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=-12.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 90A0FC433EF for ; Thu, 9 Sep 2021 01:02:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 639CD61157 for ; Thu, 9 Sep 2021 01:02:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348447AbhIIBEB (ORCPT ); Wed, 8 Sep 2021 21:04:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33752 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233477AbhIIBEA (ORCPT ); Wed, 8 Sep 2021 21:04:00 -0400 Received: from mail-il1-x12f.google.com (mail-il1-x12f.google.com [IPv6:2607:f8b0:4864:20::12f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3CA89C061575 for ; Wed, 8 Sep 2021 18:02:52 -0700 (PDT) Received: by mail-il1-x12f.google.com with SMTP id i13so208874ilm.4 for ; Wed, 08 Sep 2021 18:02:52 -0700 (PDT) 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=joAYCX1s0NcXY5IBS4ka+uai7RV9dQVlQDCWgG50rTE=; b=jQ7eYXh1KKYMdtHX5nf+QWn0WGDG4Z68F36Q1ttYyl/Ookoqhnu6CZC4qdDnhbhKxR dDFCuxIABcSgK9MMzK+ioIKmmfL3YQt+HwNvfyeAq2d+2JkommTpMzaL/D87q/p9nnO3 8HHlmLlUS+wkVDsMicsmgq9YBlx3J/orMUjtdb/tFi+Y8Qr2yQ7BjaM2m21ZmbdSyn9x Drn8I/FTBgVdU4Z5AO9jXgjRjBA8LOxq7147pjteW6gISOt+k0A14MgswF0zMlEg0Vxg ZO5eojgJAgMNJBCdTBLNxHVaR+8c9vxXn4DL0jtWfY1vAFlogf76Dq+iJtAuYqe2KjaJ 4I7Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; 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=joAYCX1s0NcXY5IBS4ka+uai7RV9dQVlQDCWgG50rTE=; b=bFf03oYjNaegv/03exFOZIwa+Z32A/63SbLJSdSocQYgFjixzoygWM5s6Y/cYsb0Yp nMmQZpzjp+EmouSUpN+rLMqW7CF8ftMSe9cjc+PwkZZvzFoygDra786WAby20oYx58Wa 4h02wMSeax/8UncSFYUbC5wBKA/RyhS4x8Ps1RQ2twZZ0uiX+KH70YOaVTmIKlDJzXml ZIx1BNrICZ6lTwlXmx6dBPj8X6CbKJpPsU9H5N+/RVWvvKOpXwjiOVr8+ptAp31NgmxS EUm8ufbcQWEp/pMA0iyBMJN5Lbca3B/DOfJFfS8nD9gyZoNOImkWWpZuUoaUUNB4qHoH HIaw== X-Gm-Message-State: AOAM533TXiqNfXTamyBiQQ4Jp3d/l9Qfv8xfJzo1gMUiOfz1cOyhvJYb 6W0JkNTdpFrjFCSBsk4KJj+gIQ== X-Google-Smtp-Source: ABdhPJzuT2OZan5656ISxnout+pffgegRJGaOlg40LZM3WBdTwu12LFimXp8kZdbJRtJZ6owe08g6g== X-Received: by 2002:a92:1952:: with SMTP id e18mr225353ilm.291.1631149371425; Wed, 08 Sep 2021 18:02:51 -0700 (PDT) Received: from [192.168.1.116] ([66.219.217.159]) by smtp.gmail.com with ESMTPSA id s7sm149077ioe.11.2021.09.08.18.02.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 08 Sep 2021 18:02:50 -0700 (PDT) Subject: Re: [syzbot] possible deadlock in io_sq_thread To: syzbot , asml.silence@gmail.com, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <000000000000898c7405cb84d309@google.com> From: Jens Axboe Message-ID: <83d92328-0367-0115-7b17-deabcd3fddda@kernel.dk> Date: Wed, 8 Sep 2021 19:02:49 -0600 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: <000000000000898c7405cb84d309@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 9/8/21 6:10 PM, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: a2b28235335f Merge branch 'dmi-for-linus' of git://git.ker.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=175ec47d300000 > kernel config: https://syzkaller.appspot.com/x/.config?x=f5102874b5591af7 > dashboard link: https://syzkaller.appspot.com/bug?extid=c9e7f2674197989e8afb > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1 #syz dup: [syzbot] possible deadlock in io_uring_register -- Jens Axboe