When page fault happens in virtual memory management, what is the steps of OS to handle this situation?

Step1：Check an internal table for this process to determine whether the reference was a valid or invalid memory access.

Step2：If the reference was invalid, terminate the process. If it was valid, but we have not yet brought in that page, we now page it in.

Step3：Find a free fream.

Step4：Schedule a disk operation to read the desired page into the newly allocated fream.

Step5：Modify the internal table and page table after the desk read is complete.

Step6：Restart the instruction that was interrupted by the trap.