[Solved] What is wrong with this FreeRTOS idle hook implementation?void vApplicationIdleHook(void) { for(;;) { // background processing }} | FreeRTOS

FreeRTOS - Task Scheduling

What is wrong with this FreeRTOS idle hook implementation?

void vApplicationIdleHook(void) {
    for(;;) {
        // background processing
    }
}

AIt will cause a stack overflow immediately.

BIt correctly performs background work without issues.

CIt causes the idle task to never yield, blocking other tasks.

DIt disables the scheduler unintentionally.

Step-by-Step Solution

Solution:

Step 1: Analyze the infinite loop
The idle hook runs inside the idle task; an infinite loop here prevents the idle task from yielding.
Step 2: Consequence
This blocks other tasks from running, causing system issues.
Final Answer:
It causes the idle task to never yield, blocking other tasks. -> Option C
Quick Check:
Idle hook must not block or loop infinitely [OK]

Quick Trick: Idle hook must not block or loop infinitely [OK]

Common Mistakes:

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