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Linux Kernel Programming

You're reading from   Linux Kernel Programming A comprehensive guide to kernel internals, writing kernel modules, and kernel synchronization

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Product type Paperback
Published in Mar 2021
Publisher Packt
ISBN-13 9781789953435
Length 754 pages
Edition 1st Edition
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Author (1):
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Kaiwan N. Billimoria Kaiwan N. Billimoria
Author Profile Icon Kaiwan N. Billimoria
Kaiwan N. Billimoria
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Table of Contents (19) Chapters Close

Preface 1. Section 1: The Basics
2. Kernel Workspace Setup FREE CHAPTER 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 18. Other Books You May Enjoy

The 10,000-foot view of the process VAS

Before we conclude this section, it's important to take a step back and see the complete VASes of each process and how it looks for the system as a whole; in other words, to zoom out and see the "10,000-foot view" of the complete system address space. This is what we attempt to do with the following rather large and detailed diagram (Figure 6.7), an extension or superset of our earlier Figure 6.3.

For those of you reading a hard copy of the book, I'd definitely recommend you view the book's figures in full color from this PDF document at https://static.packt-cdn.com/downloads/9781789953435_ColorImages.pdf.

Besides what you have learned about and seen just now – the process user space segments, the (user and kernel) threads, and the kernel-mode stacks – don't forget that there is a lot of other metadata within the kernel: the task structures, the kernel threads, the memory descriptor metadata...

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