Lf320 Linux Kernel Internals And Debugging
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Lf320 Linux Kernel Internals And Debugging
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Author : Linux Foundation
language : en
Publisher:
Release Date : 2010-04-29
Lf320 Linux Kernel Internals And Debugging written by Linux Foundation and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-04-29 with categories.
Linux Kernel Internals and Debugging is designed to provide experienced programmers with a solid understanding of the Linux kernel. Upon mastering this material, you will have a basic understanding of the Linux architecture, kernel algorithms, hardware and memory management, modularization techniques and debugging.
Linux Kernel Debugging
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Author : Kaiwan N. Billimoria
language : en
Publisher: Packt Publishing Ltd
Release Date : 2022-08-05
Linux Kernel Debugging written by Kaiwan N. Billimoria and has been published by Packt Publishing Ltd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-08-05 with Computers categories.
Effectively debug kernel modules, device drivers, and the kernel itself by gaining a solid understanding of powerful open source tools and advanced kernel debugging techniques Key Features Fully understand how to use a variety of kernel and module debugging tools and techniques using examples Learn to expertly interpret a kernel Oops and identify underlying defect(s) Use easy-to-look up tables and clear explanations of kernel-level defects to make this complex topic easy Book DescriptionThe Linux kernel is at the very core of arguably the world’s best production-quality OS. Debugging it, though, can be a complex endeavor. Linux Kernel Debugging is a comprehensive guide to learning all about advanced kernel debugging. This book covers many areas in-depth, such as instrumentation-based debugging techniques (printk and the dynamic debug framework), and shows you how to use Kprobes. Memory-related bugs tend to be a nightmare – two chapters are packed with tools and techniques devoted to debugging them. When the kernel gifts you an Oops, how exactly do you interpret it to be able to debug the underlying issue? We’ve got you covered. Concurrency tends to be an inherently complex topic, so a chapter on lock debugging will help you to learn precisely what data races are, including using KCSAN to detect them. Some thorny issues, both debug- and performance-wise, require detailed kernel-level tracing; you’ll learn to wield the impressive power of Ftrace and its frontends. You’ll also discover how to handle kernel lockups, hangs, and the dreaded kernel panic, as well as leverage the venerable GDB tool within the kernel (KGDB), along with much more. By the end of this book, you will have at your disposal a wide range of powerful kernel debugging tools and techniques, along with a keen sense of when to use which.What you will learn Explore instrumentation-based printk along with the powerful dynamic debug framework Use static and dynamic Kprobes to trap into kernel/module functions Catch kernel memory defects with KASAN, UBSAN, SLUB debug, and kmemleak Interpret an Oops in depth and precisely identify it s source location Understand data races and use KCSAN to catch evasive concurrency defects Leverage Ftrace and trace-cmd to trace the kernel flow in great detail Write a custom kernel panic handler and detect kernel lockups and hangs Use KGDB to single-step and debug kernel/module source code Who this book is for This book is for Linux kernel developers, module/driver authors, and testers interested in debugging and enhancing their Linux systems at the level of the kernel. System administrators who want to understand and debug the internal infrastructure of their Linux kernels will also find this book useful. A good grasp on C programming and the Linux command line is necessary. Some experience with kernel (module) development will help you follow along.
Linux Kernel Programming
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Author : Kaiwan N Billimoria
language : en
Publisher: Packt Publishing Ltd
Release Date : 2021-03-19
Linux Kernel Programming written by Kaiwan N Billimoria and has been published by Packt Publishing Ltd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-03-19 with Computers categories.
