What does page fault mean?
Definitions for page fault
page fault
This dictionary definitions page includes all the possible meanings, example usage and translations of the word page fault.
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Wiktionary
page faultnoun
An alert (such as an interrupt or exception) indicating that a page of memory was accessed without being loaded.
Wikipedia
Page fault
In computing, a page fault (sometimes called PF or hard fault) is an exception that the memory management unit (MMU) raises when a process accesses a memory page without proper preparations. Accessing the page requires a mapping to be added to the process's virtual address space. Besides, the actual page contents may need to be loaded from a backing store, such as a disk. The MMU detects the page fault, but the operating system's kernel handles the exception by making the required page accessible in the physical memory or denying an illegal memory access. Valid page faults are common and necessary to increase the amount of memory available to programs in any operating system that uses virtual memory, such as Windows, macOS, and the Linux kernel.
Wikidata
Page fault
A page fault is a trap to the software raised by the hardware when a program accesses a page that is mapped in the virtual address space, but not loaded in physical memory. In the typical case the operating system tries to handle the page fault by making the required page accessible at a location in physical memory or terminates the program in the case of an illegal access. The hardware that detects a page fault is the memory management unit in a processor. The exception handling software that handles the page fault is generally part of the operating system. Contrary to what the name 'page fault' might suggest, page faults are not always errors and are common and necessary to increase the amount of memory available to programs in any operating system that utilizes virtual memory, including Microsoft Windows, Unix-like systems, and z/OS. Microsoft uses the term hard fault in more recent versions of the Resource Monitor to mean 'page fault'.
Numerology
Chaldean Numerology
The numerical value of page fault in Chaldean Numerology is: 3
Pythagorean Numerology
The numerical value of page fault in Pythagorean Numerology is: 8
Translations for page fault
From our Multilingual Translation Dictionary
- σφάλμα σελίδαςGreek
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"page fault." Definitions.net. STANDS4 LLC, 2024. Web. 26 Apr. 2024. <https://www.definitions.net/definition/page+fault>.
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