Linux Kernel Debugging
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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 Debugging And Performance Tuning Tips And Techniques
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Author :
language : en
Publisher: Pearson Education India
Release Date :
Linux Debugging And Performance Tuning Tips And Techniques written by and has been published by Pearson Education India this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Boost The Reliability Of The Linux Kernel
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Author : Lisong Guo
language : en
Publisher:
Release Date : 2014
Boost The Reliability Of The Linux Kernel written by Lisong Guo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
When a failure occurs in the Linux kernel, the kernel emits an error report called “kernel oops”, summarizing the execution context of the failure. Kernel oopses describe real Linux errors, and thus can help prioritize debugging efforts and motivate the design of tools to improve the reliability of Linux code. Nevertheless, the information is only meaningful if it is representative and can be interpreted correctly. In this thesis, we study a collection of kernel oopses over a period of 8 months from a repository that is maintained by Red Hat. We consider the overall features of the data, the degree to which the data reflects other information about Linux, and the interpretation of features that may be relevant to reliability. We find that the data correlates well with other information about Linux, but that it suffers from duplicate and missing information. We furthermore identify some potential pitfalls in studying features such as the sources of common faults and common failing applications. Furthermore, a kernel oops provides valuable first-hand information for a Linux kernel maintainer to conduct postmortem debugging, since it logs the status of the Linux kernel at the time of a crash. However, debugging based on only the information in a kernel oops is difficult. To help developers with debugging, we devised a solution to derive the offending line from a kernel oops, i.e., the line of source code that incurs the crash. For this, we propose a novel algorithm based on approximate sequence matching, as used in bioinformatics, to automatically pinpoint the offending line based on information about nearby machine-code instructions, as found in a kernel oops. Our algorithm achieves 92% accuracy compared to 26% for the traditional approach of using only the oops instruction pointer. We integrated the solution into a tool named OOPSA, which would relieve some burden for the developers with the kernel oops debugging.
Debugging Linux Systems Digital Short Cut
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Author : Sreekrishnan Venkateswaran
language : en
Publisher: Pearson Education
Release Date : 2009-11-03
Debugging Linux Systems Digital Short Cut written by Sreekrishnan Venkateswaran and has been published by Pearson Education this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-11-03 with Computers categories.
Debugging Linux Systems discusses the main tools available today to debug 2.6 Linux Kernels. We start by exploring the seemingly esoteric operations of the Kernel Debugger (KDB), Kernel GNU DeBugger (KGDB), the plain GNU DeBugger (GDB), and JTAG debuggers. We then investigate Kernel Probes, a feature that lets you intrude into a kernel function and extract debug information or apply a medicated patch. Analyzing a crash dump can yield clues for postmortem analysis of kernel crashes or hangs, so we take a look at Kdump, a serviceability tool that collects a system dump after spawning a new kernel. Profiling points you to code regions that burn more CPU cycles, so we learn to use the OProfile kernel profiler and the gprof application profiler to sense the presence of code bottlenecks. Because tracing provides insight into behavioral problems that manifest during interactions between different code modules, we delve into the Linux Trace Toolkit, a system designed for high-volume trace capture. The section “Debugging Embedded Linux” takes a tour of the I/O interfaces commonly found on embedded hardware, such as flash memory, serial port, PCMCIA, Secure Digital media, USB, RTC, audio, video, touch screen, and Bluetooth, and provides pointers to debug the associated device drivers. We also pick up some board-level debugging skills with the help of a case study. The section “Debugging Network Throughput” takes you through some device driver design issues and protocol implementation characteristics that can affect the horsepower of your network interface card. We end the shortcut by examining several options available in the kernel configuration menu that can emit valuable debug information.
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.
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 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 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 Kernel Programming
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Author : Michael Beck
language : en
Publisher: Addison-Wesley Professional
Release Date : 2002
Linux Kernel Programming written by Michael Beck and has been published by Addison-Wesley Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Computers categories.
CD-ROM contains: Linux kernel version 2.4.4, plus sources from other programs and documents from the Linux Documentation Project.