Re: [syzbot] [bcachefs?] kernel BUG in bch2_btree_node_iter_init_from_start

[syzbot]

syzbot has bisected this issue to:

commit 7dcf62c06d11195e8caecd7b2236aa5b07e3ef8c
Author: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Date:   Tue Sep 26 21:21:21 2023 +0000

    bcachefs: Make btree root read errors recoverable

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1232b2df980000
start commit:   e9b8ffafd20a Merge tag 'usb-6.13-rc4' of git://git.kernel...
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1132b2df980000
console output: https://syzkaller.appspot.com/x/log.txt?x=1632b2df980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1234f097ee657d8b
dashboard link: https://syzkaller.appspot.com/bug?extid=381eead9693b057ae73f
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17f640c4580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=176fbe0f980000

Reported-by: syzbot+381eead9693b057ae73f@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 7dcf62c06d11 ("bcachefs: Make btree root read errors recoverable")

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