Linux Didn't Fix Its Foundations. It Buried Them.

0:00 — We Don't Use Rockets Anymore 0:28 — PID 1: The Number You Can't Have 2:45 — Signals: Ghosts From 1972 4:55 — Zombies and Orphans: Who Collects the Dead 6:50 — Everything Is a File: The Genius We Pay For 9:00 — The Core Doesn't Lie Beneath every container, every pod, every systemd unit — beneath Docker, Kubernetes, and fifty years of abstraction — there is a layer of code that hasn't changed since the 1970s. This video is not a tutorial. It's an excavation. We go deep into five mechanisms that were designed for a world of 144KB PDP-7 machines and rotary disk drives — and that still govern, without apology, every Linux system on the planet. ▸ PID 1 and the process hierarchy conceived in 1969 ▸ POSIX signals — the asynchronous interrupts that interrupt everything ▸ Zombie processes and orphan reaping in Kubernetes clusters ▸ select(), poll(), epoll() — and why the file model isn't enough ▸ io_uring — the acknowledgement that something had to change This is not history. This is the infrastructure running under your feet right now. PID 1 / exec() / Process Hierarchy The UNIX Time-Sharing System — Ritchie & Thompson 1974 https://dl.acm.org/doi/10.1145/361011... POSIX Signals / eBPF BPF Performance Tools — Brendan Gregg https://www.brendangregg.com/bpf-perf... Zombies / Orphans / Kubernetes Borg, Omega, and Kubernetes — Burns, Grant, Oppenheimer, Brewer, Wilkes https://dl.acm.org/doi/10.1145/289844... select / poll / epoll / io_uring Efficient IO with io_uring — Jens Axboe https://kernel.dk/io_uring.pdf "Everything is a file" / Unix philosophy Program Design in the UNIX Environment — Pike & Kernighan 1984 https://harmful.cat-v.org/cat-v/unix_...