Dec 3, 2025 · These kernel releases are not hosted at kernel.org and kernel developers can provide no support for them. It is easy to tell if you are running a distribution kernel.

The parameters listed below are only valid if certain kernel build options were enabled and if respective hardware is present. The text in square brackets at the beginning of each description states the …

The kernel image is placed in this reserved space during kernel page tables initialisation as discussed in Section 3.6.1. Somewhere shortly after the image, the mem_map for UMA architectures, as …

Throughout the kernel are hundreds of static event points that can be enabled via the tracefs file system to see what is going on in certain parts of the kernel.

For detailed information on how the kernel development process works, see A guide to the Kernel Development Process. Also, read Linux Kernel patch submission checklist for a list of items to check …

This is a short document describing the preferred coding style for the linux kernel. Coding style is very personal, and I won’t force my views on anybody, but this is what goes for anything that I have to be …

Basic Kernel Library Functions ¶ The Linux kernel provides more basic utility functions.

This macro copies a single simple value from kernel space to user space. It supports simple types like char and int, but not larger data types like structures or arrays.

Kdump uses kexec to quickly boot to a dump-capture kernel whenever a dump of the system kernel’s memory needs to be taken (for example, when the system panics).

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