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 9F4BEC433F5 for ; Sat, 29 Jan 2022 10:01:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244096AbiA2KBz (ORCPT ); Sat, 29 Jan 2022 05:01:55 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50712 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236342AbiA2KBx (ORCPT ); Sat, 29 Jan 2022 05:01:53 -0500 Received: from mail-pl1-x629.google.com (mail-pl1-x629.google.com [IPv6:2607:f8b0:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E826C061714; Sat, 29 Jan 2022 02:01:53 -0800 (PST) Received: by mail-pl1-x629.google.com with SMTP id i1so8326280pla.9; Sat, 29 Jan 2022 02:01:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding:content-language; bh=z8+KRmkxtX9Pn8s0WmoIqShaNO0eoxFTiuBF3Bw+8cE=; b=RzzUdMVC6W4uiMeG42YF6kL1iK/Jq1ElWsmi5uBTYch+feiPjWG8JcJPE1fA6mHzEP 1xsI9YKwFvp3UEmH0K9EHZjeTBFp5BLdPO091gT+Bgkrnk8FxdlU8Gs5P/iA0f4sSOv7 G7mhLB/3FDnYDY2pkQ9ppPmuFM5FBiWhRak/gjtdc5Dc8sB0g65H/IdLeSmHIoIWg1yx mkTHJeQbObqwzXsIOPXcPxOxkwC2BaErbNo2p21yCqFgAoBjDyaUnDnfe0VNuHBgtGsr PfjzbvZBYnARZxwEG+zI+ZuQEtw0206fV8CNFqlXVDUADFoCmWVk6bDguuThxupsE148 8x6Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=z8+KRmkxtX9Pn8s0WmoIqShaNO0eoxFTiuBF3Bw+8cE=; b=35OPRINc6Rx92I6PsA5OBdWf8sO/c+h6cgP2eoW95dwrYNeCMeL5QslyV1H2R+GWag WweBuvdSOVTLZFZUrL3MOJzoDDWEu0126XCUHQxmQLI0FDTF41OPO4AKauaGuNxviLGb j44asEPphfoSFn/j/g8KVYWpic1/xEdV0GoghZAm4WmZSU7MQXqsjQ6xqH1suq3hg0+e Ou7M5WVfNKPB5CoJJ6Tzu2VuJL+wFtKYqYIiLeJmUzrzS1q+PCNQC5jZs9qx1KbxXxVp G6IDCeQBPt5RbndJZRin9nst8mfUD3ZR/kychZaSzF/cFKoJxCzn8qeHPnIuRK8XDO/5 7BNQ== X-Gm-Message-State: AOAM530OHlZfU6YQehJcKlbDG/rLYYXdEMi5YNPsTsP7vD1uvzBKux91 m+iaME7DCnRuimJdPHLU3Qq4Z/zQXV0= X-Google-Smtp-Source: ABdhPJyTq9X/ASMu7i/VjN71kzFwZATO8/myfii0C5pmCteXY0GjxHMwsz0cG6gkADjKYULhxZKDTA== X-Received: by 2002:a17:902:d355:: with SMTP id l21mr11632323plk.128.1643450512221; Sat, 29 Jan 2022 02:01:52 -0800 (PST) Received: from [192.168.1.101] ([166.111.139.99]) by smtp.gmail.com with ESMTPSA id o1sm13040187pfu.88.2022.01.29.02.01.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 29 Jan 2022 02:01:51 -0800 (PST) Subject: Re: [BUG] tty: serial: possible deadlock in uart_remove_one_port() and uart_hangup() To: Greg KH Cc: jirislaby@kernel.org, linux-serial@vger.kernel.org, linux-kernel References: From: Jia-Ju Bai Message-ID: <88c4529d-c3dc-c168-f15b-7ea01ef334cf@gmail.com> Date: Sat, 29 Jan 2022 18:01:50 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2022/1/29 17:57, Greg KH wrote: > On Sat, Jan 29, 2022 at 05:34:05PM +0800, Jia-Ju Bai wrote: >> Hello, >> >> My static analysis tool reports a possible deadlock in the tty driver in >> Linux 5.10: > 5.10 was released over a year ago and over 100 thousand changes ago. > Please redo your check on 5.16 at the oldest. Thanks, Greg. I will redo my check on 5.16. Best wishes, Jia-Ju Bai