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Linux Kernel Structure and Principles: Debugging - Advanced Practice [Author's Direct Lecture Part 1-3]

The author of "디버깅을 통해 배우는 리눅스 커널의 구조와 원리" properly explains the most advanced kernel memory dump debugging skills for the latest Linux kernel (v6.1), most widely used in system software.

(5.0) 13 reviews

323 learners

Level Intermediate

Course period Unlimited

  • austinkim
trace32
trace32
Linux
Linux
linux-kernel
linux-kernel
Operating System
Operating System
debugging
debugging
trace32
trace32
Linux
Linux
linux-kernel
linux-kernel
Operating System
Operating System
debugging
debugging

What you will gain after the course

  • Debugging Linux kernel memory dump with TRACE32 and Crash Utility programs

  • Various case studies you might encounter during real-world project development

  • boot-time ftrace tracer

  • Run the Crash Utility program to debug the Linux kernel's key data structures

  • Run TRACE32 to debug Linux kernel's key data structures.

1. 30% discount coupon issued for breaking 200 participants

To commemorate reaching 200 students (Linux Kernel Structure and Principles), we are issuing a 30% discount coupon. Thank you. First come, first served for 200 people.

2. Roadmap Guide 🎯

This lecture is a roadmap'Linux kernel - basic course for system software developers'is included in the course.

IMAGE_TO_TRAINER_INTRO

For those who want to learn the main functions that systematically compose the Linux kernel, it would be good to utilize the roadmap (30% discount on all courses).

System semiconductors, automotive sector, etc.

System software developers must know the Linux kernel


What is the most widely used operating system across all IT devices? It's the Linux operating system. It is used in smartphones, digital TVs, aviation entertainment systems, and servers. System semiconductor companies utilize Linux (Linux device drivers) to control the hardware they design. Additionally, Linux is extensively used in various components that make up electric vehicles (Automotive), including infotainment, autonomous driving, and telematics.

The core of the Linux operating system is the Linux kernel. Along with the Armv8-A architecture, the Linux kernel can be considered the content that requires the most essential foundational knowledge currently needed in the system software industry.

Linux system software developers and Linux embedded system (BSP) programmers, pay attention!

✅ Junior developers in the Linux system software field, including system semiconductors and electric vehicle sectors (autonomous driving, infotainment)

✅ Job seekers who want to work in Linux system software development fields such as system semiconductors and electric vehicles

✅ Linux system software field (memory, file systems, operating systems) graduate school applicants

✅ Developers from other fields who want to transition their career to Linux system software

However, the Linux kernel is like a massive barrier for beginners in the field of system software. Beginners have likely experienced giving up on learning the Linux kernel multiple times. That difficult Linux kernel is becoming increasingly complex as it evolves through version upgrades.After 2024, the Linux kernel version will be upgraded to v6.6 or higherHowever, the barriers to entry are becoming even higher.

Linux system software developers positioned in various fields including system semiconductors and electric vehicles know that they need to understand the Linux kernel well to develop their capabilities. However, it's difficult to get a sense of how to learn the Linux kernel and, most importantly, what content they need to know well in practical work.

What development capabilities do Linux system software developers most want to cultivate?

What is the most practical skill that Linux system software developers want to learn? It's debugging skills. Since debugging is proportional to problem-solving ability, they want to develop their debugging capabilities. While there are many blogs and materials about the Linux kernel, they rarely cover how to systematically solve problems using the latest debugging techniques.

So in Chapter 3 of my book 'Learning Linux Kernel Structure and Principles Through Debugging', in the section 'Debugging and Code Learning', I cover content about debugging.

Differentiation Points of the Course

This course consists of content that has never been covered on YouTube or any other lecture platform before! It covers the latest Linux kernel debugging methods and various case studies. It also introduces methods for debugging kernel data structures through Linux kernel memory dumps. Students taking this course can download the educational program (TRACE32) and practice hands-on.

1. Comprehensive debugging methods closest to real-world development

The work skill that job seekers and junior developers want to know most is what debugging tools to use and how to debug with them. In this lecture, we introduce how to debug kernel data structures using 'kernel memory dump', which is the most advanced debugging method.

2. Introduction to debugging methods used by Linux kernel BSP developers at global system semiconductor companies

The system semiconductor industry has been emerging recently. How do Qualcomm Linux kernel BSP developers, who possess the best technology among global system semiconductor companies, debug Linux kernel drivers?

This lecture covers the following content. We will debug the kernel's data structures using the TRACE32 simulator with Linux kernel memory dumps, and analyze the kernel's key operations by loading memory dumps with crash-utility.

3. Introduction to the Latest ftrace Debugging Method 'boot-time tracer'

As the Linux kernel version upgrades, debugging methods are also evolving. In ftrace, a 'boot-time tracer' feature has been proposed that can trace kernel operations during the boot process with just simple configuration changes. This lecture introduces various ways to utilize the 'boot-time tracer'.

