Ahoy
A few days ago 2nd October to be exact you done a kernal update which resulted in a fsck, whatever happened from that point on is screwing with mysql, I have clients with multiple "Got error 28 from storage engine"
If someone could have a snout and check /tmp's cleared etc etc or give us a clue to if anything else changed that would be most a appreciative.
Kind Regards,
Fuzzy