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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0A1CFE95A97 for ; Mon, 9 Oct 2023 12:37:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1376475AbjJIMhb (ORCPT ); Mon, 9 Oct 2023 08:37:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46700 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346571AbjJIMh2 (ORCPT ); Mon, 9 Oct 2023 08:37:28 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 733769D; Mon, 9 Oct 2023 05:37:27 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E5626C433C8; Mon, 9 Oct 2023 12:37:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1696855047; bh=a5bE6yi0Y8uBlf8hd66K9CjHe4sGRHljieVfPGaGVY4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=gLoe32ZISCJRKawT1uuNATHYyBY0BEf/Y2lK6hZUCa4JrCY8F+ywn0LdfpdNKceIG I4vcIrrrb3tkUN+F5sEjgNQitgaCcWmLuYydcIM/biY9rnIfiyRSxm20OTJbPoH/rr tX7p005mKCi5AEnxIBKmqITGWk1YFjGPD6qP8w32K4+cmVOl6HcWEyQKUsKXTz8HRj V87KuBuW5ejNn4FYa1fAbJV/RdVFtYLAdfRn34QBWSi9wwZMBRw4aRo2rCoWYxv4To yIfnPC2k7v5wurg0LAwN//88Ndv2JseTrt1kt91pJRJC3e8xRsnw4VXRAnvUHw6Zq+ Pb7l3XYbqCK2A== Date: Mon, 9 Oct 2023 14:37:15 +0200 From: Christian Brauner To: syzbot Cc: axboe@kernel.dk, chao@kernel.org, daniel.vetter@ffwll.ch, hdanton@sina.com, jack@suse.cz, jaegeuk@kernel.org, jinpu.wang@ionos.com, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, mairacanal@riseup.net, mcanal@igalia.com, reiserfs-devel@vger.kernel.org, syzkaller-bugs@googlegroups.com, terrelln@fb.com, willy@infradead.org, yukuai3@huawei.com Subject: Re: [syzbot] [reiserfs?] possible deadlock in super_lock Message-ID: <20231009-leihgabe-abseilen-26e86d03f787@brauner> References: <0000000000001825ce06047bf2a6@google.com> <00000000000071133306073f06ca@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <00000000000071133306073f06ca@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Oct 08, 2023 at 07:05:32PM -0700, syzbot wrote: > syzbot has bisected this issue to: > > commit 7908632f2927b65f7486ae6b67c24071666ba43f > Author: Maíra Canal > Date: Thu Sep 14 10:19:02 2023 +0000 > > Revert "drm/vkms: Fix race-condition between the hrtimer and the atomic commit" > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17fc0565680000 > start commit: 2cf0f7156238 Merge tag 'nfs-for-6.6-2' of git://git.linux-.. > git tree: upstream > final oops: https://syzkaller.appspot.com/x/report.txt?x=14020565680000 > console output: https://syzkaller.appspot.com/x/log.txt?x=10020565680000 > kernel config: https://syzkaller.appspot.com/x/.config?x=710dc49bece494df > dashboard link: https://syzkaller.appspot.com/bug?extid=062317ea1d0a6d5e29e7 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=107e9518680000 > > Reported-by: syzbot+062317ea1d0a6d5e29e7@syzkaller.appspotmail.com > Fixes: 7908632f2927 ("Revert "drm/vkms: Fix race-condition between the hrtimer and the atomic commit"") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection The bisect is obviously bogus. I haven't seend that bug report before otherwise I would've already fixed this way earlier: #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git b4/vfs-fixes-reiserfs