unwind_user_faultable(9)

✨ unwind_user_faultable(9) ✨

okay so this is a page from the Kernel API Manual, bestie — it's unwind_user_faultable(9) and it's literally about producing a user stacktrace in faultable context 💅 buckle up 🎀

---

🌸 NAME 🌸

unwind_user_faultable — produce a user stacktrace in faultable context 🫶

---

🦋 SYNOPSIS 🦋

int unwind_user_faultable (struct unwind_stacktrace *trace );

---

💖 ARGUMENTS 💖

• trace — the descriptor that's gonna store the user stacktrace ✨ like that's the whole vibe of this argument, it holds the goods 💅

---

👑 DESCRIPTION 👑

ok so hear me out 🙈 this one must be called in a known faultable context — usually that's when you're entering or exiting user space, iykyk ✨

depending on which implementations you've got available, the trace will get loaded up with the addresses of the user space stacktrace if it can be found 💖 that's it, that's the whole deal, no cap 🌈

---

⭐ RETURN ⭐

0 on success and negative on error 💀 and on success, trace will contain the user space stacktrace — slay 👑

---

🧚 SEE ALSO 🧚

• Kernel file ./kernel/unwind/deferred.c
• unwind_deferred_request(9)

go read those next, bestie, they're iconic 🎀

---

and that's the whole page fr fr 💜 this cutie came out of ./kernel/unwind and it's dated October 2026 — unwind_user_faultable(9) forever, periodt 🌸🦋✨