Received: by 10.192.165.156 with SMTP id m28csp1886850imm; Sat, 14 Apr 2018 08:34:44 -0700 (PDT) X-Google-Smtp-Source: AIpwx48Nd+2MSURwFmiT++MepKQCW0OWkTQhIJv1k/MU7lotl8a+9Q0HykQud+vnZVyZ4gkAZOI2 X-Received: by 2002:a17:902:e5:: with SMTP id a92-v6mr9203720pla.26.1523720084746; Sat, 14 Apr 2018 08:34:44 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1523720084; cv=none; d=google.com; s=arc-20160816; b=Mu5GL79xUPkpNl4nS/V/l39Wf+fvhTkb/dpxJYq8n4etiEpJW//oSHNlr1d+88s/yH dNmu7rVnViVzQJw3FvjyptiF205hNVO2FCxsZLxpB1ZKaeRSWseZyCx548zk6dOYgE5b Yk5Se3B3vziOV2XtKGcNwLL5nLnpCZaOzmAZjvdtKsnSQNT+JlnKalhPbvuPH8mJ3j9N NB1pH4aEzpVt0yunVEw7M4+IgZ1/qJpT9GFFt2rEtbWDx374VI3Qd/GmiLR40uagvUST qfpLk+7qO6Kf7Yrjj1eDuk0JPb+BCl+KGzq9ln/VSfVHS8Fg72tCn08ckHZ/sCuTPwIC wxiA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:cc:to:subject:arc-authentication-results; bh=PGYx5Obel5+rthPLB20wHSjzi2remHnht1OuRA2eKeU=; b=yAW8v+xnH8Z6yqZzyX3FnhYDpeQSmyFQP8viP2+koDJLr0dqX8v5dgxOLKf/yVjVHl fZYLwMFb3FTYjFRnxpRf7p8lO+Ylo0xBrqFa6qEu4BzOWQu5+f93/xaKVd+GKfhR6ClF PMS9TELcDvXaGlvcKYZqJw0ykQ4+1WAgNatE5RELTR7Qa8dmup6IW9LIdTAvZ1K8wXwi JNU8O2R0CMd1+lktNOa2CaNB+oAXX1zXyDIV4yF3jUwLCTPqXzR7GiXuO1JQ9+j2HWCN VgPRzXgtnKn4FkY93e82smVH5JjZW++bafrZuno25awBgWf2vEodmDOHO96i1CxQVVMG hv5g== 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 Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id y73si4749028pgd.188.2018.04.14.08.34.30; Sat, 14 Apr 2018 08:34:44 -0700 (PDT) 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751127AbeDNPd2 (ORCPT + 99 others); Sat, 14 Apr 2018 11:33:28 -0400 Received: from www262.sakura.ne.jp ([202.181.97.72]:18845 "EHLO www262.sakura.ne.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750939AbeDNPd1 (ORCPT ); Sat, 14 Apr 2018 11:33:27 -0400 Received: from fsav401.sakura.ne.jp (fsav401.sakura.ne.jp [133.242.250.100]) by www262.sakura.ne.jp (8.14.5/8.14.5) with ESMTP id w3EFXFjd025830; Sun, 15 Apr 2018 00:33:16 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav401.sakura.ne.jp (F-Secure/fsigk_smtp/530/fsav401.sakura.ne.jp); Sun, 15 Apr 2018 00:33:15 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/530/fsav401.sakura.ne.jp) Received: from [192.168.1.8] (softbank126099184120.bbtec.net [126.99.184.120]) (authenticated bits=0) by www262.sakura.ne.jp (8.14.5/8.14.5) with ESMTP id w3EFX62F025778 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sun, 15 Apr 2018 00:33:15 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Subject: Re: WARNING: lock held when returning to user space! To: Jens Axboe , Dmitry Vyukov Cc: syzbot , linux-block@vger.kernel.org, LKML , syzkaller-bugs@googlegroups.com, Omar Sandoval References: <00000000000082922905692da9e1@google.com> <0e998b77-14f0-aee0-8d32-bc1dd96fcc4c@kernel.dk> <63121c85-f417-cde8-510d-f275dbe81c4d@kernel.dk> From: Tetsuo Handa Message-ID: <7e5ab719-ad6b-015f-2e4c-8cba2ee157f8@I-love.SAKURA.ne.jp> Date: Sun, 15 Apr 2018 00:33:03 +0900 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <63121c85-f417-cde8-510d-f275dbe81c4d@kernel.dk> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The patch was sent to linux.git as commit bdac616db9bbadb9. #syz fix: loop: fix LOOP_GET_STATUS lock imbalance