Learn how to write high-quality kernel module code, solve common Linux kernel programming issues, and understand the fundamentals of Linux kernel internals Key Features Discover how to write kernel code using the Loadable Kernel Module framework Explore industry-grade techniques to perform efficient memory allocation and data synchronization within the kernel Understand the essentials of key internals topics such as kernel architecture, memory management, CPU scheduling, and kernel synchronization Book DescriptionLinux Kernel Programming is a comprehensive introduction for those new to Linux kernel and module development. This easy-to-follow guide will have you up and running with writing kernel code in next-to-no time. This book uses the latest 5.4 Long-Term Support (LTS) Linux kernel, which will be maintained from November 2019 through to December 2025. By working with the 5.4 LTS kernel throughout the book, you can be confident that your knowledge will continue to be valid for years to come. You’ll start the journey by learning how to build the kernel from the source. Next, you’ll write your first kernel module using the powerful Loadable Kernel Module (LKM) framework. The following chapters will cover key kernel internals topics including Linux kernel architecture, memory management, and CPU scheduling. During the course of this book, you’ll delve into the fairly complex topic of concurrency within the kernel, understand the issues it can cause, and learn how they can be addressed with various locking technologies (mutexes, spinlocks, atomic, and refcount operators). You’ll also benefit from more advanced material on cache effects, a primer on lock-free techniques within the kernel, deadlock avoidance (with lockdep), and kernel lock debugging techniques. By the end of this kernel book, you’ll have a detailed understanding of the fundamentals of writing Linux kernel module code for real-world projects and products.What you will learn Write high-quality modular kernel code (LKM framework) for 5.x kernels Configure and build a kernel from source Explore the Linux kernel architecture Get to grips with key internals regarding memory management within the kernel Understand and work with various dynamic kernel memory alloc/dealloc APIs Discover key internals aspects regarding CPU scheduling within the kernel Gain an understanding of kernel concurrency issues Find out how to work with key kernel synchronization primitives Who this book is for This book is for Linux programmers beginning to find their way with Linux kernel development. If you’re a Linux kernel and driver developer looking to overcome frequent and common kernel development issues, or understand kernel intervals, you’ll find plenty of useful information. You’ll need a solid foundation of Linux CLI and C programming before you can jump in.
Linux Kernel Programming
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Author : Kaiwan N. Billimoria
language : en
Publisher: Packt Publishing Ltd
Release Date : 2024-02-29
Linux Kernel Programming written by Kaiwan N. Billimoria and has been published by Packt Publishing Ltd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-02-29 with Computers categories.
Gain a solid practical understanding and sufficient theoretical insight into Linux kernel internals while learning to write high-quality kernel module code and understanding the complexities of kernel synchronization Purchase of the print or Kindle book includes a free eBook in PDF format. Key Features Discover how to write Linux kernel and module code for real-world products on the 6.1 LTS kernel Implement industry-grade techniques in real-world scenarios for fast, efficient memory allocation and data synchronization Understand and exploit kernel architecture, CPU scheduling, and kernel synchronization techniques Book DescriptionThe 2nd Edition of Linux Kernel Programming is an updated, comprehensive guide for those new to Linux kernel development. Built around the latest 6.1 Long-Term Support (LTS) Linux kernel, which is maintained until December 2026, this edition explores its key features and enhancements. Additionally, with the Civil Infrastructure Project extending support for the 6.1 Super LTS (SLTS) kernel until August 2033, this book will remain relevant for years to come. You'll begin this exciting journey by learning how to build the kernel from source. Step by step, you will then learn how to write your first kernel module by leveraging the kernel's powerful Loadable Kernel Module (LKM) framework. With this foundation, you will delve into key kernel internals topics including Linux kernel architecture, memory management, and CPU (task) scheduling. You'll finish with understanding the deep issues of concurrency, and gain insight into how they can be addressed with various synchronization/locking technologies (for example, mutexes, spinlocks, atomic/refcount operators, rw-spinlocks and even lock-free technologies such as per-CPU and RCU). By the end of this book, you'll build a strong understanding of the fundamentals to writing the Linux kernel and kernel module code that can straight away be used in real-world projects and products.What you will learn Configure and build the 6.1 LTS kernel from source Write high-quality modular kernel code (LKM framework) for 6.x kernels Explore modern Linux kernel architecture Get to grips with key internals details regarding memory management within the kernel Understand and work with various dynamic kernel memory alloc/dealloc APIs Discover key internals aspects regarding CPU scheduling within the kernel, including cgroups v2 Gain a deeper understanding of kernel concurrency issues Learn how to work with key kernel synchronization primitives Who this book is for This book is for beginner Linux programmers and developers looking to get started with the Linux kernel, providing a knowledge base to understand required kernel internal topics and overcome frequent and common development issues. A basic understanding of Linux CLI and C programming is assumed.
