[syzbot] Monthly bcachefs report (Jun 2025)

[syzbot]

Hello bcachefs maintainers/developers,

This is a 31-day syzbot report for the bcachefs subsystem.
All related reports/information can be found at:
https://syzkaller.appspot.com/upstream/s/bcachefs

During the period, 15 new issues were detected and 8 were fixed.
In total, 102 issues are still open and 190 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  30829   Yes   INFO: task hung in bch2_copygc_stop
                   https://syzkaller.appspot.com/bug?extid=c6fd966ebbdea1e8ff08
<2>  7874    Yes   INFO: task hung in __closure_sync
                   https://syzkaller.appspot.com/bug?extid=7bf808f7fe4a6549f36e
<3>  3875    Yes   WARNING in bch2_trans_srcu_unlock
                   https://syzkaller.appspot.com/bug?extid=1e515cab343dbe5aa38a
<4>  1497    Yes   INFO: task hung in __bch2_fs_stop
                   https://syzkaller.appspot.com/bug?extid=6d3e28b33490b3085412
<5>  1236    Yes   INFO: task hung in bch2_journal_reclaim_thread (2)
                   https://syzkaller.appspot.com/bug?extid=820dc3b465c69f766a57
<6>  442     Yes   WARNING in bch2_trans_put
                   https://syzkaller.appspot.com/bug?extid=291aef749c5cbb9ca2fd
<7>  361     Yes   kernel panic: trans should be locked, unlocked by bch2_btree_update_start
                   https://syzkaller.appspot.com/bug?extid=d540192e763531d307ff
<8>  343     Yes   UBSAN: shift-out-of-bounds in __bch2_btree_node_hash_insert
                   https://syzkaller.appspot.com/bug?extid=029d1989099aa5ae3e89
<9>  326     Yes   WARNING in __bch2_truncate_folio
                   https://syzkaller.appspot.com/bug?extid=3d11e35eeafe176a6c5b
<10> 324     Yes   INFO: task hung in bch2_readahead
                   https://syzkaller.appspot.com/bug?extid=a6060114362257e9798a

---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx.

To disable reminders for individual bugs, reply with the following command:
#syz set <Ref> no-reminders

To change bug's subsystems, reply with:
#syz set <Ref> subsystems: new-subsystem

You may send multiple commands in a single email message.