The following is a snipped excerpt from dmesg. The relevant section in whole can be seen here.
exception Emask 0x2 SAct 0xc SErr 0x0 action 0x2 frozen
(spurious completions during NCQ issue=0x0 SAct=0xc FIS=005040a1:00000001)
I keep getting these strange kernel messages at boot up. If you know what they are, please tell me. If I have a disk that is just waiting to fail on me, I would like to know…