ata marvel errors after kernel upgrade

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Hi,

After upgrading to kernel 2.6.32-431.1.2.el6.x86_64 the messages below
keep appearing in "/var/log/messages".

--------------------------------------------------------------------------
ata16.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6
ata16.00: irq_stat 0x40000001
scsi 16:0:0:0: [sg18] CDB: Read Capacity(10): 25 00 00 00 00 00 00 00 00 
00
ata16.00: cmd a0/00:00:00:08:00/00:00:00:00:00/a0 tag 0 pio 16392 in
          res 00/00:00:00:00:00/00:00:00:00:00/00 Emask 0x3 (HSM violation)
ata16: hard resetting link
ata16: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata16.00: configured for UDMA/66
ata16: EH complete
--------------------------------------------------------------------------

Output from  "sginfo -i  /dev/sg18" shows

Command Queueing                   0
Vendor:                    Marvell
Product:                   91xx Config
Revision level:            1.01

This is an unused SATA chipset on a the motherboard, no
devices are plugged into it.

Also oddly I am getting

[root@mach~]# sginfo -r
/dev/scanner-sg18 /dev/scanner /dev/sdb /dev/sda

"/dev/sdb" and "/dev/sda" are HD's no idea what "/dev/scanner" is?

[root@mach~]# sginfo /dev/scanner
INQUIRY response (cmd: 0x12)
----------------------------
Device Type                        3
Vendor:                    Marvell
Product:                   91xx Config
Revision level:            1.01

-------------------------------------------------------------------------

There is no scanner attached to this machine so I am confused at the 
above output.

Steve

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