linux-kernel - Re: [syzbot] [btrfs?] WARNING in btrfs_run_delayed

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Date:   Mon, 18 Sep 2023 01:39:35 -0700
From:   syzbot <syzbot+810ea5febd3b79bdd384@...kaller.appspotmail.com>
To:     clm@...com, dsterba@...e.com, fdmanana@...e.com,
        josef@...icpanda.com, linux-btrfs@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [btrfs?] WARNING in btrfs_run_delayed_refs (2)

syzbot has bisected this issue to:

commit f8f210dc84709804c9f952297f2bfafa6ea6b4bd
Author: Filipe Manana <fdmanana@...e.com>
Date:   Tue Mar 21 11:13:59 2023 +0000

    btrfs: calculate the right space for delayed refs when updating global reserve

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12fb487fa80000
start commit:   dad9774deaf1 Merge tag 'timers-urgent-2023-06-21' of git:/..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=11fb487fa80000
console output: https://syzkaller.appspot.com/x/log.txt?x=16fb487fa80000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e74b395fe4978721
dashboard link: https://syzkaller.appspot.com/bug?extid=810ea5febd3b79bdd384
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=13ceaa3f280000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1502f600a80000

Reported-by: syzbot+810ea5febd3b79bdd384@...kaller.appspotmail.com
Fixes: f8f210dc8470 ("btrfs: calculate the right space for delayed refs when updating global reserve")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection