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,DKIM_SIGNED, DKIM_VALID,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 4C3F8C3E8C5 for ; Wed, 18 Nov 2020 17:59:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D5ED022210 for ; Wed, 18 Nov 2020 17:59:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="iVRwUUiu" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726306AbgKRR66 (ORCPT ); Wed, 18 Nov 2020 12:58:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43270 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725948AbgKRR65 (ORCPT ); Wed, 18 Nov 2020 12:58:57 -0500 Received: from mail-il1-x132.google.com (mail-il1-x132.google.com [IPv6:2607:f8b0:4864:20::132]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 66771C0613D6 for ; Wed, 18 Nov 2020 09:58:56 -0800 (PST) Received: by mail-il1-x132.google.com with SMTP id y18so2749285ilp.13 for ; Wed, 18 Nov 2020 09:58:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=RHM44Z31TODI36NU69HtGTSe77AacSdaBSQlZ2dh504=; b=iVRwUUiu7byXatmGf++o0AyVyDx1MQvIrJACC2AIzhZyyp8WqpUBGs14xhkns7EWjB jkFnG7cfoGjYeC3mgjgvQ8HUn9pA4Nce5vdFIgGwRSAXFTyflZttYGi8ItsadadGqGbx P0YDjf0ZigbYU/sTCc7AZ0xiMA7ALYeETcIXU+nNeNeqhVo2rKE0TU7YqPiTIOrkW3Hx i0ydrImwhfDeUxhWBLp/QeI7EsoGVYqh/CpUUuNG6iMmHLXKD5dsDp6kJf/5nJnIenyZ qcaPUcLDhuexwkaNnUljaN2XVnpAtaqxEge+e4kzSLTD3xxM6P9TygcPU1wUFKtgNlGB bKrg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=RHM44Z31TODI36NU69HtGTSe77AacSdaBSQlZ2dh504=; b=SQcAHYyYf6QrSy9aaXprY1/+ooMF5PyRyaQwmhLvBDMYtrcs69vPXCSiGiDDaTAVPt IVEDbQE0OvIiq+uLfTJcFd0384i9cH+2+xLllVupv3r4G3x7X/uW9R7QUCBshDXqZI0T BYMlbA/WVNPiACcOKc+c4H+kKjZmcFwYFEYT6ztr/WJWz1u3YW7pDPcF4A1dlXRYW+ni awEs4pq/8IjAOZ8O84V+0vFkNxVMpRYDuI3C4Joo2WNo5fgzrXJbFMnPHVwvSoFntTNv pcpewAhM1oLhJjN4dmajpA++CQO3g/Ukm8/pkJ4Xmk6yz/5rwumfZEoFvzDniNKsAu6i Rbwg== X-Gm-Message-State: AOAM533MbE1qdWRGGrixqxHyulLySXRR/k7CAiMwlm7fqFMp/wp5FXwA E/W67d/t4JbvYLnKjJyrmkpSMw== X-Google-Smtp-Source: ABdhPJxfwFRR1SLojQ3KKE3pug8dRlj88nDvok5Zl2mi48hZHoqSW0y/Eq4zHC6qyDgBniyKUSa33A== X-Received: by 2002:a92:5f03:: with SMTP id t3mr18332882ilb.25.1605722335675; Wed, 18 Nov 2020 09:58:55 -0800 (PST) Received: from [192.168.1.30] ([65.144.74.34]) by smtp.gmail.com with ESMTPSA id o3sm13877329ilk.27.2020.11.18.09.58.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 18 Nov 2020 09:58:55 -0800 (PST) Subject: Re: INFO: task can't die in io_sq_thread_stop To: Xiaoguang Wang , syzbot , io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk References: <00000000000038569805b4211287@google.com> <39be8d01-6550-ee8a-5a8d-2707b372b711@linux.alibaba.com> From: Jens Axboe Message-ID: Date: Wed, 18 Nov 2020 10:58:54 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/17/20 8:27 PM, Xiaoguang Wang wrote: > hi, > > A gentle reminder, in case you overlooked this syzbot report. Did see it (and your reply), was hoping you'd send an actual patch for this (nudge, nudge). With luck, maybe we'll see a reproducer out of syzbot at some point too. -- Jens Axboe