Re: [syzbot] [bcachefs?] kernel BUG in bch2_fs_btree_write_buffer_exit

syzbot
2024-10-26T07:13:04Z

syzbot has bisected this issue to:

commit bf4baaa087e2be0279991f1dbf9acaa7a4c9148c
Author: Kent Overstreet <kent.overstreet@linux.dev>
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=106e6f57980000
start commit: c2ee9f594da8 KVM: selftests: Fix build on on non-x86 archi..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=126e6f57980000
console output: https://syzkaller.appspot.com/x/log.txt?x=146e6f57980000
kernel config: https://syzkaller.appspot.com/x/.config?x=309bb816d40abc28
dashboard link: https://syzkaller.appspot.com/bug?extid=e4b5080f1e963225063e
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1218165f980000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13d0a8a7980000

Reported-by: syzbot+e4b5080f1e963225063e@syzkaller.appspotmail.com
Fixes: bf4baaa087e2 ("bcachefs: Fix lockdep splat in bch2_accounting_read")

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