PANIC(9)

okay bestie, welcome to PANIC(9), aka the Kernel Developer's Manual page about the ultimate “we’re done here” move: bringing the whole system down on a fatal error 💀✨

🌸 NAME 🌸

panic — bring down system on fatal error. periodt, that’s the whole vibe.

💫 SYNOPSIS 💫

#include <sys/types.h>
#include <sys/systm.h>

void
panic(const char *fmt, ...);

void
vpanic(const char *fmt, va_list ap);

💖 DESCRIPTION 💖

The panic() and vpanic() functions terminate the running system. fr fr, they end it. The message fmt is a printf(3) style format string. That message is printed to the console, and the location panicstr is set to the address of the message text for retrieval from the OS core dump. 📝💾

If the kernel debugger is installed control is passed to it, otherwise an attempt to save a core dump of the OS to a configured dump device is made. so it’s giving “debugger takes the wheel, or we try to dump the core” energy 🧚✨

If panic() is called twice (from the disk sync routines, for example) the system is rebooted without syncing the disks. ⚠️ yep, twice means reboot, and the disks do not get synced. highkey dramatic, but that’s literally the deal.

🫶 RETURN VALUES 🫶

The panic() function does not return. like, not even a little. it is not coming back, bestie. periodt 💅

mwah 💋 this page came from Debian, dated April 23, 2015, and it’s all about PANIC(9). stay safe out there, kernel bestie 🎀✨