PROBE::VM.KFREE(3stap)

💖 PROBE::VM.KFREE 💖

okay bestie, welcome to the Memory Tapset corner of the SystemTap Tapset Reference — this one's a lil baby page but it's lowkey iconic, so let's go 🫶

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✨ NAME ✨

probe::vm.kfree — fires when kfree is requested

like. the moment somebody's like "okay this kernel memory? done, freeing it" — this probe shows up 💅

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🎀 SYNOPSIS 🎀

probe vm.kfree {}

that's it, that's the whole thing. no args, no drama, main character energy ✨

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🌸 VALUES 🌸

here's the tea you get handed when this probe fires 👑

• ptr — pointer to the kmemory allocated which is returned by kmalloc 🧚 like, it's pointing right at the chunk that's getting yeeted back to the kernel
• caller_function — name of the caller function. who exactly called this? now you know 💜
• name — name of the probe point 🎀 yes it's giving "the probe point's name", that's literally what it is
• call_site — address of the function calling this kmemory function 📍 the exact address, no cap

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🦋 SEE ALSO 🦋

• tapset::memory(3stap) — go read the memory tapset, bestie, it's the whole vibe 🌈

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fr fr, this probe is small but it slays. keep every one of those values, don't skip ptr, don't skip call_site. they all matter 💀

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SystemTap Tapset Reference Ver, September 2026 — that's a wrap, babe, tysm for reading, ily, go probe something cute 🌸🦋💖