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 D929E1ADFFB for ; Mon, 23 Dec 2024 20:19:51 +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=1734985191; cv=none; b=IskdiKSqn8G6p0uOPr+4KZxKVaMTq5RYjmoQf7/VpAZL4zJ0S2nIA7pMW9B8QK3Kb4CoDWMbuH2lv1gA3U0x0u+kKlChEQ1Rm2vLQD8kEicIJNiSfyt8dXc09u2JXmGOE/VIK1kbk5i/AYQLgDYA3UAKFeOMbUFHodY3wIdu51s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734985191; c=relaxed/simple; bh=qRAV2AUskVvgfdPH+d3dscTXZnC7+GbkfQKOS36iQ8g=; h=From:To:Subject:Date:Message-ID:Content-Type:MIME-Version; b=E8gPHNcMOrQOlvmTkiZuqSTiHpmnOs11Cf/edsUwbey+jBEZ/uUSbiBAvszW89j/mABpW1epVwLOpBHbmlRPLKsA9XTIVNqmYFqHGfvio63Epyo6b8LUdRdWoVHMPB8gnChwLoqu00SUcw5EY/cAvCOnktaLr1/gqJTO3n4RZr0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Or5a+coK; 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="Or5a+coK" Received: by smtp.kernel.org (Postfix) with ESMTPS id 794E3C4CED3 for ; Mon, 23 Dec 2024 20:19:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1734985191; bh=qRAV2AUskVvgfdPH+d3dscTXZnC7+GbkfQKOS36iQ8g=; h=From:To:Subject:Date:From; b=Or5a+coK9skdDN/awJnAC9qAg53MBkLdbhr1WC88H8gNy7/b0SiLPis6IV/X9YN0r 2P1XDYR5iu7uGFZZ/rgQSxiGiHAWxLLOvJxMRWlzTaKPs2Xf5Ov+yN2JzrVSDeHHT2 CCCST8/25ML86C0egJIuXCvUhs8RJUkMUYgl7r8xyKP/z90zpIhqQ0qqpSkWxmYG99 +r6w4OogF8uWdrJ0gLCNbd3tmyMT0VDtstoFEqLH80s1riGkKpUN8A1dz2upIfaVjx UmJdSQQ7wk9ri04AaP+pCh6C6Bx6WI5SFCKwcsETjuGFNZ8p0jhz64FMg+KSorDrqM xP4gVg6s0JfUg== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 69671C3279E; Mon, 23 Dec 2024 20:19:51 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 219626] New: Infinite udev uevent stream from USB-C port Date: Mon, 23 Dec 2024 20:19:51 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: AssignedTo drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: USB X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: hegel666@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.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 cc cf_regression cf_bisect_commit attachments.created 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-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D219626 Bug ID: 219626 Summary: Infinite udev uevent stream from USB-C port Product: Drivers Version: 2.5 Hardware: Intel OS: Linux Status: NEW Severity: normal Priority: P3 Component: USB Assignee: drivers_usb@kernel-bugs.kernel.org Reporter: hegel666@gmail.com CC: gsara1989@gmail.com Regression: Yes Bisected fa48d7e81624efdf398b990a9049e9cd75a5aead commit-id: Created attachment 307397 --> https://bugzilla.kernel.org/attachment.cgi?id=3D307397&action=3Dedit udevadm monitor output After updating to 6.12.5 from 6.12.4 systemd-udevd worker burns CPU process= ing an infinite stream of USB-C events. In order to reproduce I have to plug off the USB cable and plug it in again. I tried 6.12.6 kernel with the same bug= gy result. The problem disappears after going back to 6.12.4. My machine is an ASUS Zenbook UM5302TA laptop. Reverting this commit fixes the issue: commit c0ca6fd5f6ebde8fc0df8bb5c32629d1284f60d0 Author: Saranya Gopal Date: Fri Aug 30 14:13:42 2024 +0530 usb: typec: ucsi: Do not call ACPI _DSM method for UCSI read operations [ Upstream commit fa48d7e81624efdf398b990a9049e9cd75a5aead ] ACPI _DSM methods are needed only for UCSI write operations and for rea= ding CCI during RESET_PPM operation. So, remove _DSM calls from other places. While there, remove the Zenbook quirk also since the default behavior now aligns with the Zenbook quirk. With this change, GET_CONNECTOR_STAT= US returns at least 6 seconds faster than before in Arrowlake-S platforms. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=