Jan 15 19:53:53 kernel: BTRFS critical (device dm-1): corrupt leaf, bad key order: block=29311180406784,root=1, slot=3 Jan 15 19:53:53 kernel: BTRFS critical (device dm-1): corrupt leaf, bad key order: block=29311180406784,root=1, slot=3 Jan 15 19:53:53 kernel: BTRFS: error (device dm-1) in btrfs_drop_snapshot:9389: errno=-5 IO failure Jan 15 19:53:53 kernel: BTRFS info (device dm-1): forced readonly Jan 15 19:54:24 kernel: BTRFS info (device dm-1): delayed_refs has NO entry