Invalid page fault, Operating System

Assignment Help:

 

Invalid page fault :If a page fault happens for a reference to an address that's not part of the virtual address space, so that there could not be a page in memory corresponding to it, then it is named an invalid page fault. The page fault handler in the operating system then requires ending the code that made the reference, or give an indication to that code that the reference was not valid. A null pointer is generally represented as a pointer to address 0 in the address space; various operating systems set up the memory management unit to show that the page that have that address is not in memory, and do not add that page in the virtual address space, so that attempts to write or read the memory referenced by a null pointer have an invalid page fault.

 


Related Discussions:- Invalid page fault

DOS, Ask question #Minimum 500 words accepted#

Ask question #Minimum 500 words accepted#

Explain lru page replacement, LRU page replacement In slightest recentl...

LRU page replacement In slightest recently used page replacement algorithm we will replace that page that hasn't been used for the longest period of time. This is similar as an

Structures for a file''s data, Q. Likewise some systems support many types ...

Q. Likewise some systems support many types of structures for a file's data while others simply support a stream of bytes. What are the merits in addition to demerits? Answer:

Define the properties of batch operating systems, Define the properties ope...

Define the properties operating systems: Batch :- Jobs with similar needs are batched together and  run through the computer as a group by an operator or automatic job sequenc

Explain the concept of process, Q. Explain the Concept of Process? A pr...

Q. Explain the Concept of Process? A process is sequential program in execution. A process states the basic unit of computation for the computer. Components of process are:

Semaphore, mention the three problems that mat be caused by wrong initializ...

mention the three problems that mat be caused by wrong initialization and placement of wait() and signal()operations in the use of semaphore

Most-recently used algorithm, Evicting the most-recently used (MRU) page do...

Evicting the most-recently used (MRU) page does very well on LRU's worst case. In general, however, MRU is a bad idea, since many programs exhibit temporal locality in their memory

Explain peterson''s solution for the critical section problem, Explain the ...

Explain the Peterson's solution for the critical section problem? In Peterson's solution two variables a) flag and b) turn are used as shared variables. If the both shared vari

Determine the scheduling technique, The scheduling technique in which CPU i...

The scheduling technique in which CPU is allocated to the process with least CPU-burst time is known as  Shortest job first Scheduling is a scheduling technique in which CPU i

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd