Tracking Down Sources of Kernel Errors with Retsnoop

Explore the powerful BPF-based tool retsnoop for tracking down kernel errors and introspecting kernel functionality in this 47-minute conference talk from Kernel Recipes. Learn how to identify the source of -EINVAL errors from kernel syscalls without modifying the kernel or using printk()'s. Discover retsnoop's versatility as a general-purpose kernel tracing tool and see practical demonstrations of its application in debugging kernel issues and understanding kernel internals. Gain insights into retsnoop's functionality and flexible usage for efficient kernel troubleshooting and exploration.