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.
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| PAGE page paged Page Description Language Paged Memory Management Unit | fault General Protection Failure Memory Management Unit page fault prepaging | page in pagelet page mode Page Mode DRAM Page Mode Dynamic Random Access Memory |
