PROBE::VM.PAGEFAUL(3stap)

💖 probe::vm.pagefault.return — the Memory Tapset's little gossip girl 💖

okay bestie, so this page lives in the Memory Tapset section of the SystemTap Tapset Reference, and it's all about the probe point vm.pagefault.return. she's short, she's sweet, she tells you what kind of page fault just happened. no cap. 🦋

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✨ NAME ✨

probe::vm.pagefault.return — she indicates what type of fault occurred 💅

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🌸 SYNOPSIS 🌸

probe vm.pagefault.return {}

that's it. that's the whole vibe. a probe with no arguments, no fuss, just chilling and waiting to tell you the tea. 🫶

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🎀 VALUES 🎀

here's where it gets juicy. these are the variables you can peek at inside the probe:

• fault_type — the moment of truth, the main character of this whole page. she returns one of four numbers, and each one is a different flavour of fault:
  • 0 (VM_FAULT_OOM) — out of memory fault. the system was like "girl i have nothing left to give" 😭
  • 2 (VM_FAULT_MINOR) — a minor fault. small, lowkey, handled quick ✨
  • 3 (VM_FAULT_MAJOR) — a major fault. big drama, heavy lifting 🔥
  • 1 (VM_FAULT_SIGBUS) — for when the fault was neither OOM, nor a minor fault, nor a major fault. she's the "none of the above" option 💀

so yeah, note that the order is 0, 2, 3, 1 — not 0,1,2,3. iconic of her honestly, keeping us on our toes. 👑

• name — the name of the probe point. literally just the name. sometimes you just need to know who you're talking to, yk? 🏷️

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🧚 SEE ALSO 🧚

• tapset::memory(3stap) — go read the memory tapset page too, she's the whole friend group 💜

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fr fr, that's the entire page. no hidden lore, no deprecated warnings, no bug notes. just four fault types and a probe name. we love a concise queen. 💖

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and that's a wrap, bestie! this page came to you from the SystemTap Tapset Reference, dated September 2026. go forth and debug your page faults with main character energy, ily, bye! 👑✨🎀