0xAX/linux-insides resource

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

32958 stars · 3547 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

An open-source, in-progress book about the Linux kernel internals, covering booting, initialization, interrupts, system calls, memory management, and other low-level topics. It is written for developers with C and x86_64 assembly knowledge who want to understand how the kernel works under the hood.

Use cases

• learn how the Linux kernel boots from the bootloader
• understand Linux kernel memory management internals
• study how system calls are implemented in the kernel
• learn about interrupts and interrupt handlers in Linux
• understand kernel synchronization primitives like spinlocks and mutexes
• prepare for contributing to the Linux kernel
• learn x86_64 fundamentals like paging and the IDT

When to choose

• you want a free, in-depth, source-code-driven explanation of Linux kernel internals
• you already know C and some x86_64 assembly and want to go deeper into the kernel
• you are preparing to read or contribute to kernel source code

When to avoid

• you need a beginner-friendly introduction to Linux without assembly or C background
• you need complete, up-to-date coverage of the latest kernel - many chapters are still pending review for modern kernels
• you need a hands-on kernel development tutorial rather than conceptual internals explanations

Facets

learning-resource · maturity active

documentation operating-systems tutorials developer-tools cpp c linux-kernel kernel-internals book open-source-book x86-64 assembly booting memory-management system-calls interrupts linux

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