[ 8168.086966] ldm_validate_partition_table(): Disk read failed.
[ 8168.087001] Dev sdb: unable to read RDB block 0
[ 8168.087051]  unknown partition table
[ 8168.087268] sd 3:0:0:0: Attached scsi disk sdb
[ 8168.087352] sd 3:0:0:0: Attached scsi generic sg1 type 0
[ 8372.584596] printk: 92 messages suppressed.
[ 8372.584612] Buffer I/O error on device sdb, logical block 0