reserve_crashkernel(9)

✨ reserve_crashkernel(9) ✨

okay so bestie, this page is straight out of the Kernel API Manual, and it's serving one very specific job. No cap. Let's get into it 🫶

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🎀 NAME 🎀

reserve_crashkernel — reserves memory are for crash kernel 💅

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🌸 SYNOPSIS 🌸

void reserve_crashkernel (void );

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🦋 ARGUMENTS 🦋

• void — no arguments. Literally none. Zero. The void is voiding 🙈

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⭐ DESCRIPTION ⭐

Okay so reserve_crashkernel reserves the memory area given in the "crashkernel=" kernel command line parameter. That reserved memory is used by a dump capture kernel when the primary kernel is crashing. That's the whole plot: stash the memory so the crash-time capture kernel can do its thing 💖

no invented extras here, bestie — it reserves that memory area and that memory is for the dump capture kernel when the primary kernel is crashing. periodt.

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🔥 SEE ALSO 🔥

• Kernel file ./arch/arm/kernel/setup.c
• smp_build_mpidr_hash(9)

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mwah 💋 this little page lives under ./arch/arm/kernel and is dated October 2026 — catch u later, bestie 🫶✨