Re: [syzbot] [bcachefs?] kernel BUG in bch2_btree_write_buffer_flush_locked

[syzbot]

syzbot has bisected this issue to:

commit bf4baaa087e2be0279991f1dbf9acaa7a4c9148c
Author: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Date:   Sat Oct 5 21:37:02 2024 +0000

    bcachefs: Fix lockdep splat in bch2_accounting_read

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13a968c0580000
start commit:   a9cda7c0ffed Merge tag 'irq_urgent_for_v6.12_rc7' of git:/..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=106968c0580000
console output: https://syzkaller.appspot.com/x/log.txt?x=17a968c0580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=347f0ef7656eeb41
dashboard link: https://syzkaller.appspot.com/bug?extid=4aff7bdaa254c1d9f008
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1480135f980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=153f54e8580000

Reported-by: syzbot+4aff7bdaa254c1d9f008@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: bf4baaa087e2 ("bcachefs: Fix lockdep splat in bch2_accounting_read")

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