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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 47931C4332F for ; Mon, 5 Dec 2022 16:06:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231592AbiLEQG0 (ORCPT ); Mon, 5 Dec 2022 11:06:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39910 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231319AbiLEQGZ (ORCPT ); Mon, 5 Dec 2022 11:06:25 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CF7BA13FA4 for ; Mon, 5 Dec 2022 08:06:24 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 719CDB8111D for ; Mon, 5 Dec 2022 16:06:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 0FB7EC433C1 for ; Mon, 5 Dec 2022 16:06:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1670256382; bh=/RLC1kpY+Taxubve1f0h1WNrNQkDsXe0LYNvkWI/rQc=; h=From:To:Subject:Date:In-Reply-To:References:From; b=PYSBgjsHPyZFqy4D4fVkjLFUqdxgrdxiJ0emqHRvSBzOvKS24zwfYBivB3IeEdbvy E3yPmU24IttPsZhZHGz2ajx4sSCvwuFsgKHuTZTIjj+qB1qW+TFUqEkEcwa8vpQCCC a2mFZpVOpJ61rgcAN8uGDbOcaEToFLATwbl/RXhvwaxRoZmxSSZK2nLM0q4edAcDJZ t4Doni/lq7q28KQJWK32fG1gfqmzRSZR9rbHgkukYgmb8GYbgNb+D1GlJprLRaPt7s F3YGQYWDR7WKwbFghEFIzNfHfVD+hPYX2eH+/kmT88iLKMQ4AvMuAdz6TZTdebikjC fwh2jf66jFTOQ== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id F28FBC433E4; Mon, 5 Dec 2022 16:06:21 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 216766] USB enumeration lockup Date: Mon, 05 Dec 2022 16:06:21 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed 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: mathias.nyman@linux.intel.com 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: 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 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D216766 --- Comment #6 from Mathias Nyman (mathias.nyman@linux.intel.com) --- But reading usbfs shouldn't block forever either, so there's something else wrong as well. Maybe we fails to give back an URB, or retry reading all the disconnected devices forever. Adding xhci and usb core dynamic debug could show more info about this. before suspeding could you as root add: mount -t debugfs none /sys/kernel/debug echo 'module xhci_hcd =3Dp' >/sys/kernel/debug/dynamic_debug/control echo 'module usbcore =3Dp' >/sys/kernel/debug/dynamic_debug/control --=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.=