[   29.735114] vgaarb: device changed decodes: PCI:0000:00:01.0,olddecodes=io+mem,decodes=none:owns=io+mem
[ 1099.845687] atkbd serio0: Unknown key pressed (translated set 2, code 0x60 on isa0060/serio0).
[ 1099.845699] atkbd serio0: Use 'setkeycodes 60 <keycode>' to make it known.
[ 1099.904372] dell_wmi: Unknown key e027 pressed
[ 3332.827258] ata4: exception Emask 0x10 SAct 0x0 SErr 0x40d0000 action 0xe frozen
[ 3332.827269] ata4: irq_stat 0x00400040, connection status changed
[ 3332.827277] ata4: SError: { PHYRdyChg CommWake 10B8B DevExch }
[ 3332.827291] ata4: hard resetting link
[ 3333.720186] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 3333.730495] ata4.00: ATA-6: eSATA-2 ST3160316AS, JC4B, max UDMA/133
[ 3333.730506] ata4.00: 312581808 sectors, multi 0: LBA48 
[ 3333.742254] ata4.00: configured for UDMA/133
[ 3333.756133] ata4: EH complete
[ 3333.756368] scsi 3:0:0:0: Direct-Access     ATA      eSATA-2 ST316031 JC4B PQ: 0 ANSI: 5
[ 3333.756776] sd 3:0:0:0: [sdb] 312581808 512-byte logical blocks: (160 GB/149 GiB)
[ 3333.756872] sd 3:0:0:0: [sdb] Write Protect is off
[ 3333.756879] sd 3:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[ 3333.756923] sd 3:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 3333.757391] sd 3:0:0:0: Attached scsi generic sg2 type 0
[ 3333.763608]  sdb: sdb1
[ 3333.764517] sd 3:0:0:0: [sdb] Attached SCSI disk
[ 3354.147226] ata4: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0xe frozen
[ 3354.147236] ata4: irq_stat 0x00400000, PHY RDY changed
[ 3354.147245] ata4: SError: { Persist PHYRdyChg 10B8B }
[ 3354.147256] ata4: hard resetting link
[ 3354.868297] ata4: SATA link down (SStatus 0 SControl 300)
[ 3358.213629] ata4: hard resetting link
[ 3358.928292] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 3358.950432] ata4.00: configured for UDMA/133
[ 3358.964242] ata4: EH complete
[ 3470.973616] ata4: exception Emask 0x10 SAct 0x0 SErr 0x10202 action 0xe frozen
[ 3470.973626] ata4: irq_stat 0x00400000, PHY RDY changed
[ 3470.973635] ata4: SError: { RecovComm Persist PHYRdyChg }
[ 3470.973646] ata4: hard resetting link
[ 3471.696293] ata4: SATA link down (SStatus 0 SControl 300)
[ 3475.316617] ata4: hard resetting link
[ 3476.088293] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 3476.110407] ata4.00: configured for UDMA/133
[ 3476.124109] ata4: EH complete
[ 3485.325800] ata4: exception Emask 0x10 SAct 0x0 SErr 0x10200 action 0xe frozen
[ 3485.325810] ata4: irq_stat 0x00400000, PHY RDY changed
[ 3485.325819] ata4: SError: { Persist PHYRdyChg }
[ 3485.325829] ata4: hard resetting link
[ 3486.048296] ata4: SATA link down (SStatus 0 SControl 300)
[ 3491.048278] ata4: hard resetting link
[ 3491.368297] ata4: SATA link down (SStatus 0 SControl 300)
[ 3491.368316] ata4: limiting SATA link speed to 1.5 Gbps
[ 3496.368279] ata4: hard resetting link
[ 3496.688298] ata4: SATA link down (SStatus 0 SControl 310)
[ 3496.688316] ata4.00: disabled
[ 3496.704296] ata4: EH complete
[ 3496.704323] ata4.00: detaching (SCSI 3:0:0:0)
[ 3496.708337] sd 3:0:0:0: [sdb] Synchronizing SCSI cache
[ 3496.708448] sd 3:0:0:0: [sdb]  Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
[ 3496.708457] sd 3:0:0:0: [sdb] Stopping disk
