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O que (quem) é page faults - definição
ABNORMAL CONDITION OR DEFECT AT THE COMPONENT, EQUIPMENT, OR SUB-SYSTEM LEVEL WHICH MAY LEAD TO AN EQUIPMENT FAILURE
Random fault; Systematic fault; Systematic faults; Random faults
page fault
WHEN A RUNNING PROGRAM ACCESSES A MEMORY PAGE THAT IS NOT CURRENTLY MAPPED BY THE MMU INTO THE VIRTUAL ADDRESS SPACE OF A PROCESS
Invalid page fault; Pagefault; Hard 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.
(1995-11-11)
Page fault
WHEN A RUNNING PROGRAM ACCESSES A MEMORY PAGE THAT IS NOT CURRENTLY MAPPED BY THE MMU INTO THE VIRTUAL ADDRESS SPACE OF A PROCESS
Invalid page fault; Pagefault; Hard 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.
![Lord Patten]], robed as [[Chancellor of Oxford University]], assisted by a page.](https://commons.wikimedia.org/wiki/Special:FilePath/Chris Patten.jpg?width=200 "Lord Patten]], robed as [[Chancellor of Oxford University]], assisted by a page.")
![''The Queen and the Page'', by [[Marianne Stokes]], 1896.](https://commons.wikimedia.org/wiki/Special:FilePath/Marianne Stokes - The Queen and the Page.jpg?width=200 "''The Queen and the Page'', by [[Marianne Stokes]], 1896.")
![Alof de Wignacourt and his page]]'', by [[Caravaggio]], c. 1608.](https://commons.wikimedia.org/wiki/Special:FilePath/Portrait of Alof de Wignacourt and his Page-Caravaggio (1607-1608).jpg?width=200 "Alof de Wignacourt and his page]]'', by [[Caravaggio]], c. 1608.")
Wikipédia
Fault (technology)
In document ISO 10303-226, a fault is defined as an abnormal condition or defect at the component, equipment, or sub-system level which may lead to a failure.
In telecommunications, according to the Federal Standard 1037C of the United States, the term fault has the following meanings:
- An accidental condition that causes a functional unit to fail to perform its required function. See § Random fault.[1]
- A defect that causes a reproducible or catastrophic malfunction. A malfunction is considered reproducible if it occurs consistently under the same circumstances. See § Systematic fault.
- In power systems, an unintentional short circuit, or partial short circuit, between energized conductors or between an energized conductor and ground. A distinction can be made between symmetric and asymmetric faults. See Fault (power engineering).
