PROBE::NFS.PROC.(3stap)

💅 PROBE::NFS.PROC.(3stap) — bestie's guide to the Network File Storage Tapsets

okay so you're reading the SystemTap Tapset Reference and you landed on this little cutie. welcome. this is the manual page for probe::nfs.proc.read_done, and yes it's a mouthful but we're gonna get through it together 🫶

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✨ NAME ✨

probe::nfs.proc.read_done — NFS client response to a read RPC task

like. that's the whole vibe. the NFS client got its answer back from a read RPC task and this probe is the girl who shows up to tell you about it 🎀

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🦋 SYNOPSIS 🦋

probe nfs.proc.read_done {}

that's it. no args, no nothing. she takes zero parameters and she's thriving 💅

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👑 VALUES 👑

these are the local variables she hands you when she fires. memorize them, they're iconic:

• prot — the transfer protocol. which flavor of transport we're talking over, bestie 🌈
• status — result of last operation. how did the last thing go? good? bad? this tells you ✨
• count — number of bytes read. the actual size of the read, no cap 📏
• timestamp — V4 timestamp, which is used for lease renewal. this is the NFSv4 girly keeping the lease alive so nothing times out on you 🕰️
• version — NFS version. which NFS we're on, bestie 💜
• server_ip — IP address of server. who you're talking to 🌸

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💖 DESCRIPTION 💖

so here's the tea. this probe fires when a reply to a read RPC task is received — or, plot twist, when some read error occurs. and when we say error we mean:

• a timeout, or
• a socket shutdown 😭

so like, it's the good ending and the bad ending. either the reply came home or the read gave up, and either way this probe is here to spill 🫶

ngl the "error" path is real and it will happen to you eventually. timeout and socket shutdown are both legit ways this fires, not just the happy reply case. don't get caught off guard fr fr 💀

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🌸 SEE ALSO 🌸

• tapset::nfs_proc(3stap) — go read this one next, it's the friend group she runs with 🧚

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and that's the whole page, bestie!! slay!! 💅✨

this was brought to you by the SystemTap Tapset Reference, version Ver, dated September 2026. periodt. 🎀🦋💖