robin@triton ~ $ dmesg | grep ata2
[    1.184717] ata2: SATA max UDMA/133 abar m2048@0xf7a22000 port 0xf7a22180 irq 45
[    3.740969] ata2: SATA link down (SStatus 1 SControl 300)
[    3.741480] ata2: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xe frozen
[    3.741481] ata2: irq_stat 0x00000040, connection status changed
[    3.741483] ata2: SError: { CommWake DevExch }
[    3.741487] ata2: hard resetting link
[    5.970774] ata2: SATA link down (SStatus 1 SControl 300)
[    5.971640] ata2: EH complete
[    5.972319] ata2: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xe frozen
[    5.972909] ata2: irq_stat 0x00000040, connection status changed
[    5.973547] ata2: SError: { CommWake DevExch }
[    5.974166] ata2: limiting SATA link speed to 1.5 Gbps
[    5.974724] ata2: hard resetting link
[    8.204562] ata2: SATA link down (SStatus 1 SControl 310)
[    8.204571] ata2: EH complete
[    8.205016] ata2: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xe frozen
[    8.206113] ata2: irq_stat 0x00000040, connection status changed
[    8.207012] ata2: SError: { CommWake DevExch }
[    8.207684] ata2: limiting SATA link speed to 1.5 Gbps
[    8.207686] ata2: hard resetting link
[   10.434367] ata2: SATA link down (SStatus 1 SControl 310)
[   10.434376] ata2: EH complete
[   10.434894] ata2: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xe frozen
[   10.436112] ata2: irq_stat 0x00000040, connection status changed
[   10.437266] ata2: SError: { CommWake DevExch }
[   10.438508] ata2: limiting SATA link speed to 1.5 Gbps
[   10.438511] ata2: hard resetting link
[   12.676191] ata2: SATA link down (SStatus 1 SControl 310)
[   12.676200] ata2: EH complete
[   12.676664] ata2: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xe frozen
[   12.677698] ata2: irq_stat 0x00000040, connection status changed
[   12.678611] ata2: SError: { CommWake DevExch }
[   12.679560] ata2: limiting SATA link speed to 1.5 Gbps
[   12.679563] ata2: hard resetting link
[   14.905972] ata2: SATA link down (SStatus 1 SControl 310)
[   14.905988] ata2: EH complete