[Solved] Why might Method 2 stack overflow detection fail to detect an overflow in some cases? — Ans: Because the canary pattern can be overwritten without corrupting the stack... | FreeRTOS

FreeRTOS - Memory Management

Why might Method 2 stack overflow detection fail to detect an overflow in some cases?

ABecause Method 2 disables the stack pointer check

BBecause Method 2 only works on single-core processors

CBecause the hook function is called before overflow occurs

DBecause the canary pattern can be overwritten without corrupting the stack pointer

Step-by-Step Solution

Solution:

Step 1: Understand limitations of Method 2
Method 2 relies on a canary pattern at stack end; if overflow overwrites stack but not canary, overflow may go undetected.
Step 2: Analyze options
Because the canary pattern can be overwritten without corrupting the stack pointer correctly states this limitation; others are incorrect or irrelevant.
Final Answer:
Because the canary pattern can be overwritten without corrupting the stack pointer -> Option D
Quick Check:
Method 2 can miss overflow if canary not corrupted [OK]

Quick Trick: Canary may not detect all overflows if not corrupted [OK]

Common Mistakes:

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Why might Method 2 stack overflow detection fail to detect an overflow in some cases?