Linux Kernel Development
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Author : Calissa Corinne
language : en
Publisher: Independently Published
Release Date : 2025-11-23
Linux Kernel Development written by Calissa Corinne and has been published by Independently Published this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-11-23 with Computers categories.
Master the Linux Kernel from the Inside Out - Through Real Code, Real Tools, and Real Engineering Practice Modern computing runs on the Linux kernel. Whether you're building embedded systems, writing device drivers, optimizing performance, contributing upstream, or preparing for a career in systems programming, understanding the kernel is one of the most valuable and respected skills in software engineering. This book is your complete, practical, and deeply detailed guide to learning exactly how the Linux kernel works - and how to engineer with it effectively. Linux Kernel Development takes you far beyond theory. Every chapter is built around real-world workflows, hands-on exercises, annotated code walkthroughs, debugging sessions, and official kernel engineering practices. You learn how the kernel schedules tasks, manages memory, handles interrupts, enforces security, drives hardware, orchestrates I/O, and exposes interfaces to user space. More importantly, you learn how to work with the kernel as an engineer: inspecting it, modifying it, optimizing it, breaking it, and fixing it. You will build modules, trace system calls, write device drivers, add new system calls, troubleshoot crashes, optimize performance with eBPF, tune scheduling policies, isolate workloads, and design and debug your own kernel feature from scratch. By the end, you won't just understand the Linux kernel - you will be capable of engineering within it confidently. What You Will Learn How modern Linux kernels are structured, initialized, and extended Low-level memory management, virtual memory, page tables, allocators, NUMA, and memory debugging Scheduling internals, task lifecycle, preemption, real-time policies, and latency tracing Concurrency tools such as spinlocks, RCU, atomics, and kernel synchronization patterns Writing, loading, and debugging kernel modules safely Developing character, block, and network drivers Filesystems and the I/O stack: VFS, inodes, buffers, journals, and modern filesystems like XFS, Btrfs, and bcachefs Networking internals: sockets, routing, packet processing, Netfilter, and in-kernel networking hooks Kernel security: LSMs, SELinux, AppArmor, stack protection, and exploit mitigations eBPF and XDP for high-performance observability and in-kernel programmability Kernel profiling, crash analysis, ftrace, perf, BPF tools, and performance optimization CI/CD automation for kernel builds, DKMS workflows, and upstream patch submission Future directions of Linux kernel engineering: Rust adoption, AI-assisted tuning, and next-generation observability Who This Book Is For This book is written for: Systems programmers Kernel and driver developers Linux infrastructure engineers Cybersecurity practitioners Performance engineers Students and professionals preparing for a low-level software engineering career Anyone who wants to understand Linux at its deepest, most essential layers Whether you're an experienced developer or a motivated learner ready to explore the true heart of the operating system, this book provides the clarity, structure, and hands-on practice you need to master the Linux kernel. Why This Book Stands Out Every chapter is grounded in real kernel code, official kernel documentation practices, and hands-on engineering work. You will compile, trace, benchmark, debug, and modify real kernel subsystems - not just read about them. Concepts are explained cleanly and gradually, with a focus on practicality, engineering clarity, and long-term mastery. Your Path to Becoming a Kernel Engineer Begins Here Start your journey into true systems engineering today.
