Kernel messages (failure) with MV6121 controler

[Joao Luis Meloni Assirati]

Hello,

With an MV6121 and Linux 2.6.25.3 I get the following messages that end up 
kicking off a drive (hda2) from a raid 5 software array:

ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata1.00: cmd b0/d0:01:00:4f:c2/00:00:00:00:00/00 tag 0 pio 512 in
         res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1: hard resetting link
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata1.00: configured for UDMA/133
ata1: EH complete
sd 0:0:0:0: [sda] 625142448 512-byte hardware sectors (320073 MB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support 
DPO
 or FUA
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata1.00: cmd b0/d0:01:00:4f:c2/00:00:00:00:00/00 tag 0 pio 512 in
         res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1: hard resetting link
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata1.00: configured for UDMA/133
ata1: EH complete
sd 0:0:0:0: [sda] 625142448 512-byte hardware sectors (320073 MB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support 
DPO
 or FUA
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata1.00: cmd c8/00:08:64:94:5b/00:00:00:00:00/e1 tag 0 dma 4096 in
         res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1: hard resetting link
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata1.00: qc timeout (cmd 0xec)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1.00: revalidation failed (errno=-5)
ata1: failed to recover some devices, retrying in 5 secs
ata1: hard resetting link
ata1: failed to reset engine (errno=-5)
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata1.00: qc timeout (cmd 0xec)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1.00: revalidation failed (errno=-5)
ata1: failed to recover some devices, retrying in 5 secs
ata1: hard resetting link
ata1: failed to reset engine (errno=-5)
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata1.00: qc timeout (cmd 0xec)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1.00: revalidation failed (errno=-5)
ata1.00: disabled
ata1: hard resetting link
ata1: failed to reset engine (errno=-5)
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata1: EH complete
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 22778980
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 620263884
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 620263900
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 622967180
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 622967212
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 622967228
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 619887980
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 619895436
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 620034972
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 624180540
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 13693836
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 14874036
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 16707964
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 16970916
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 22273532
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 22273604
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 22273644
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 22273684
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 22275884
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 44494092
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 619887988
sd 0:0:0:0: [sda] Result: hostbyte=0x04 driverbyte=0x00
end_request: I/O error, dev sda, sector 248332
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