When you start getting in-page errors on your hard drive, it’s time to go shopping for a new hard drive
The describes itself as "The instruction at XXX referenced memory at YYY. The required data was not placed into memory because of an I/O error status of ZZZ." What does this mean? It means that the memory manager needed to read some memory from the disk, but the disk returned an error. (Namely, error ZZZ.) Since it has no way to return an error ...