nbcon_conte...uire_hostile(9)

📦 version 7.3.1, in nixpkgs unstable

💅 nbcon_context_try_acquire_hostile — Kernel API Manual

Okay so bestie, welcome to the Kernel API Manual entry for nbcon_conte...uire_hostile(9) — yes that's the truncated little name, we keep it exactly like that, no cap. This one is about grabbing the console in a way that is, and I cannot stress this enough, unsafe 🙈

✨ NAME ✨

nbcon_context_try_acquire_hostile — acquire via unsafe hostile takeover 👑🔥

Like, hostile. As in, you are not asking nicely. As in, main character energy but for a console lock.

🎀 SYNOPSIS 🎀

int nbcon_context_try_acquire_hostile (struct nbcon_context *ctxt ,
struct nbcon_state *cur );

That's it. That's the whole signature. Two args, one int back. Slay.

🦋 ARGUMENTS 🦋

  • ctxt — the context of the caller 💖 like, who's asking, basically. Your little caller ID.
  • cur — the current console state 🌸 the vibes of the console right now, at this exact moment.

💜 DESCRIPTION 💜

So here's the tea: this function acquires the console even in the unsafe state 😭 Like it does not care. It sees the unsafe state and it's like "and? I'm built different."

It can be permitted by setting the 'allow_unsafe_takeover' field — and hear me out — only by the final attempt to flush messages in panic 💀

ngl bestie, read that part twice. 'allow_unsafe_takeover' is only for that last-ditch panic-time message flush. Not a casual Tuesday thing. It's giving "break glass in case of emergency" but the glass is the console lock 🔥

🌈 RETURN 🌈

  • 0 on success 🫶 you got it, icon behavior
  • -EPERM when not allowed by the context 🙅‍♀️ the context said no and meant it

👑 SEE ALSO 👑

Kernel file ./kernel/printk/nbcon.c — go read it, iykyk ⭐

The whole nbcon friend group, fr fr:

and that's the whole page bestie 🧚💖 sourced straight from ./kernel/printk, dated October 2026, and it lives under the nbcon_conte...uire_hostile(9) header forever and ever. mwah 💋 go flush some messages — but like, safely 🍓

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