Dec 14, 2025 · This site is operated by the Linux Kernel Organization, a 501 (c)3 nonprofit corporation, with support from the following sponsors.

Dec 3, 2025 · Unless you downloaded, compiled and installed your own version of kernel from kernel.org, you are running a distribution kernel. To find out the version of your kernel, run uname -r:

The following manuals are written for users of the kernel — those who are trying to get it to work optimally on a given system and application developers seeking information on the kernel’s user …

There are a great many reasons why kernel code should be merged into the official (“mainline”) kernel, including automatic availability to users, community support in many forms, and the ability to …

Linux kernel for ARC processors Feature status on arc architecture ARM Architecture ARM Linux 2.6 and upper Booting ARM Linux Cluster-wide Power-up/power-down race avoidance algorithm …

Note the kernel will remain tainted even after you undo what caused the taint (i.e. unload a proprietary kernel module), to indicate the kernel remains not trustworthy.

Feb 6, 2022 · It supports all new drivers that have been added to the kernel recently. The old tool iwconfig, which uses Wireless Extensions interface, is deprecated and it’s strongly recommended to …

Feb 6, 2022 · You can determine if your kernel currently has firmware loader support by looking for the CONFIG_FW_LOADER definition on your kernel’s .config file. In addition to having the …

Kernel Build System ¶ Kconfig Language Kconfig macro language Kbuild Configuration targets and editors Linux Kernel Makefiles Building External Modules Exporting kernel headers for use by …

It’s advisable to use a kernel binary built with the same AutoFDO configuration to collect the perf profile. While it’s possible to use a kernel built with different options, it may result in inferior performance.