[syzbot] [xfs?] WARNING: Reset corrupted AGFL on AG NUM. NUM blocks leaked. Please unmount and run xfs_repair. (2)

[syzbot] [xfs?] WARNING: Reset corrupted AGFL on AG NUM. NUM blocks leaked. Please unmount and run xfs_repair. (2)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit:    e48e99b6edf4 Merge tag 'pull-fixes' of git://git.kernel.or..
git tree:       upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=12b18be4580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=695196aa2bd08d99
dashboard link: https://syzkaller.appspot.com/bug?extid=e0e774741360f6c74414
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11aea7cf980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1727c94c580000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/bacf2069a3a3/disk-e48e99b6.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/6b2b20d05f13/vmlinux-e48e99b6.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a5ab8f6aba17/bzImage-e48e99b6.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/635c0241b9a9/mount_0.gz
  fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=1327c94c580000)

The issue was bisected to:

commit 29887a22713192509cfc6068ea3b200cdb8856da
Author: Darrick J. Wong <darrick.wong@oracle.com>
Date:   Mon Aug 17 17:00:01 2020 +0000

    xfs: enable big timestamps

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=16ceafb0580000
final oops:     https://syzkaller.appspot.com/x/report.txt?x=15ceafb0580000
console output: https://syzkaller.appspot.com/x/log.txt?x=11ceafb0580000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+e0e774741360f6c74414@syzkaller.appspotmail.com
Fixes: 29887a227131 ("xfs: enable big timestamps")

XFS (loop0): Mounting V5 Filesystem d7dc424e-7990-42cb-9f91-9cb7200a101d
XFS (loop0): Ending clean mount
XFS (loop0): WARNING: Reset corrupted AGFL on AG 0. 1 blocks leaked. Please unmount and run xfs_repair.
XFS (loop0): Unmounting Filesystem d7dc424e-7990-42cb-9f91-9cb7200a101d


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

If the report is already addressed, let syzbot know by replying with:
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