x86_numa_init(9)

💅 NAME 💅

x86_numa_init — bestie, this is the one that initializes NUMA ✨ (yes, the whole Non-Uniform Memory Access vibe, she's a big deal)

So like, we're in the Kernel API Manual today, and this page is literally all about getting NUMA set up. Slay.

---

🌸 SYNOPSIS 🌸

void x86_numa_init (void );

That's it. That's the whole call. No args, no drama, she just goes. 🎀

---

🦋 ARGUMENTS 🦋

• void — no arguments, periodt. Nothing to pass in, nothing to configure at the call site. She takes zero notes and needs zero input, iykyk 💅

---

✨ DESCRIPTION ✨

Okay so here's the tea: x86_numa_init tries each configured NUMA initialization method, one after another, until one of them actually succeeds. Like auditioning candidates for the lead role and stopping at the first one who doesn't fumble their lines 🌟

And the last fallback? The final safety net? That's a dummy single node config encompassing whole memory — and it never fails. Ever. Iconic behavior honestly, main character energy, she will always come through for you 🫶 No cap, you are never left with nothing.

---

🔥 SEE ALSO 🔥

• Kernel file ./arch/x86/mm/numa.c — go read the source, bestie, it's all there 👀
• dummy_numa_init(9) — the fallback queen herself 💖

---

Lowkey reminder: that dummy fallback is not a bug, it's a feature — one node covering all the memory, never failing, keeping your boot alive. Respect her 🧚

---

and that's the page!! 🌈 This little gem lives over in ./arch/x86/mm, it's dated October 2026, and the page itself is x86_numa_init(9) — mwah, go forth and init your NUMA, you've got this 💜🍓