Linux Kernel Programming Part 2 Char Device Drivers And Kernel Synchronization
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Author : Kaiwan N Billimoria
language : en
Publisher: Packt Publishing Ltd
Release Date : 2021-03-19
Linux Kernel Programming Part 2 Char Device Drivers And Kernel Synchronization written by Kaiwan N Billimoria and has been published by Packt Publishing Ltd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-03-19 with Computers categories.
Discover how to write high-quality character driver code, interface with userspace, work with chip memory, and gain an in-depth understanding of working with hardware interrupts and kernel synchronization Key FeaturesDelve into hardware interrupt handling, threaded IRQs, tasklets, softirqs, and understand which to use whenExplore powerful techniques to perform user-kernel interfacing, peripheral I/O and use kernel mechanismsWork with key kernel synchronization primitives to solve kernel concurrency issuesBook Description Linux Kernel Programming Part 2 - Char Device Drivers and Kernel Synchronization is an ideal companion guide to the Linux Kernel Programming book. This book provides a comprehensive introduction for those new to Linux device driver development and will have you up and running with writing misc class character device driver code (on the 5.4 LTS Linux kernel) in next to no time. You'll begin by learning how to write a simple and complete misc class character driver before interfacing your driver with user-mode processes via procfs, sysfs, debugfs, netlink sockets, and ioctl. You'll then find out how to work with hardware I/O memory. The book covers working with hardware interrupts in depth and helps you understand interrupt request (IRQ) allocation, threaded IRQ handlers, tasklets, and softirqs. You'll also explore the practical usage of useful kernel mechanisms, setting up delays, timers, kernel threads, and workqueues. Finally, you'll discover how to deal with the complexity of kernel synchronization with locking technologies (mutexes, spinlocks, and atomic/refcount operators), including more advanced topics such as cache effects, a primer on lock-free techniques, deadlock avoidance (with lockdep), and kernel lock debugging techniques. By the end of this Linux kernel book, you'll have learned the fundamentals of writing Linux character device driver code for real-world projects and products. What you will learnGet to grips with the basics of the modern Linux Device Model (LDM)Write a simple yet complete misc class character device driverPerform user-kernel interfacing using popular methodsUnderstand and handle hardware interrupts confidentlyPerform I/O on peripheral hardware chip memoryExplore kernel APIs to work with delays, timers, kthreads, and workqueuesUnderstand kernel concurrency issuesWork with key kernel synchronization primitives and discover how to detect and avoid deadlockWho this book is for An understanding of the topics covered in the Linux Kernel Programming book is highly recommended to make the most of this book. This book is for Linux programmers beginning to find their way with device driver development. Linux device driver developers looking to overcome frequent and common kernel/driver development issues, as well as perform common driver tasks such as user-kernel interfaces, performing peripheral I/O, handling hardware interrupts, and dealing with concurrency will benefit from this book. A basic understanding of Linux kernel internals (and common APIs), kernel module development, and C programming is required.
Linux Internals Simplified
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Author : Haris Kundan Prasad
language : en
Publisher:
Release Date : 2020-05-02
Linux Internals Simplified written by Haris Kundan Prasad and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-02 with categories.
