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=-5.5 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 1A4E3C433E0 for ; Mon, 10 Aug 2020 20:45:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DB2C420768 for ; Mon, 10 Aug 2020 20:45:22 +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="a8927blX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726531AbgHJUpT (ORCPT ); Mon, 10 Aug 2020 16:45:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56614 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726474AbgHJUpS (ORCPT ); Mon, 10 Aug 2020 16:45:18 -0400 Received: from mail-pf1-x432.google.com (mail-pf1-x432.google.com [IPv6:2607:f8b0:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2E860C061788 for ; Mon, 10 Aug 2020 13:45:18 -0700 (PDT) Received: by mail-pf1-x432.google.com with SMTP id u20so6371342pfn.0 for ; Mon, 10 Aug 2020 13:45:18 -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=bSPnxn3kyrwVbRID2Yxgnq1PnNVuxdGlfum9Ij0n2vw=; b=a8927blXkuuZ77vcJAPIc1fCrs3Z/XvpAT5yK/HJZMyDdd6sPzS44TtPc9CZmzVzgW tmYNMFKu3pmkvywv+sYJF46Mo+op2XhIwM/AqPfTWYskr6N0/0njCZ1t55ced7+wZnld bmDr8++wf0/rdkT2od5ARNoaV3e/P0ctYt7QqqSNtSSmSddNLSdalBUS7yX5ytRqQTNl 09G6532ra5wArLu/htXZqbyjCFRy4Xr5PJLQC+8EipSuzPQttCS+jXputk+kAi3Wvgl+ OdF645lAAl/TnSHN5z0O4AW9D1VsKtvcSrdKOk1nO4akJq7uMajQf6TiApC/XcP4Gmq+ KhDQ== 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=bSPnxn3kyrwVbRID2Yxgnq1PnNVuxdGlfum9Ij0n2vw=; b=nxaNH/DPKjRo2Zfy8djwHgXs335dfIrVKnphH1a9+2T+FkPHgQxgamSyCmTdKcwu7o tAuAIRja/LEr2Le2F0r/2Cysx49yZcOuSvzwsOsqJHBrZwrGo6d1hmJQncDi1x/1h3JQ hSHoaVvdOYpv1i71lr6dJu0RHdA5XDJp6AJXhwzDXlm6h3CpclhcbGvNptSzpuCAVa8F 5yJgRD5ON7Z/TmvNb08dIPGxpGD4uQluTJfBE86wSt+OGhPYWXPGWJxf0XjOqJJXscyh 6o+lvw+knqPlBO7kyvWeGA95uF2fj1ZsaLIizfnpRBYXxqQSLFN481N+Z2/7uJalURqo yHrQ== X-Gm-Message-State: AOAM532Wk9PZX5+dbgmOyjemj6f7rhXp0jdcRsHQEJHVqu7gyDgC54CX PsW6/y4GLBLkXnPHiiksVy2G0Q== X-Google-Smtp-Source: ABdhPJxKiSSq6UWiaNnF1Pac7zVqzamjjJOvuEPwlk6vbhwUi47n/I0zTu2dbu7uhLcKtBTPOAFBLQ== X-Received: by 2002:a63:b0a:: with SMTP id 10mr23515903pgl.166.1597092317352; Mon, 10 Aug 2020 13:45:17 -0700 (PDT) Received: from [192.168.1.182] ([66.219.217.173]) by smtp.gmail.com with ESMTPSA id d1sm397055pjs.17.2020.08.10.13.45.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 10 Aug 2020 13:45:16 -0700 (PDT) Subject: Re: INFO: task can't die in io_uring_flush 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: <000000000000991ae405ac8beb12@google.com> From: Jens Axboe Message-ID: Date: Mon, 10 Aug 2020 14:45:14 -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: <000000000000991ae405ac8beb12@google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: io-uring-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org #syz dup: INFO: task hung in io_uring_flush -- Jens Axboe