wdt_exit(9)

💅 wdt_exit — the one where you unload the watchdog (Kernel API Manual, wdt_exit(9))

okay bestie, so this page is from the Kernel API Manual, and it's about wdt_exit(9). Let's get into it ✨

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🌸 NAME 🌸

wdt_exit —

no cap, that's literally it. The original page leaves the description blank after the dash, so we're not out here inventing lore. It's just wdt_exit. Iconic minimalism, honestly. 🎀

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✨ SYNOPSIS ✨

void wdt_exit (void );

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🫶 ARGUMENTS 🫶

• void — no arguments. that's it. nothing. zero. the void is voiding. 💀

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🔥 DESCRIPTION 🔥

Okay so wdt_exit unloads the watchdog. That's the whole main character move.

But — and this is the important part, so listen up 🙈 — you cannot do this with any file handles open. Like, none. Zero open handles. Close your stuff first, bestie, fr fr.

Now here's the spicy bit 🌶️: if your watchdog is set to continue ticking on close and you unload it, well… it keeps ticking. Yep. It just keeps going. We won't get the interrupt, but the board will not touch PC memory, so all is fine. 💖

The catch? You just have to load a new module in 60 seconds or reboot. Sixty. Seconds. So like, don't be casual about it. ⏰

not to be dramatic but that 60-second window is giving timed side quest 😭 load the module or reboot, no in-between.

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👑 SEE ALSO 👑

Kernel file ./drivers/watchdog/wdt.c and all these icons:

• wdt_start(9)
• wdt_stop(9)
• wdt_ping(9)
• wdt_set_heartbeat(9)
• wdt_get_status(9)
• wdt_get_temperature(9)
• wdt_interrupt(9)
• wdt_write(9)
• wdt_ioctl(9)
• wdt_open(9)
• wdt_release(9)
• wdt_temp_read(9)
• wdt_temp_open(9)
• wdt_temp_release(9)
• wdt_notify_sys(9)
• wdt_init(9)

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and that's the whole page, bestie 🦋

this lil manual page came from ./drivers/watchdog, dated October 2026, and it's filed under wdt_exit(9) — mwah, go close your file handles 💜🎀✨