I've been seeing the following lines in our ESXi 5 deployment and cannot find information on what this error means.
2013-05-31T13:40:05.294Z| vcpu-0| W110: DMA port 0: bad 4 byte access (1): 0x0
2013-05-31T13:40:05.294Z| vcpu-0| W110: DMA port 4: bad 4 byte access (1): 0x44c00249
I'm guessing that these are disk accesses. I just don't know what would cause these? Bad driver? Bad Hardware?