From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A837DC433ED for ; Mon, 19 Apr 2021 21:18:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 720B0611EE for ; Mon, 19 Apr 2021 21:18:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234559AbhDSVSf (ORCPT ); Mon, 19 Apr 2021 17:18:35 -0400 Received: from mail.kernel.org ([198.145.29.99]:37982 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229776AbhDSVSd (ORCPT ); Mon, 19 Apr 2021 17:18:33 -0400 Received: by mail.kernel.org (Postfix) with ESMTPS id 47FC061107 for ; Mon, 19 Apr 2021 21:18:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1618867083; bh=vokZMsLifdaiyQIyRo1sUA1EkIhxOnfhzlkS8SRwtbM=; h=From:To:Subject:Date:From; b=VSTL1pIZMy9Bck1SgvZ/eMkGSM2fvygubkrGbL7KMMLLjwKS7jvjJpjnW9riMWe0T TnmrNhgGKHhj62EBJLAjCDQdgdezTEc7t0gQTbuASNcfSw9LfCLccfkvRgVuUgjz24 2rYPlGiEV2nLhmNHlYDCH5k39nfmJF7P8NyrLtN6dHYDjylHjWKQahS7cXMwmvbAGA Fl0rcXYWcFaPXGaSdjYXDnByIsyimqEW1CzNPnlKvte4zOziUsKOonX4RKxuj+ufZM hTMJO5EuGU3f4fMCrVCjzISH5HPJe+itj99hnhq/YNV9srwRkFmc7oSxkYHppdk6Ts M39BbLwxE0+gA== From: bugzilla-daemon@bugzilla.kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 212725] New: USB CDC ACM device stop working Date: Mon, 19 Apr 2021 21:18:02 +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: high X-Bugzilla-Who: stefan@agner.ch X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version cf_kernel_version rep_platform op_sys cf_tree 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 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D212725 Bug ID: 212725 Summary: USB CDC ACM device stop working Product: Drivers Version: 2.5 Kernel Version: 5.11.15 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: USB Assignee: drivers_usb@kernel-bugs.kernel.org Reporter: stefan@agner.ch Regression: No When trying to use USB CDC ACM devices (open using screen) opening fails and the kernel dmesg shows the following error: kernel: cdc_acm 1-3.3.3:1.0: acm_port_activate - usb_submit_urb(ctrl irq) failed This happens with STM32 microcontroller based device as well as a Segger JT= AG adapter, so it seems not device related. The issue must have been introduced recently (within the last month) as those devices used to work previously. I can reproduce the issue also with latest LTS kernel release 5.10.31. Builds: - 5.10.31-1-lts - 5.11.15-arch1-2 --=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.=