page fault(redirected from Pagefault)
page fault[′pāj ‚fȯlt]
An interruption that occurs while a page which is referred to by the program is being read into memory.
page fault(memory management)
In a paged virtual memory system, an access to a page (block) of memory that is not currently mapped to physical memory. When a page fault occurs the operating system either fetches the page in from secondary storage (usually disk) if the access was legitimate or otherwise reports the access as illegal.