How fork() duplicates a process without copying its memory

I made a visual explainer on how copy-on-write works in Linux.

When a 10 GB process calls fork(), Linux does not immediately copy 10 GB of memory. It duplicates the page tables, points both processes at the same physical pages, marks them read-only, and waits for the first write.

The video also covers things like page faults,exec(), Redis snapshots, Android Zygote, lazy zero pages, memory overcommit, COW storms, and some CVEs, etc

Link for anyone interested

Feedback welcome :)

https://redd.it/1v0uqx6
@r_linux