Anyone know what this might be about?

[1134036.271114] ata1.00: exception Emask 0x0 SAct 0x4 SErr 0x880000 action 0x6 frozen
[1134036.271478] ata1: SError: { 10B8B LinkSeq }
[1134036.271829] ata1.00: failed command: WRITE FPDMA QUEUED
[1134036.272182] ata1.00: cmd 61/20:10:e0:75:6e/00:00:11:00:00/40 tag 2 ncq 16384 out
                          res 40/00:01:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
[1134036.272895] ata1.00: status: { DRDY }
[1134036.273245] ata1: hard resetting link
[1134037.447033] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[1134038.747174] ata1.00: configured for UDMA/133
[1134038.747179] ata1.00: device reported invalid CHS sector 0
[1134038.747185] ata1: EH complete