Your question is Debug Watchdog Scheduling Issue. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Describe a time you diagnosed and resolved a watchdog-related kernel OS scheduling problem.
Explain the symptoms, evidence, hypotheses, diagnostic tools, root cause, corrective change, and how you verified the fix. Address watchdog behavior, scheduler interactions, interrupt or bottom-half latency, and the risk of masking the underlying fault.