> [Sun Jun 18 04:02:43 2017] BTRFS critical (device sdb2): corrupt node, bad key order: block=5123372711936, root=1, slot=82
>From the archives, most likely it's bad RAM. I see this system also uses XFS v4 file system, if it were made as XFS v5 using metadata csums you'd probably eventually run into a similar problem that would be caught by metadata checksum errors. It'll fail faster with Btrfs because it's checksumming everything. Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html