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You're reading from Linux Kernel Programming

Product type Book

Published in Mar 2021

Publisher Packt

ISBN-13 9781789953435

Pages 754 pages

Edition 1st Edition

Languages

Concepts

System Administration

Author (1):

Kaiwan N. Billimoria

Table of Contents (19) Chapters

Preface

1. Section 1: The Basics

2. Kernel Workspace Setup

3. Building the 5.x Linux Kernel from Source - Part 1

4. Building the 5.x Linux Kernel from Source - Part 2

5. Writing Your First Kernel Module - LKMs Part 1

6. Writing Your First Kernel Module - LKMs Part 2

7. Section 2: Understanding and Working with the Kernel

8. Kernel Internals Essentials - Processes and Threads

9. Memory Management Internals - Essentials

10. Kernel Memory Allocation for Module Authors - Part 1

11. Kernel Memory Allocation for Module Authors - Part 2

12. The CPU Scheduler - Part 1

13. The CPU Scheduler - Part 2

14. Section 3: Delving Deeper

15. Kernel Synchronization - Part 1

16. Kernel Synchronization - Part 2

17. About Packt

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18. Other Books You May Enjoy

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Lock debugging within the kernel

The kernel has several means to help debug difficult situations with regard to kernel-level locking issues, deadlock being a primary one.

Just in case you haven't already, do ensure you've first read the basics on synchronization, locking, and deadlock guidelines from the previous chapter (Chapter 12, Kernel Synchronization – Part 1, especially the Exclusive execution and atomicity and Concurrency concerns within the Linux kernel sections).

With any debug scenario, there are different points at which debugging occurs, and thus perhaps differing tools and techniques that should/could be used. Very broadly speaking, a bug might be noticed at, and thus debugged at, a few different points in time (within the Software Development Life Cycle (SDLC), really):

During development
After development but before release (testing, Quality Assurance (QA), and so on)
After internal release
After release, in the field...

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Authors (1)

Kaiwan N. Billimoria

Kaiwan N. Billimoria taught himself BASIC programming on his dad's IBM PC back in 1983. He was programming in C and Assembly on DOS until he discovered the joys of Unix, and by around 1997, Linux! Kaiwan has worked on many aspects of the Linux system programming stack, including Bash scripting, system programming in C, kernel internals, device drivers, and embedded Linux work. He has actively worked on several commercial/FOSS projects. His contributions include drivers to the mainline Linux OS and many smaller projects hosted on GitHub. His Linux passion feeds well into his passion for teaching these topics to engineers, which he has done for well over two decades now. He's also the author of Hands-On System Programming with Linux, Linux Kernel Programming (and its Part 2 book) and Linux Kernel Debugging. It doesn't hurt that he is a recreational ultrarunner too.

See other products by Kaiwan N. Billimoria