PROBE::NFS.PROC.(3stap)

✨ NAME ✨

probe::nfs.proc.write — bestie, this is the NFS client synchronously writing a file to the server probe 💅

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🌸 SYNOPSIS 🌸

probe nfs.proc.write {}

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🎀 VALUES 🎀

These are all the lil values you get handed when this probe fires, no cap:

• size — the bytes read in this execution 👀
• server_ip — the IP address of the server, aka who we're talking to 🌐
• version — the NFS version (iykyk which one you're on)
• flags — used to set task->tk_flags inside the rpc_init_task function 🚩
• offset — the file offset, like where in the file we're vibing 📍
• bitmask1 — V4 bitmask representing the set of attributes supported on this filesystem 🗂️
• bitmask0 — V4 bitmask representing the set of attributes supported on this filesystem 🗂️ (yes bestie, twin bitmasks, iconic)
• prot — transfer protocol, the whole delivery vibe 📦

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🦋 DESCRIPTION 🦋

Okay so here's the tea and it's kind of devastating 😭: all the nfs.proc.write kernel functions were removed in kernel commit 200baa in December 2006. So these probes do not exist on Linux 2.6.21 and newer kernels. She's gone, bestie, she's not coming back 💀

So if you're on anything modern and you're out here looking for this probe — that's why the vibe check keeps failing. It literally isn't there anymore. ✨

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👑 SEE ALSO 👑

• tapset::nfs_proc(3stap) 🫶

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This was your girl, reporting live from the SystemTap Tapset Reference — Ver, September 2026 edition. Stay hydrated, read your tapset docs, and remember: no probe, no problem 💖✨🎀🦋🌸