[ 3496.708475] sd 3:0:0:0: [sdb] START_STOP FAILED
[ 3496.708480] sd 3:0:0:0: [sdb]  Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
[ 3504.467750] ata4: exception Emask 0x10 SAct 0x0 SErr 0x40d0002 action 0xe frozen
[ 3504.467760] ata4: irq_stat 0x00400040, connection status changed
[ 3504.467770] ata4: SError: { RecovComm PHYRdyChg CommWake 10B8B DevExch }
[ 3504.467784] ata4: hard resetting link
[ 3505.360288] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 3505.370631] ata4.00: ATA-6: eSATA-2 ST3160316AS, JC4B, max UDMA/133
[ 3505.370642] ata4.00: 312581808 sectors, multi 0: LBA48 
[ 3505.382483] ata4.00: configured for UDMA/133
[ 3505.396295] ata4: EH complete
[ 3505.396526] scsi 3:0:0:0: Direct-Access     ATA      eSATA-2 ST316031 JC4B PQ: 0 ANSI: 5
[ 3505.396912] sd 3:0:0:0: Attached scsi generic sg2 type 0
[ 3505.397244] sd 3:0:0:0: [sdb] 312581808 512-byte logical blocks: (160 GB/149 GiB)
[ 3505.397341] sd 3:0:0:0: [sdb] Write Protect is off
[ 3505.397349] sd 3:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[ 3505.397393] sd 3:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 3509.070151]  sdb: sdb1
[ 3509.070906] sd 3:0:0:0: [sdb] Attached SCSI disk
[ 3975.647637] ata4: exception Emask 0x10 SAct 0x0 SErr 0x90202 action 0xe frozen
[ 3975.647648] ata4: irq_stat 0x00400000, PHY RDY changed
[ 3975.647656] ata4: SError: { RecovComm Persist PHYRdyChg 10B8B }
[ 3975.647668] ata4: hard resetting link
[ 3976.368296] ata4: SATA link down (SStatus 0 SControl 300)
[ 3981.368228] ata4: hard resetting link
[ 3981.688296] ata4: SATA link down (SStatus 0 SControl 300)
[ 3981.688316] ata4: limiting SATA link speed to 1.5 Gbps
[ 3986.688281] ata4: hard resetting link
[ 3987.008244] ata4: SATA link down (SStatus 0 SControl 310)
[ 3987.008262] ata4.00: disabled
[ 3987.024297] ata4: EH complete
[ 3987.024323] ata4.00: detaching (SCSI 3:0:0:0)
[ 3987.027781] sd 3:0:0:0: [sdb] Synchronizing SCSI cache
[ 3987.027861] sd 3:0:0:0: [sdb]  Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
[ 3987.027870] sd 3:0:0:0: [sdb] Stopping disk
[ 3987.027888] sd 3:0:0:0: [sdb] START_STOP FAILED
[ 3987.027894] sd 3:0:0:0: [sdb]  Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
[ 3987.910549] ata4: exception Emask 0x10 SAct 0x0 SErr 0x40d0002 action 0xe frozen
[ 3987.910560] ata4: irq_stat 0x00400040, connection status changed
[ 3987.910569] ata4: SError: { RecovComm PHYRdyChg CommWake 10B8B DevExch }
[ 3987.910583] ata4: hard resetting link
[ 3988.804293] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 3988.814639] ata4.00: ATA-6: eSATA-2 ST3160316AS, JC4B, max UDMA/133
[ 3988.814650] ata4.00: 312581808 sectors, multi 0: LBA48 
[ 3988.826423] ata4.00: configured for UDMA/133
[ 3988.840294] ata4: EH complete
[ 3988.840512] scsi 3:0:0:0: Direct-Access     ATA      eSATA-2 ST316031 JC4B PQ: 0 ANSI: 5
[ 3988.840894] sd 3:0:0:0: Attached scsi generic sg2 type 0
[ 3988.841228] sd 3:0:0:0: [sdb] 312581808 512-byte logical blocks: (160 GB/149 GiB)
[ 3988.841325] sd 3:0:0:0: [sdb] Write Protect is off
[ 3988.841333] sd 3:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[ 3988.841377] sd 3:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 3992.467551]  sdb: sdb1
[ 3992.469484] sd 3:0:0:0: [sdb] Attached SCSI disk