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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 97E93C433DB for ; Thu, 18 Feb 2021 16:31:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 434F764EAD for ; Thu, 18 Feb 2021 16:31:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233608AbhBRQae (ORCPT ); Thu, 18 Feb 2021 11:30:34 -0500 Received: from www262.sakura.ne.jp ([202.181.97.72]:59594 "EHLO www262.sakura.ne.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230257AbhBRNlK (ORCPT ); Thu, 18 Feb 2021 08:41:10 -0500 Received: from fsav303.sakura.ne.jp (fsav303.sakura.ne.jp [153.120.85.134]) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTP id 11IDdc1x049492; Thu, 18 Feb 2021 22:39:38 +0900 (JST) (envelope-from penguin-kernel@i-love.sakura.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav303.sakura.ne.jp (F-Secure/fsigk_smtp/550/fsav303.sakura.ne.jp); Thu, 18 Feb 2021 22:39:38 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/550/fsav303.sakura.ne.jp) Received: from [192.168.1.9] (M106072142033.v4.enabler.ne.jp [106.72.142.33]) (authenticated bits=0) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTPSA id 11IDdXjU049179 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NO); Thu, 18 Feb 2021 22:39:38 +0900 (JST) (envelope-from penguin-kernel@i-love.sakura.ne.jp) Subject: Re: circular submissions in cdc-wdm and how to break them on disconnect To: Oliver Neukum Cc: linux-usb@vger.kernel.org References: <3dfe07c7ad08d4dfd7eac7bd54e6b821319abe90.camel@suse.com> <2db36d52015b644cc1891fcffc87ef09c2b728b7.camel@suse.com> From: Tetsuo Handa Message-ID: <6e2e6b35-5d7c-57fa-5b44-9a07a024ce4b@i-love.sakura.ne.jp> Date: Thu, 18 Feb 2021 22:39:31 +0900 User-Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 MIME-Version: 1.0 In-Reply-To: <2db36d52015b644cc1891fcffc87ef09c2b728b7.camel@suse.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On 2021/02/18 21:55, Oliver Neukum wrote: > Could you test whether the attached patch fixes your issue? "INFO: task hung in wdm_flush" was fixed on 2020/11/16 12:12, and as far as I know syzbot is not reporting any problem with this driver. I don't have issues regardless of your patch. I can't test your patch. > URBs with thos callbacks. This needs to be blocked, stopped s/thos/those/