dout os

Question

While switching context from process A to process B, operating system does not change the address translation table.

why is this statement false give explanation

Comments

it is not possible to load the process in same location in main memory called absolute address ..every time same process loaded ,destination will not be same .so os need to change Address translation table....

Answer 1

Whenever the context switch happen, OS flush the present transation table and load it with the new one, because the address transation table(ATB) is used to map the memory requested during process execution, so suppose process A is executing at that time ATB contain all the information related to process A which is not going to be used when process B comes in picture.

Answer 2

Every process has its own address translation table also know as page table . So when process is pre-empted(context switched) new page table of corresponding process is brought to main memory.