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 018D9C433EF for ; Fri, 11 Feb 2022 13:24:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350515AbiBKNYU (ORCPT ); Fri, 11 Feb 2022 08:24:20 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:49806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243011AbiBKNYT (ORCPT ); Fri, 11 Feb 2022 08:24:19 -0500 Received: from mail-pl1-x633.google.com (mail-pl1-x633.google.com [IPv6:2607:f8b0:4864:20::633]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DE378BBF for ; Fri, 11 Feb 2022 05:24:18 -0800 (PST) Received: by mail-pl1-x633.google.com with SMTP id w20so4661271plq.12 for ; Fri, 11 Feb 2022 05:24:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=f0Fqv0bzjFszIvvUAYWw2+6kT8bby7TTzSPdzg4sLUk=; b=Nc1J7qQsJ5lN0gl2mCSiyQbwLxaid+TjM4CKQxk6Cf5vjQ6gi9mrnWc6LNrSc7aWqO AZSCN78OBiJa5L4N6lszjiBB+TZ+S1dlkQsQcMU6dpYy4yIiUF09ZrZH9oNotc1ekUlx 3iVYoiIAcrxfOrvi9ICK74/BPk3R3gJE864ANAv2SdLvyOZkoUlDrXFN3DlO6nKkx4DS jP3aWbXY8gcefvSLNxVKFJslqMJ5KY4eDFk3q0yQT2Gr3y67Yf02Uq2oWTEa2w2y35gy oyKEBdp4yD9CCmAzoamDdHaNBaRuK4XO2G+KGLiiwKA0bVThIv207BqyzRuR6Mm6YT/3 ez1w== 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=f0Fqv0bzjFszIvvUAYWw2+6kT8bby7TTzSPdzg4sLUk=; b=TOlWMtzC3STq4R6TrurdQprtbe49oXu4xwazDHEhsQ7hnVVrOp8wPHe6q5IcgJPmNz PakibtVRIjHzR0AMObqwsxMjzkvEm3DuSrqsyxxWa8y5MOiJtnaUVpUZRThrgyZFDYtR d2aNu/33vXOs9pnYH9FvQ0qW3YGD3zpypeBcaQ163FDxwDnAicf7EQ2RpuyPSP/M5/pi ft4Q2lRtBAG6Wts+9//8NPdIOBK+zeI0UDiI7ccXH7i2AngzwZFxSQAheMrLtNjRfgR4 2g2gdOMgVcU2G6pl6AraDrExF13K1lXAJD1VJlOdaAtk70+4JVVzOn9+1cm8qt2r+wbX 9kkw== X-Gm-Message-State: AOAM531lFIb95e2RUPBzqF3nSya9x0HcJVz0CpwuRxY+rCmD0TGB26Xm 1fWga5at5cFd/fdFcbK3Fa9Z/w== X-Google-Smtp-Source: ABdhPJzK2XUVwYEzIxK7kyMOxfYcu9Ot/TBK7K2adSoNhKewYU5KYOdn5DxEl72sB6jd1gpTdGqm8Q== X-Received: by 2002:a17:902:bd03:: with SMTP id p3mr1610578pls.50.1644585858331; Fri, 11 Feb 2022 05:24:18 -0800 (PST) Received: from [192.168.1.116] ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id f30sm11884656pgf.7.2022.02.11.05.24.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 11 Feb 2022 05:24:17 -0800 (PST) Subject: Re: [syzbot] possible deadlock in io_poll_double_wake (3) To: syzbot , alaaemadhossney.ae@gmail.com, asml.silence@gmail.com, dvyukov@google.com, hdanton@sina.com, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <00000000000098f75305d7ba7942@google.com> From: Jens Axboe Message-ID: <6c143b3f-c801-1906-27d1-be876272b1a0@kernel.dk> Date: Fri, 11 Feb 2022 06:24:16 -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: <00000000000098f75305d7ba7942@google.com> 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 #syz fix: io_uring: poll rework -- Jens Axboe