What is page fault?

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Question: What is page fault?

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A page fault is a type of exception raised by computer hardware when a running program accesses a memory page that is not currently mapped by the memory management unit into the virtual address space of a process. A page fault occurs when a program attempts to access data or code that is in its address space, but is not currently located in the system RAM. A page fault (sometimes called #PF, PF or hard fault) is a type of exception raised by computer hardware when a running program accesses a memory page that is not currently mapped by the memory management unit (MMU) into the virtual address space of a process. A page fault occurs when a program attempts to access a block of memory that is not stored in the physical memory, or RAM. Page Fault in Virtual Memory watch more videos at https://www. Page Fault in OS occurs when the page referenced by the CPU is not found in main memory.

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Answered By:
Raj

Raj

Minneapolis, United States

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