(n.) An interrupt caused by the failure to find a needed page in virtual memory.
The interrupt that occurs when software attempts to read from or write to a virtual memory location that is marked “not present.†The mapping hardware of a virtual memory system maintains status information about every page in the virtual address space. A page either is mapped onto a physical address or is not present in physical memory. When a read or write to an unmapped virtual address is detected, the memory management hardware generates the page fault interrupt. The operating system must respond to the page fault by swapping in the data for the page and updating the status information in the memory management unit.
An interrupt that occurs when a program requests data that is not currently in virtual memory.
a hardware or software interrupt (depending on implementation) which passes control to the operating system
an event that occurs when attempting to access memory that is not in real RAM but is sitting on disk in virtual memory
an exception which is raised by the memory management unit when a needed page is not mapped in
An OS interrupt that occurs when the OS is forced to access the hard drive to satisfy the demands for virtual memory.
A hardware event that occurs when a process tries to access an address in virtual memory that does not have a location in physical memory associated with it. In response, the system tries to load the appropriate data into a newly assigned physical page.
An error that occurs when the requested code or data cannot be located in the physical memory that is available to the requesting process.
A problem resulting in the possible loss of data. A high page fault rate is an indication of a memory-bound situation.
This is not an error, as "fault" would usually indicate. It simply means that the computer had to resort to using the swap file as memory. If you are getting...
A program interruption that occurs when a page that is marked "not in real memory" is referred to by an active page.
An instruction to the virtual memory subsystem to locate a requested page and make the virtual-to-physical address translation in the page table.
The interrupt that occurs when software attempts to read from or write to a virtual memory location that is marked not present. In Task Manager, page fault is the number of times data has to be retrieved from disk for a process because it was not found in memory. The page fault value accumulates from the time the process started. See also: Page Faults Delta; Task Manager; virtual memory
In computer storage technology, a page fault is an interrupt (or exception) to the software raised by the hardware, when a program accesses a page that is not mapped in physical memory. The software that handles the page fault is generally part of an operating system and the hardware that detects this situation is the memory management unit in processors. Then an operating system can try to handle the page fault by making the required page accessible at a location in physical memory or kill the program in case it is an illegal access.