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 91C54C56202 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 22FBA221F8 for ; Wed, 18 Nov 2020 17:59:18 +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 S1726362AbgKRR66 (ORCPT ); Wed, 18 Nov 2020 12:58:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43272 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726306AbgKRR65 (ORCPT ); Wed, 18 Nov 2020 12:58:57 -0500 Received: from mail-il1-x136.google.com (mail-il1-x136.google.com [IPv6:2607:f8b0:4864:20::136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6B5A7C061A48 for ; Wed, 18 Nov 2020 09:58:56 -0800 (PST) Received: by mail-il1-x136.google.com with SMTP id y9so2819707ilb.0 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=TCrRgxYEubIVLgODXexb0pORGPVukkkjhOOBPzBikqQKzZ7VO7qvK0WzlzOKz8xbQS xKvqxRvIOdYoDoyFWaXgnB6I07dxW0UuMeZbRY6RQPIN1R29Ma0Y5vbXFVLgX22kMx9W RFWFiVLPd797/rg9Uns2/+3IcnsqoMQb5YKgygmMDOafYGi6AokwWIAOL2qZr0a0zsYB RLuqak6K9OZ7aMdMcNi3n9eRcL3tmjO8PGpudx+VH8TnlXzIwavhQNkr+Cq69MevOHT4 JkuhKYqYcGF0bUFsd8jRIrdmYb2+Q28S8OlO2/xbH4M16KD8GqMSbDq6dfINmjcbnxLY no1Q== X-Gm-Message-State: AOAM532iZb25c6AfDhDvNw9AIGYnlAhJAI5G4Qank+WptuRysGlLWNDa 1US+SpajOoCPRYXNNUJWUG4B2A== 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: io-uring@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