Question

Among priority inversion between two processes, one with high priority and other with low priority that share a critical section will cause which of the following problem?

• A. High priority process executes before low priority process and finishes faster than it should.
• B. Low priority process executes before high priority process and finishes faster than it should.
• C. High priority process waits for low priority process to finish, but the low priority process never gets scheduled.
• D. Low priority process changes priority temporarily to the priority of the high priority process.

Hint:

Priority inversion can be avoided using protocols like priority inheritance, where the low priority process temporarily inherits the priority of the high priority process.

Answer 1

The Correct Option is C

Priority inversion occurs when a low priority process holds a resource needed by a high priority process, and the high priority process ends up waiting for the low priority process to finish. This can lead to a situation where the low priority process never gets scheduled, as the high priority process is waiting.