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This conference talk explores advanced kernel debugging techniques for embedded systems facing catastrophic failures. Learn how to prepare systems for scenarios where traditional debugging mechanisms fail due to software hang-ups, watchdog triggers, firmware crashes, or severe corruption. Discover methods for marking vital data ahead of time and mapping it into accessible lists, allowing debuggers, permanent storage, or remote processors to directly access critical information without requiring software handlers. The presentation demonstrates how to extract reliable kernel information even when the system cannot execute instructions, run panic handlers, or start recovery kernels, providing essential troubleshooting capabilities for complex embedded system failures.
