[Solved] In a FreeRTOS system, a low priority task holds a mutex and is preempted by a medium priority task.... What feature can you enable to prevent the high priority task from being starved? | FreeRTOS

FreeRTOS - Task Scheduling

In a FreeRTOS system, a low priority task holds a mutex and is preempted by a medium priority task. The high priority task is waiting for the mutex. What feature can you enable to prevent the high priority task from being starved?

ARound-robin scheduling

BTask notifications

CPriority ceiling protocol

DStatic task priorities

Step-by-Step Solution

Solution:

Step 1: Understand problem of medium priority preemption
Medium priority task preempting low priority task holding mutex causes high priority task starvation.
Step 2: Identify solution
Priority ceiling protocol raises low priority task priority to highest needed, preventing medium priority preemption.
Final Answer:
Priority ceiling protocol -> Option C
Quick Check:
Prevent starvation with B [OK]

Quick Trick: Use priority ceiling to block medium priority preemption [OK]

Common Mistakes:

Confusing round-robin with priority protocols
Thinking task notifications solve priority issues
Assuming static priorities fix starvation automatically

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More FreeRTOS Quizzes

What feature can you enable to prevent the high priority task from being starved?

Step 1: Understand problem of medium priority preemption

Step 2: Identify solution

Final Answer:

Quick Check:

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