[Solved] In FreeRTOS, what information does the stack high water mark provide about a task's stack usage? — Ans: The minimum amount of free stack space remaining since the task started | FreeRTOS

FreeRTOS - Debugging and Monitoring

In FreeRTOS, what information does the stack high water mark provide about a task's stack usage?

AThe total stack size allocated to the task

BThe minimum amount of free stack space remaining since the task started

CThe current stack pointer address

DThe maximum stack usage in bytes during the last context switch

Step-by-Step Solution

Solution:

Step 1: Understand stack high water mark
The stack high water mark indicates the minimum free stack space that has been available since the task started running.
Step 2: Differentiate from other options
It is not the total stack size (B), current stack pointer (C), or max usage in bytes during context switch (D).
Final Answer:
The minimum amount of free stack space remaining since the task started -> Option B
Quick Check:
Stack high water mark = minimum free stack space [OK]

Quick Trick: Minimum free stack space since task start [OK]

Common Mistakes:

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