"Linux internals simplified" is a book which discusses the basics of Linux kernel internals in a code driven approach. It picks the major subsystems of the kernel which are important, and tries to simplify its internal working and data structures. As such, this book is aimed at engineers who wish to start learning about the Linux kernel.This book starts with the basic steps to acquire the Linux kernel code. It then shows ways of customizing the build options and lastly kernel compilation. Next it looks at a number of hacking tools which will help one to debug and trace in a live Linux system. Practical examples of ftrace, kprobes and crash tool are discussed. These tools are useful in trying to understand the way the Linux system works. Chapter 3 discusses the details of a running process in a Linux system. It touches topics such as address spaces of a running process, user and kernel spaces, system calls, Linux process descriptor, Linux process creation, and so on. This chapter builds a foundation of a program in execution in the Linux system.Once the reader knows about the running processes, chapter 4 discusses about the Linux process scheduling subsystem. This chapter discusses different data structures and code paths of the Linux scheduler, which controls the scheduling of processes in the Linux system. Chapter 5 discusses Interrupts, which play a significant role in the Linux operating system. The chapter discusses edge and level triggered interrupts, interrupt handlers and their registration, shared interrupt handlers, and so on. It also shows the ftrace of the do_irq function.Chapter 6 discusses the signal subsystem. It starts with a little introduction of the design of the signal subsystem. It then traces the code execution of delivering and handling of signals in the Linux kernel. The chapter then discusses signal overloading and how it is performed, while exploring the kernel code which handles this. Chapter 7 covers Linux synchronization primitives, and why they are needed. It shows the detailed implementation of primitives like atomic variables, spinlocks, semaphores and mutexes in the Linux kernel.Chapter 8 discusses various ways of Linux kernel memory allocation. It discusses Buddy allocator, Resource map allocator and Slab allocator. It discusses various APIs used for these allocators (alloc_page/s, kmem_cache_alloc, kmalloc etc.). It also discusses how user space malloc results in memory allocation in the Linux kernel.Chapter 9 discusses the Linux dynamic modules, Linux character driver framework, internal functions which are used while creating a character driver, UDEV events and IOCTL interface. It also discusses Linux device model. It discusses example of bus, device and device_driver components. It illustrates device model when used in PCI BUS. Chapter 10 covers the subsystem related to block IOs. It starts with an introduction of filesystem and its purpose. It then traces the path an IO takes, right from the "write()" system call, to the moment it gets written to the disk. The chapter covers basic data structures and design elements while going down the IO stack.
Mastering The Linux Kernel
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Author : ROWAN. FITCH
language : en
Publisher: Independently Published
Release Date : 2025-11-30
Mastering The Linux Kernel written by ROWAN. FITCH and has been published by Independently Published this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-11-30 with Computers categories.
Stop writing user-space code. It is time to dive into the deep end. Mastering the Linux Kernel is not a theoretical textbook. It is a hands-on manual for the engineers who build the world's infrastructure. From the moment you boot your first custom kernel to the deployment of a stealth rootkit detector, this book demands that you get your hands dirty. Written for C programmers who understand the basics of operating systems, this guide bridges the gap between abstract concepts and the cold, hard reality of hardware interaction. You will not just read about the Completely Fair Scheduler; you will analyze its Red-Black tree implementation. You will not just learn about memory management; you will build a high-performance circular buffer driver using direct memory mapping. Topics covered include: Foundation & Architecture: Building a professional kernel development environment with QEMU and BusyBox, and mastering Loadable Kernel Modules (LKM). Core Internals: Deep dives into the Slab allocator, the Buddy system, interrupt handling (Top/Bottom halves), and the CFS scheduler. Concurrency & Safety: Writing race-free code using Spinlocks, Mutexes, and the Read-Copy-Update (RCU) mechanism. Device Drivers: Creating robust character drivers, handling blocking I/O, managing I/O ports, and mastering DMA transfers. Networking: Dissecting the sk_buff structure, implementing NAPI for high-load throughput, and writing Netfilter hooks. Modern Observability: Utilizing eBPF and XDP for high-speed packet filtering and dynamic system tracing without recompilation. Security: A full practical guide to building a kernel rootkit detector to identify syscall hooks and hidden processes. This book respects your intelligence and your time. It focuses on the code that powers modern Linux systems, covering v6.x kernels and the latest tooling. Whether you are debugging a deadlock in a production driver or architecting a new embedded system, this is the reference you will keep open on your desk. Master the machine. Control the kernel.
Hands On System Programming With Linux
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Author : Kaiwan N Billimoria
language : en
Publisher: Packt Publishing Ltd
Release Date : 2018-10-31
Hands On System Programming With Linux written by Kaiwan N Billimoria and has been published by Packt Publishing Ltd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-31 with Computers categories.
