syzbot has bisected this issue to:
commit 16d4d43595b4780daac8fcea6d042689124cb094
Author: Christoph Hellwig <hch@xxxxxx>
Date: Wed Jul 20 01:38:55 2016 +0000
xfs: split direct I/O and DAX path
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14f662b7900000
start commit: 87d5034d Merge tag 'mlx5-updates-2020-09-30' of git://git...
git tree: net-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=16f662b7900000
console output: https://syzkaller.appspot.com/x/log.txt?x=12f662b7900000
kernel config: https://syzkaller.appspot.com/x/.config?x=7b5cc8ec2218e99d
dashboard link: https://syzkaller.appspot.com/bug?extid=5f9392825de654244975
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1100d333900000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1414c997900000
Reported-by: syzbot+5f9392825de654244975@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 16d4d43595b4 ("xfs: split direct I/O and DAX path")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
