pr_emerg(9)

💅 pr_emerg — the Kernel API Manual, but make it cute 💅

okay so bestie, welcome to the pr_emerg(9) page — this is Kernel API Manual territory, and we're about to get into it 🫶

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✨ NAME ✨

pr_emerg — print an emergency-level message 🚨 like this is the loudest, most dramatic print in the whole kernel and it knows it 💅

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🌸 SYNOPSIS 🌸

pr_emerg (fmt , ... );

that's it, that's the whole vibe. args in, message out, chaos ensues 💖

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🎀 ARGUMENTS 🎀

• fmt — the format string, aka the blueprint of your message, the main character of this whole operation 👑
• ... — the arguments for the format string, aka the supporting cast that fills in all the blanks 🦋

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⭐ DESCRIPTION ⭐

so here's the tea: this macro expands to a printk with KERN_EMERG loglevel. KERN_EMERG, bestie. the emergency level. the it's-giving-the-system-is-on-fire level 😭🔥

and it uses pr_fmt to generate the format string — yep, pr_fmt is the one doing the formatting glow-up behind the scenes ✨ iykyk.

no cap, this is highkey the most serious loglevel there is, so use it when you mean it 💀

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🌈 SEE ALSO 🌈

• Kernel file ./include/linux/printk.h
• printk_cpu_sync_get_irqsave(9)
• printk_cpu_sync_put_irqrestore(9)
• pr_fmt(9)
• printk(9)
• pr_alert(9)
• pr_crit(9)
• pr_err(9)
• pr_warn(9)
• pr_notice(9)
• pr_info(9)
• pr_cont(9)
• pr_devel(9)
• pr_debug(9)
• print_hex_dump_bytes(9)

like, go read them, they're all iconic in their own way 👑

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aaaand that's the page babe 💖 this little gem lives over in ./include/linux and the version we're stanning is the October 2026 one — mwah, sending you kisses and clean logs 🧚🎀✨