Get up and running with system programming concepts in Linux Key FeaturesAcquire insight on Linux system architecture and its programming interfacesGet to grips with core concepts such as process management, signalling and pthreadsPacked with industry best practices and dozens of code examplesBook Description The Linux OS and its embedded and server applications are critical components of today’s software infrastructure in a decentralized, networked universe. The industry's demand for proficient Linux developers is only rising with time. Hands-On System Programming with Linux gives you a solid theoretical base and practical industry-relevant descriptions, and covers the Linux system programming domain. It delves into the art and science of Linux application programming— system architecture, process memory and management, signaling, timers, pthreads, and file IO. This book goes beyond the use API X to do Y approach; it explains the concepts and theories required to understand programming interfaces and design decisions, the tradeoffs made by experienced developers when using them, and the rationale behind them. Troubleshooting tips and techniques are included in the concluding chapter. By the end of this book, you will have gained essential conceptual design knowledge and hands-on experience working with Linux system programming interfaces. What you will learnExplore the theoretical underpinnings of Linux system architectureUnderstand why modern OSes use virtual memory and dynamic memory APIsGet to grips with dynamic memory issues and effectively debug themLearn key concepts and powerful system APIs related to process managementEffectively perform file IO and use signaling and timersDeeply understand multithreading concepts, pthreads APIs, synchronization and schedulingWho this book is for Hands-On System Programming with Linux is for Linux system engineers, programmers, or anyone who wants to go beyond using an API set to understanding the theoretical underpinnings and concepts behind powerful Linux system programming APIs. To get the most out of this book, you should be familiar with Linux at the user-level logging in, using shell via the command line interface, the ability to use tools such as find, grep, and sort. Working knowledge of the C programming language is required. No prior experience with Linux systems programming is assumed.
Linux Kernel Programming For System Engineers
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Author : Liam Byrne
language : en
Publisher: Independently Published
Release Date : 2025-10-12
Linux Kernel Programming For System Engineers written by Liam Byrne and has been published by Independently Published this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-10-12 with Computers categories.
Master the art of Linux kernel programming with this comprehensive, hands-on guide designed for system engineers and developers ready to work at the operating system's core. Linux Kernel Programming for System Engineers takes readers on a practical journey from setting up a secure development environment to contributing code to the Linux kernel community. This book demystifies kernel internals through clear explanations and real-world code examples. Starting with foundational concepts like kernel architecture and the separation between kernel space and user space, readers progress through essential topics including process management, memory management, device drivers, and system calls. Each chapter builds systematically on the previous one, creating a complete understanding of how Linux operates at its deepest level. What sets this book apart is its emphasis on practical, hands-on learning. Every concept is reinforced with working code examples that can be compiled, loaded, and tested in a safe virtual machine environment. Readers will write their first kernel module, implement device drivers, work with synchronization primitives, and master debugging techniques using tools like GDB and QEMU. The book covers critical topics often overlooked in other resources, including kernel data structures, interrupt handling, the Virtual File System, and performance optimization. Designed for system engineers, embedded developers, and programmers with C programming experience who want to advance their careers, this guide provides the knowledge needed to write production-quality kernel code. Whether the goal is to develop custom device drivers, optimize system performance for cloud infrastructure, or contribute to open-source projects, this book delivers the skills and confidence to succeed. The book follows the modern Linux kernel architecture and includes detailed coverage of loadable kernel modules, memory allocation strategies, concurrency and synchronization, networking internals, and security mechanisms. Extensive appendices provide quick-reference guides to essential kernel APIs and configuration options. Every chapter concludes with practical exercises that reinforce learning and build real-world skills. By the end of this comprehensive guide, readers will understand the Linux kernel from both theoretical and applied perspectives. They will be equipped to navigate the kernel source tree with confidence, write stable and efficient kernel code, debug complex issues, and participate in one of the most important open-source projects in computing history. This is the definitive resource for anyone serious about Linux kernel development in 2025 and beyond.