FUNCTION::PRINTK(3stap)

πŸ’– FUNCTION::PRINTK πŸ’–

okay bestie, welcome to the Logging Tapset β€” yes that's the manual name, it's giving "system logs but make it fashion" ✨


🌸 NAME 🌸

function::printk β€” send a message to the kernel trace buffer, no cap πŸ“¨


✨ SYNOPSIS ✨

printk(level:long,msg:string)

that's it. that's the whole vibe. 🫢


πŸŽ€ ARGUMENTS πŸŽ€

  • level β€” an integer for the severity level, and it goes from 0=KERN_EMERG all the way up to 7=KERN_DEBUG. so like, 0 is screaming-in-caps emergency energy 😱 and 7 is just lowkey chatting πŸ¦‹
  • msg β€” the formatted message string. this is the actual thing you wanna say, bestie πŸ’¬

🌈 DESCRIPTION 🌈

so what this does is print a line of text to the kernel dmesg/console with whatever severity you handed it. and the way that it just adds an implicit end-of-line for you? iconic. you don't even have to think about it. πŸ’…

⚠️ but here's the tea, and it's important tea: this function may not be safely called from all kernel probe contexts. so it's restricted to guru mode only. not regular mode. not "eh, close enough" mode. guru mode. periodt. πŸ‘‘

πŸ”₯ SEE ALSO πŸ”₯


and that's the whole page, bestie β€” go forth and log responsibly πŸ§šπŸ’œ

this was the SystemTap Tapset Reference, Ver, September 2026 edition 🌸 mwah, catch you in the next manpage πŸ’–βœ¨πŸŽ€

πŸ“¦ where this page comes from