Hard Drive Error : ata3.00: status: { DRDY ERR }

[hobong]

Hi all
I have problem with my System the log always spam with these messages :

..........
68489.756311] ata3.00: status: { DRDY ERR }
[68489.756314] ata3.00: error: { UNC }
[68489.951583] ata3.00: configured for UDMA/133
[68489.951604] ata3: EH complete
[68492.671124] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[68492.671133] ata3.00: BMDMA stat 0x24
[68492.671140] ata3.00: cmd c8/00:08:55:e8:8d/00:00:00:00:00/e2 tag 0 dma 4096 in
[68492.671142]          res 51/40:00:56:e8:8d/00:00:00:00:00/02 Emask 0x9 (media error)
[68492.671145] ata3.00: status: { DRDY ERR }
[68492.671148] ata3.00: error: { UNC }
[68492.899657] ata3.00: configured for UDMA/133
[68492.899678] ata3: EH complete
[68495.610841] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[68495.610851] ata3.00: BMDMA stat 0x24
[68495.610857] ata3.00: cmd c8/00:08:55:e8:8d/00:00:00:00:00/e2 tag 0 dma 4096 in
[68495.610859]          res 51/40:00:56:e8:8d/00:00:00:00:00/02 Emask 0x9 (media error)
[68495.610863] ata3.00: status: { DRDY ERR }
[68495.610865] ata3.00: error: { UNC }
[68495.799599] ata3.00: configured for UDMA/133
[68495.799620] sd 2:0:0:0: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
[68495.799626] sd 2:0:0:0: [sda] Sense Key : Medium Error [current] [descriptor]
[68495.799631] Descriptor sense data with sense descriptors (in hex):
[68495.799633]         72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 
[68495.799643]         02 8d e8 56 
[68495.799647] sd 2:0:0:0: [sda] Add. Sense: Unrecovered read error - auto reallocate failed
[68495.799653] end_request: I/O error, dev sda, sector 42854486
[68495.799675] ata3: EH complete
[68495.800096] sd 2:0:0:0: [sda] 625142448 512-byte hardware sectors (320073 MB)
[68495.817023] sd 2:0:0:0: [sda] Write Protect is off
[68495.817030] sd 2:0:0:0: [sda] Mode Sense: 00 3a 00 00
[68495.819042] sd 2:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[68495.826120] sd 2:0:0:0: [sda] 625142448 512-byte hardware sectors (320073 MB)
.....

I Have just replace the Hard Drive but the messages are still spaming my system. Any one could please help me ? I also attach the log from dmesg command output.

Thank You

U'm using Ubuntu 8.10 II
Proc 3.1 Ghz
Hard Drive 320 GB
Mem 2 GB

It's Kernel bug on ata acpi
Put "options libata noacpi=1" on /etc/modprobe.d/options
solved the problem