Ever wondered what happens behind the scenes when your process hits a memory glitch? In this episode of The Backend Engineering Show, Hussein Nasser dives into virtual memory and VMAs, then unpacks every flavor of page fault—from first-access and stack expansions to copy-on-write, swapping, file-backed faults and even permission wrangles—and why they come with a performance cost.
He peppers the 45-minute deep dive with handy timestamps (0:00 intro, 4:00 virtual memory, 12:00 VMA areas, 19:50 kernel mode, 25:30 page faults, 30–45:30 fault types, 45:30 summary) so you can zip to your favorite section. And if you’re hungry for more, the description links out to his OS fundamentals course plus deep dives on Node.js, networking, databases, NGINX, Python and more to supercharge your backend skill set.
Watch on YouTube
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