syzbot has bisected this issue to: commit 12904d953364e3bd21789a45137bf90df7cc78ee Author: Jiaqi Yan <jiaqiyan@xxxxxxxxxx> Date: Wed Mar 29 15:11:21 2023 +0000 mm/khugepaged: recover from poisoned file-backed memory bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14f67032280000 start commit: 3c4aa4434377 Merge tag 'ceph-for-6.4-rc1' of https://githu.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=16f67032280000 console output: https://syzkaller.appspot.com/x/log.txt?x=12f67032280000 kernel config: https://syzkaller.appspot.com/x/.config?x=c1d541e02d3faec dashboard link: https://syzkaller.appspot.com/bug?extid=3d4aa0d3e784b29b1520 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14d1973c280000 Reported-by: syzbot+3d4aa0d3e784b29b1520@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 12904d953364 ("mm/khugepaged: recover from poisoned file-backed memory") For information about bisection process see: https://goo.gl/tpsmEJ#bisection