In the article “every Boring Problem Found in eBPF” by @FridayOrtiz, the author shares the challenges faced while implementing Berkeley Packet Filters (BPF) as a telemetry source for a Linux endpoint security agent. The author discusses the benefits of using BPF, such as enhanced visibility, dynamic reinstrumentation, safety features, and speed. However, the article also addresses problems with BPF, including evolving usage beyond its original design and maintenance overlap between the Linux kernel’s BPF subsystem and userspace BPF tooling. Specific implementation issues related to the BPF verifier are highlighted, with solutions emphasizing the importance of thorough testing across different kernel versions for successful deployment.
https://tmpout.sh/2/4.html