jYjhZtgg6w0doOwZJAIXBuE=; h=From:To:Subject:Date:Message-ID:Content-Type:MIME-Version; b=ZGpJfZvS0TS0m9aOoy8E/XjUvzJvYC1xWNKXc0Uk18IEZS0Y1xIevWztTU0Z8VyGZ9jBoW7nKrtAc+LBXFT7HQUd/CVKNFOAgqkdV8rMO3q6DM0jVS2X8Owii3ti1QDChKKRfh3pbqJbF0H0zHkfMxZcTNlvbPbFe9q0sSjb0+A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GLliXN/T; 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="GLliXN/T" Received: by smtp.kernel.org (Postfix) with ESMTPS id ED658C2BCF5 for ; Sat, 17 Oct 2026 19:28:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1792265300; bh=OsgQcZ4/PBulHvbVN8F9jYjhZtgg6w0doOwZJAIXBuE=; h=From:To:Subject:Date:From; b=GLliXN/TwQ4vmL2IshN5oMOXrTZNQ3VkOTCoOlkdmsugHrRC3ueokhs5PBe7rLA0b LSD4Th+x0ftiGw3RQM3vCGhDBiUnL5zLMkuM1cehk86NPbFFs1DAufVkqNVRLxYDC8 EqqXHo6tqjj1Da2R+yRPwy7oMC3ruhnVzG0iRn88DRSzdhCGotduKMp5MQnm9mH5mR DcSaH4e9LunD2zR7lgeEW9Y2edHAG82t3o8BKNkqEBBmzvp3a058Jjuo5V7k6M2pbW APK5e/1deYbqduJZozaafpRGFAL4WF/L8+VoZfnCDngUmsx9kHLHK8GB7YN+Z0f0DI Cm5M1gB1Hp48w== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id D3A9AC41613; Sat, 17 Oct 2026 19:28:19 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-pm@vger.kernel.org Subject: [Bug 222146] New: 6.18: AMD (Ryzen 5): cannot select existing energy_performance_preference Date: Sat, 17 Oct 2026 19:28:19 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new 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: steffen@sdaoden.eu 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: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter cf_regression Message-ID: 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=3D222146 Bug ID: 222146 Summary: 6.18: AMD (Ryzen 5): cannot select existing energy_performance_preference Product: Power Management Version: 2.5 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P3 Component: cpufreq Assignee: linux-pm@vger.kernel.org Reporter: steffen@sdaoden.eu Regression: No Hello! I sail 6.18.newest and since some weeks (possibly: since "custom", whatever this is, is listed) my self-knitted "cpupower" shell script fails = like so: /root/bin/cpupower.sh: 1: echo: echo: I/O error ERR:CPU 0: write for energy_performance_preference=3Dbalance_performance = failed Ie it cannot set that even though it is reported to exist (the script refet= ches what is available after settings are changed): CPU 0: freq: 406477-3201000; scaling: 406477-3201000; boost:0; gov: power= save (performance powersave); energy: performance (default performance balance_performance balance_power power custom) On the terminal: #?0|lecce:~# cat /sys/devices/system/cpu/cpu0/cpufreq/energy_performance_available_preferenc= es default performance balance_performance balance_power power custom #?0|lecce:~# echo balance_performance > /sys/devices/system/cpu/cpu0/cpufreq/energy_performance_preference -su: echo: write error: Device or resource busy #?1|lecce:~# cat /sys/devices/system/cpu/cpu0/cpufreq/energy_performance_preference performance It works when i switch to all-performance, when i build, for example: CPU 0: freq: 406477-4979334; scaling: 406477-4979334; boost:1; gov: performance (performance powersave); energy: performance (performance) And it worked everwhere just smoothly before. Thanks again, a lot. I love it! --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=