syzbot has bisected this issue to:
commit 03ef80b469d5d83530ce1ce15be78a40e5300f9b
Author: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Date: Sat Sep 23 22:41:51 2023 +0000
bcachefs: Ignore unknown mount options
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=147f3908980000
start commit: f03359bca01b Merge tag 'for-6.9-rc6-tag' of git://git.kern..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=167f3908980000
console output: https://syzkaller.appspot.com/x/log.txt?x=127f3908980000
kernel config: https://syzkaller.appspot.com/x/.config?x=d2f00edef461175
dashboard link: https://syzkaller.appspot.com/bug?extid=1e515cab343dbe5aa38a
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11d42c70980000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15ce8250980000
Reported-by: syzbot+1e515cab343dbe5aa38a@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 03ef80b469d5 ("bcachefs: Ignore unknown mount options")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
