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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 96CEBC388F9 for ; Sat, 7 Nov 2020 12:10:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6BDDA20704 for ; Sat, 7 Nov 2020 12:10:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727881AbgKGMKJ (ORCPT ); Sat, 7 Nov 2020 07:10:09 -0500 Received: from mail-io1-f69.google.com ([209.85.166.69]:51878 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727380AbgKGMKI (ORCPT ); Sat, 7 Nov 2020 07:10:08 -0500 Received: by mail-io1-f69.google.com with SMTP id r7so2949416ioh.18 for ; Sat, 07 Nov 2020 04:10:06 -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=bEPCOFw5S5rBelNwysXtchmzidY5p8w+fdQ9rPQh+s4=; b=UyvNfRCMy9pLrmLvh0YYk4AdXMRptwpHUn2NYwJCIi1YbujrQNh91WyIZ9DbmflgXR dwswKJ0BA9QOfp0a28pQWa3nPbhqFY3MUhAfDoKJ8xgjNt06Vw57p4y6U45X2STt7q+I MGiLKOrL1th03w5pr1moH4mL8SXfnKdZZe2DfepDW5f5qzyh35a48AT8MOYbvz4Skpcs U2sSb9FXdjZ1NLtA7UgHqAwrnRuCktT9Q4PPJ1yUEgTWGHd3yzqh5XcmxhSEb6UV2GfQ pL31UjDqkkSsbjfW1w/9jbr3vbQtxdKdCmYVzpGYwyDGUq9LakUUQJIpvWxhSbASk9GE 28Ng== X-Gm-Message-State: AOAM530k/tbFemqpUk9gurKVymHzWv7FR7iT64ZemDKEW3oGzAkpt0j1 NBPCsXehycnlF+TnxsJVcqF3MgG+UjRMG+8YM9h3yogSAb27 X-Google-Smtp-Source: ABdhPJy/fr/95Krh7za4yiITJhgfJeU+W90NQEYDsQN2T1cH8wGjrelyVfzoWNnPmSrQoa+mWN3xe4S+Mr6tLRiC6Ft6svXkCXrw MIME-Version: 1.0 X-Received: by 2002:a05:6e02:11a4:: with SMTP id 4mr359864ilj.141.1604751006170; Sat, 07 Nov 2020 04:10:06 -0800 (PST) Date: Sat, 07 Nov 2020 04:10:06 -0800 In-Reply-To: <000000000000d03eea0571adfe83@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ad052105b383350a@google.com> Subject: Re: possible deadlock in mnt_want_write From: syzbot To: amir73il@gmail.com, ast@kernel.org, dvyukov@google.com, linux-fsdevel@vger.kernel.org, linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org, linux-unionfs@vger.kernel.org, miklos@szeredi.hu, mszeredi@redhat.com, rgoldwyn@suse.de, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk, zohar@linux.ibm.com, zohar@linux.vnet.ibm.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org syzbot suspects this issue was fixed by commit: commit 146d62e5a5867fbf84490d82455718bfb10fe824 Author: Amir Goldstein Date: Thu Apr 18 14:42:08 2019 +0000 ovl: detect overlapping layers bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11e40184500000 start commit: 6d906f99 Merge tag 'arm64-fixes' of git://git.kernel.org/p.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=856fc6d0fbbeede9 dashboard link: https://syzkaller.appspot.com/bug?extid=ae82084b07d0297e566b syz repro: https://syzkaller.appspot.com/x/repro.syz?x=111767b7200000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1611ab2d200000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: ovl: detect overlapping layers For information about bisection process see: https://goo.gl/tpsmEJ#bisection