Posts tagged Debugging

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Filter: C Containers Debugging Linux Internals Namespaces Networking Reverse Engineering cgroups cloudflare concurrency freertos go infrastructure isr meta networking python quic runtime security systemd systems x86-64
Aug 20, 2026 • 16 min read

fds Are Namespace-Agnostic, Paths Are Not

War stories from building a container runtime in C — the assumptions the Linux kernel quietly refused to honor, why nearly every one slipped past a green test suite, and the tag and error number to check each claim against.

C Linux Internals Containers Namespaces Debugging