RTOS Debug

Overview

Use this skill to debug RTOS problems by separating scheduler state, task stack health, synchronization, interrupt priority, timing, and resource ownership. Start from observable RTOS state before changing priorities or adding delays.

When To Use

Use this skill when:

• Firmware uses FreeRTOS, RT-Thread, Zephyr, ThreadX, CMSIS-RTOS, or another embedded scheduler.
• The user reports deadlock, starvation, missed events, queue timeout, stack overflow, watchdog reset, priority inversion, or task not running.
• The issue involves ISR-to-task signaling, timers, semaphores, mutexes, message queues, or task notifications.

Do not use this skill before the target is known to boot and run at least some firmware. For RTOS-specific deep dives, prefer freertos-kernel-debug, zephyr-integration, or rt-thread-integration when the RTOS is identified.

First Questions

Ask for: