Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp7460703imu; Tue, 22 Jan 2019 06:27:33 -0800 (PST) X-Google-Smtp-Source: ALg8bN4NpsJe8kxQE/Jed6V0DZe/+yIqSDTY7QT5pnAlMuHFPmbpuZ8dOznXS6wDQHEPliv4vXcF X-Received: by 2002:a63:2905:: with SMTP id p5mr32465300pgp.178.1548167253098; Tue, 22 Jan 2019 06:27:33 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1548167253; cv=none; d=google.com; s=arc-20160816; b=MR4K8cwN0rYJHN73M43DUmscju++XCUDjkxSbE7e66ti1T4JsoaQX/KfXZYPYigd2x WyLmVnQBEbPLB8vC866x9DyLsFLlxfEsUBNX7WbGXA07mzCcZtL/91z63ZdldRFEyxDa cdwqDyT4sPjEXPU0RByYUq3GhpIy8Rf36Neig8pSQ8/jbs8s8sd0UwPmyUznB67+1qZi CU0ZONNRKVVC94t0qxU1WhlQciJ0ErT6ff6pNq0cEelilemeiiSyoIdaDHJkkylb0Q4H JXNl+3yEb9c3gP/l0y6/VmVINKyEI+fCOLSAUNC3cV/eJFy3ofnZ35wsKSYrP2ZjZAO6 7iWQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:to:from:subject:message-id:in-reply-to :date:mime-version; bh=ncWC1sQSGq8dCoDCHGdc0UKCVRQPCUtJfaMUbHP+6As=; b=vCdZnOyU/FaZRmGZmmokn4j0Dz+Jh/KEg3fTFykqLd+iW0cwjh9OrACvaFYjeaIaxS 9d35msYFOi7B/SW9YSPOexQZh9U0AfipP1rV/r2ibPb0R5HwSgDHMAJZsLzFUxjh/Nto NXga5RYCY4Kt19O/yd0tZ8Nb5g8aBRVlKUDMfqxtOszwAEB8apPrslBZdRszeNrZSe05 h1KD5HEwknllWCwRF1GQZ9peBsoJZ0DZ4abj/tcRc0iy8DnZyUvVQOpqPDxkz5tJMT4B vngkJnRKCc4V/4RYLcbyaW/VJB3lzMTXqlRTNY74XQICvImr+sSWweN/M2QyR5iXZHDz TT4A== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id e1si2856262pln.55.2019.01.22.06.27.16; Tue, 22 Jan 2019 06:27:33 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728737AbfAVO0E (ORCPT + 99 others); Tue, 22 Jan 2019 09:26:04 -0500 Received: from mail-io1-f72.google.com ([209.85.166.72]:35127 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728539AbfAVO0E (ORCPT ); Tue, 22 Jan 2019 09:26:04 -0500 Received: by mail-io1-f72.google.com with SMTP id x12so19649531ioj.2 for ; Tue, 22 Jan 2019 06:26:03 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=ncWC1sQSGq8dCoDCHGdc0UKCVRQPCUtJfaMUbHP+6As=; b=CzZhzAGWEjnHdXWRzKhiu5QMwYIxRWWRFk3tQtzWhlJF1hl6/5GcJRPtteWhoTzwAc rS4wcOImPaBrVaZbeOKGbY0WCGcxRcN4viWBJnq3w+7GmVh0rIwThS29UTghC/Xuvk2e aJhHDRFg/0v+FGRvDw4k3MF4/K4UVedqf3gYaZvp+4ZJuV/zEPNTsFXvB3blYcWjbx/y 3HAIXUNcgxznRxfg7+6Kl1dKLeXSrTrPDW00QyEUFJENktT10Xer3rwkwtadadJa4eSL cLwhkZk/v6if90KTOUNDKwjJCv7aGnYUEf/Q75wkmY8m+oUENk6UrZeBH+TQHW6ZThTV JuQA== X-Gm-Message-State: AJcUukcBWFhQoCMipYwgroCi/qG/IoGP+NDb+eSP4y8yg8wwsEYD5wIV 8FV3v/sYnNqAcwJrN0jeWiIQb2mK3r3kW6fCkUmPMqmus1d+ MIME-Version: 1.0 X-Received: by 2002:a5e:d50b:: with SMTP id e11mr848606iom.25.1548167163571; Tue, 22 Jan 2019 06:26:03 -0800 (PST) Date: Tue, 22 Jan 2019 06:26:03 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000d6738b05800cc19e@google.com> Subject: Re: possible deadlock in vfs_fallocate From: syzbot To: arve@android.com, devel@driverdev.osuosl.org, dvyukov@google.com, ebiggers3@gmail.com, gregkh@linuxfoundation.org, joelaf@google.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, maco@android.com, penguin-kernel@i-love.sakura.ne.jp, syzkaller-bugs@googlegroups.com, tkjos@android.com, tkjos@google.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch and the reproducer did not trigger crash: Reported-and-tested-by: syzbot+148c2885d71194f18d28@syzkaller.appspotmail.com Tested on: commit: 48b161983ae5 Merge tag 'xarray-5.0-rc3' of git://git.infra.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=dd3a020d055fa2e8 compiler: gcc (GCC) 9.0.0 20181231 (experimental) patch: https://syzkaller.appspot.com/x/patch.diff?x=16e6d908c00000 Note: testing is done by a robot and is best-effort only.