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=-14.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham 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 443DEC433B4 for ; Thu, 13 May 2021 21:15:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EE5BB613F2 for ; Thu, 13 May 2021 21:15:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233372AbhEMVQw (ORCPT ); Thu, 13 May 2021 17:16:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49582 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233381AbhEMVQv (ORCPT ); Thu, 13 May 2021 17:16:51 -0400 Received: from mail-wm1-x32b.google.com (mail-wm1-x32b.google.com [IPv6:2a00:1450:4864:20::32b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 529C0C061574; Thu, 13 May 2021 14:15:40 -0700 (PDT) Received: by mail-wm1-x32b.google.com with SMTP id o26-20020a1c4d1a0000b0290146e1feccdaso1565061wmh.0; Thu, 13 May 2021 14:15:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=JBy/O0ZLfy5u8rFBxaqSpqTiaMXG+jNpqopzCnsfGkY=; b=PzKf9qQPySJRpA2r6V70PkjhsEAV0MOiOQyele0GLcd644rLhrRwrqUjzNIGAWL/j7 /ohdpj3F5c0QPnj/rVgM6NW0lMrx/O9M3KtSi4S/XjxbaLToZhmcgw1eO4ohEqNUgTYQ ISMQFGKvorvKhLCZlvcjpf5GyJNw4phDKn6Lp5NjPl1tiihLk3j5xoYHyiu4EJHpg+qo HpXYa0z5qsP2VPeVCWLJj/gyhFYQSnm5CDPw/z4OkgxECR0RKQSsmXTE7QKW7L/IA3GJ Yxu36UnCXqGusbcvkpW22nhB0NkdF8LFANWCvReBb3Lsy9POt+WuhuR3QXZ+15rCawIP /XUA== 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=JBy/O0ZLfy5u8rFBxaqSpqTiaMXG+jNpqopzCnsfGkY=; b=laEbudqwQ4z3/PfhGrw/gheN/V1YdQXliLW5nqoM+hOjOF6dP69miAy4gaknVKqOSg SAe5Ht3eyYFj1/mF6/g0h+wc7iOuTrjzxY0onOqVMBBxZtDSi5xuySsrRbUp2dcMzGDo IWLCc0jz3LQkKjt71STMZCbHWUGcl8/hBSE7bH4JZiHT7/km0sCa8XmtmwVlzB2Pr5u7 eooKkOuZp9WAV3xbrPG+hOicu0yfIIQaKB9nfTy8N2nGjz0oKaS586pZEEkerIHtdZqy V0z8EZ8/OEd1LrMeZRpyF0cB/QzWbiihfIiNDVcubeNigkYgz1+jBVOnl0EA6hNRjfgu DYfw== X-Gm-Message-State: AOAM533b/0GmhkNnPypBn0bvOX2EGLbiYPVXarCyRnRqfZG5u5xrrAOm JwOYalFPo/RvcbF8nZ0jakQ= X-Google-Smtp-Source: ABdhPJw9zhheEHc6WikRvIAR1PV74rFwAGziRAR8X/1APfkslROsPscqZR1qI1q+Cy+yNvyXnj06kw== X-Received: by 2002:a05:600c:4e8e:: with SMTP id f14mr3345672wmq.65.1620940539123; Thu, 13 May 2021 14:15:39 -0700 (PDT) Received: from [192.168.8.197] ([148.252.132.196]) by smtp.gmail.com with ESMTPSA id g66sm3255414wma.11.2021.05.13.14.15.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 13 May 2021 14:15:38 -0700 (PDT) Subject: Re: [syzbot] INFO: task hung in io_ring_exit_work To: syzbot , axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <0000000000002f920305c1c89a25@google.com> From: Pavel Begunkov Message-ID: Date: Thu, 13 May 2021 22:15:32 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: <0000000000002f920305c1c89a25@google.com> 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 5/8/21 3:50 AM, syzbot wrote: > Hello, > > syzbot has tested the proposed patch and the reproducer did not trigger any issue: > > Reported-and-tested-by: syzbot+93f72b3885406bb09e0d@syzkaller.appspotmail.com May still be there but silent because of fixed buffers changes, test with the old behaviour restored #syz test: https://github.com/isilence/linux.git syz_test7 > > Tested on: > > commit: 50b7b6f2 x86/process: setup io_threads more like normal us.. > git tree: git://git.kernel.dk/linux-block io_uring-5.13 > kernel config: https://syzkaller.appspot.com/x/.config?x=f81a36128b448b98 > dashboard link: https://syzkaller.appspot.com/bug?extid=93f72b3885406bb09e0d > compiler: > > Note: testing is done by a robot and is best-effort only. > -- Pavel Begunkov