The steps fpr handling a page fault:
(1)The memory address requested is first checked, to make sure it was a valid memory request.(2)lf the reference was invalid, the process is terminated. Otherwise, the page must be paged in.(3)A free frame is located, possibly from a free-frame list.
(4)A disk operation is scheduled to bring in the necessary page from disk. ( This will usully block the process on an l/O wat allowing some otherprocess to use the CPU in the meantime.)
(5)When the l/O operation is complete, the process's page table i updated with the new frame number ,and the invalid bit is changed to indicate thatthis is now a valid page reference.
(6)The instruction that caused the page fault must now be restarted from the begining,( as soon as this process gets another turn on the CPU.)