for managing translation registers that are not automatically loaded from page tables.

Typically, a page fault that cannot be resolved results in an abnormal termination of the application. However, some systems allow the application to have exception handlers for such errors. The paging supervisor may handle a page fault exception in several different ways, depending on the details:
*If the virtual address is invalid, the paging supervisor treats it as an error.
*If the page is valid and the page information is not loaded into