Probe failed with Crucial SSD - what does it mean?

[Mario Zorin]

Hi,

I've installed FreeBSD 10.0-RELEASE/amd64 on my new SSD:

# camcontrol devlist
<Crucial CT240M500SSD3 MU03>       at scbus0 target 0 lun 0 (ada0,pass0)

However, I found this in the log:
(aprobe0:ahcich0:0:0:0): SETFEATURES ENABLE SATA FEATURE. ACB: ef 10 00 00
00 40 00 00 00 00 05 00
(aprobe0:ahcich0:0:0:0): CAM status: ATA Status Error
(aprobe0:ahcich0:0:0:0): ATA status: 51 (DRDY SERV ERR), error: 04 (ABRT )
(aprobe0:ahcich0:0:0:0): RES: 51 04 00 00 00 40 00 00 00 05 00
(aprobe0:ahcich0:0:0:0): Retrying command
(aprobe0:ahcich0:0:0:0): SETFEATURES ENABLE SATA FEATURE. ACB: ef 10 00 00
00 40 00 00 00 00 05 00
(aprobe0:ahcich0:0:0:0): CAM status: ATA Status Error
(aprobe0:ahcich0:0:0:0): ATA status: 51 (DRDY SERV ERR), error: 04 (ABRT )
(aprobe0:ahcich0:0:0:0): RES: 51 04 00 00 00 40 00 00 00 05 00
(aprobe0:ahcich0:0:0:0): Error 5, Retries exhausted
ada0 at ahcich0 bus 0 scbus0 target 0 lun 0
ada0: <Crucial CT240M500SSD3 MU03> ATA-9 SATA 3.x device
ada0: Serial Number xxxxxxxxxxxxxxx
ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
ada0: Command Queueing enabled
ada0: 228936MB (468862128 512 byte sectors: 16H 63S/T 16383C)
ada0: Previously was known as ad4

The SSD is working perfectly for several days, I can't see any problem.
What is this message about? Something to worry about?

M.Zorin