panic_try_force_cpu(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

🌸 NAME β€” panic_try_force_cpu(9) from the Kernel API Manual 🌸

okay so bestie, this is the tea β˜•: panic_try_force_cpu is literally about redirecting panic to a specific CPU for the crash kernel. no cap, that's the whole name-and-purpose moment πŸ’…


✨ SYNOPSIS ✨

bool panic_try_force_cpu (const char *fmt , va_list args );

that's the signature, character for character, don't come for me 🫢


πŸŽ€ ARGUMENTS πŸŽ€

  • fmt β€” the panic message format string, aka the words the panic is gonna say πŸ’¬
  • args β€” arguments for format string, the extra ingredient pile for that format string πŸ“

πŸ’– DESCRIPTION πŸ’–

okay so real talk: some platforms require panic handling to occur on a specific CPU for the crash kernel to function correctly. not me being dramatic, that's just the requirement 😭

This function redirects panic handling to the CPU specified via the panic_force_cpu= boot parameter. slay, targeted panic delivery 🎯✨

Returns false if panic should proceed on current CPU. Returns true if panic was redirected. literally the whole vibe check in two booleans πŸ’€


🌈 SEE ALSO 🌈

if you're going down the kernel panic rabbit hole, the Kernel file ./kernel/panic.c is right there, and these pages are the squad πŸ‘‘


mwah πŸ’‹ sign-off time: source/version is from ./kernel, dated October 2026, and this iconic page is panic_try_force_cpu(9). bye bestie, stay panic-free-ish πŸ«ΆπŸ’œ

πŸ“¦ where this page comes from