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 C08C1C47423 for ; Tue, 29 Sep 2020 14:08:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6204321531 for ; Tue, 29 Sep 2020 14:08:52 +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="yJ/vStC0" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730654AbgI2OIt (ORCPT ); Tue, 29 Sep 2020 10:08:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33836 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728327AbgI2OIt (ORCPT ); Tue, 29 Sep 2020 10:08:49 -0400 Received: from mail-io1-xd29.google.com (mail-io1-xd29.google.com [IPv6:2607:f8b0:4864:20::d29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2A4A7C0613D0 for ; Tue, 29 Sep 2020 07:08:49 -0700 (PDT) Received: by mail-io1-xd29.google.com with SMTP id u6so4910306iow.9 for ; Tue, 29 Sep 2020 07:08:49 -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=euWnP0EJlqYVaKu5lNq63ImPlulmGIi8tNfvVNhQacA=; b=yJ/vStC080VOPuKUMvBTmMUJ1H/SPQ3U7f29zv7UcANL8Z2hrauxe2MtRa6DCJFy/S mBWCHeAM2WNCaaA3IlgJVlC45InLmWcqjAsNzgUNikSIiak+4BPAr1Hv50RtsOUyhpW3 vUZr4FIuyNX8Zw+Olb0YH6UtlxjbRWlg3zcJ9hXWNI8oJzIpyKxYAxBgUWettmTXQDUb PgzgiM9klFb1V1fyEOURhsjeES/gaCBo2HManZbKZO6KUkN8z3s+y2w9DtBG4QZD4KaR sJNb+ot8MeSxJ5MzQFpgXJTeW6BKHUniIcELOsIHRtuVDRXLsoDrX59RTLFD3G6VSU3J 7ahA== 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=euWnP0EJlqYVaKu5lNq63ImPlulmGIi8tNfvVNhQacA=; b=f0/r+Q9PwOUBNOWbnEHsCwaaI45G5q84kYTiYQCcfp0TVFrklkMLeR3G/wgMRqk9uM 0VIyQ/T4ZGG5uRkxfNXf1gpVf3c+SwolNrS7lOVobKp9VgoJ/L5rBw9jnnvE/BM3tHP4 STZrjqRa3us5oeaJKYnEGW1Hi/KbFK7VqkKVvTOxLip1MN2qx2iLcgmJJy+UVhscaV/b fgkknqiSzExO//BXVOs8cxavls/4UKyAeT/UbJ2wYaG32EwrjoM0f5aHOlasRULcUIwT 0OJf7aVyKJDZiMYEfDEamWUufV3UOmfsur8sGXN0U2fky4+0w4XIr5BmZdbhFiud22K/ bvXA== X-Gm-Message-State: AOAM531r3aunLWeVJ5AlNwKl6CGwm91THzwrM+6mGZonlVra8uKHP1OZ Vjin04Ve99oh98fA4CjUmRPOTw== X-Google-Smtp-Source: ABdhPJwznZKAEjDwbXPZsPlNS+SrujjBj22UJqCGUldQibpOSN7EhG/+YYv8NUbpjF+Q14qRF0RZKA== X-Received: by 2002:a6b:8b52:: with SMTP id n79mr2561452iod.122.1601388528281; Tue, 29 Sep 2020 07:08:48 -0700 (PDT) Received: from [192.168.1.30] ([65.144.74.34]) by smtp.gmail.com with ESMTPSA id d17sm2470609ilo.3.2020.09.29.07.08.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 29 Sep 2020 07:08:47 -0700 (PDT) Subject: Re: possible deadlock in io_uring_show_fdinfo To: 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: <0000000000000a315605b06fb13c@google.com> From: Jens Axboe Message-ID: Date: Tue, 29 Sep 2020 08:08:46 -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: <0000000000000a315605b06fb13c@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 #syz dup: possible deadlock in io_write -- Jens Axboe