I am 99.9999% sure that my HW is just fine as well... and, for grins, I turned off my hourly builds... so the HW is pretty much idle. I still see this message (not as much, but still occasionally) pop up - seems to be for no real reason. Nothing seems to break from it (all my VMs hum right along without issue), its just annoying to see and it pollutes my log files imo.
I am beginning to wonder if there is some sort of short-lived live-lock condition in ESXi 5.x... I never saw this message in 4.x. My HW is unchanged and has been working flawlesly as far as I can tell. I have a stock Dell PowerEdge T710.
Doug