4. TRACE32 simulator program (educational) and Linux kernel dump provided

TRACE32 debugger and programs are widely used throughout Linux system software development. TRACE32 programs require a license to run. If you take this courseEducational TRACE32 simulator program as 'Inflearn lecture materials'You can download and directly use the TRACE32 simulator program to debug memory dumps. You can also download 3 kernel memory dumps for hands-on practice.

You'll learn this kind of content

This explains why dump analysis is necessary in real-world projects. It introduces Crash-Utility and TRACE32, which are widely used in real-world projects.

This explains in detail how to debug using Crash-Utility and TRACE32 in real-world projects.

This explains the content of a book about TRACE32 while directly running TRACE32 for debugging. While taking the class, you can download the educational TRACE32 program (educational version: for simulator use)You can practice by following along together.

This explains how to install and run the TRACE32 (educational, simulator) program uploaded to 'Course Materials'. It also provides detailed instructions on how to download the kernel memory dump uploaded to 'Course Materials' and load the kernel memory dump using the TRACE32 program.


This introduces 3 methods for configuring ftrace and provides a detailed explanation of why boot-time ftrace tracer is necessary.

Explains how to configure the boot-time ftrace tracer and provides detailed analysis of related kernel source code.

This introduces how to configure boot command line and provides detailed analysis of related ftrace logs. It covers methods for extracting kernel logs as ftrace logs and techniques for analyzing related messages.

Provides detailed analysis of ftrace messages and explains the related operational principles. Also provides detailed analysis of kernel source code related to initcall.

We will run the Crash Utility program to debug the major data structures of the Linux kernel. We will also analyze the related kernel driver source code together to explain the operating principles in detail.


Explains the detailed operating principles of related functions while debugging Linux kernel dumps with the Crash Utility program.


We introduce various case studies that you can encounter in the process of developing real-world projects. We analyze related kernel logs and the operating principles of the kernel in detail. We also explain how to solve problems through debugging.


This explains case studies of stack corruption and memory leak issues that can be encountered during the development of real-world projects.

This explains the data structures and architecture of the Linux kernel's memory system through Crash Utility debugging.

This explains the main TRACE32 commands (memory address casting) introduced in the book. It provides detailed explanations on how to use related commands directly with the TRACE32 program.

This explains the symbol information of the system call table and uses the TRACE32 command (d.v %y.ll sys_call_table) to check system call handler function information. In the following lectures, we will explain the key commands of TRACE32 along with the core data structures of the Linux kernel.

This provides a detailed explanation of practical commands used in the process of conducting real-world projects (the %l option: outputting register information).

Educational TRACE32 program and 3 Linux kernel memory dumps provided

In this lecture, we will cover the most advanced debugging method in the Linux system software industry -Global top-tier system semiconductor company, Qualcomm Linux kernel developers debugging- Introduces how to debug Linux kernel memory dumps. Provides advanced debugging methods for debugging Linux kernel memory using debugging programs such as TRACE32 and Crash utility.

✅ You can download the educational TRACE32 program (simulator version) from the course curriculum.Students can load the kernel memory dump provided in this lecture using the TRACE32 program and follow along to debug together.

✅ You can directly download the Crash Utility, which operates as an open source project, to load kernel memory dumps for debugging. By utilizing the various features supported by Crash Utility, you can analyze kernel data structures and call stacks.Direct debuggingYou can do it.

Based on book writing/lecture experience
Deeper and more detailed than anyone else!

In the domestic system software field, I am the unprecedented author of the 'Linux Kernel' book and 'Arm Architecture (Armv8-A, Armv7-A)' book. I am also a current industry developer who knows the latest system software trends (electric vehicles, system semiconductors - system software) best, and an educator who is most actively engaged in knowledge dissemination activities in the system software field.

  • 'Learning Linux Kernel Structure and Principles Through Debugging' (2021 Korea Academy Outstanding Book Award) Author

  • Author of 'Structure and Principles of Arm Architecture for System Software Development' (2024 Korea Academy Outstanding Book Award)

  • 'Programmers Dev Course: Linux System and Kernel Expert' Main Instructor

  • June 2022, Korea Computer Congress (KCC2022) - Tutorial Presentation [Conquering the Linux Kernel Using ftrace]

  • LG Electronics 'Linux Kernel' and 'Armv8 Architecture' In-house Instructor (including domestic and overseas developers) - (2020~2024)


I can confidently say that I am an educator who can explain the major functions that make up the Linux kernel better than anyone else in Korea.

Pre-enrollment Reference Information

Precautions when using the TRACE32 program

  • The TRACE32 educational program can only be practiced in a Windows environment.

  • The TRACE32 educational program can only be used for 'educational purposes' and cannot be modified or distributed for commercial use.

  • If you have any questions while using the TRACE32 educational program for this courseDefinitely for educatorsPlease ask a question.

Practice Environment and Provided Course Materials

  • Operating System and Version (OS): Raspberry Pi (Raspbian), Linux Kernel v6.1

  • TRACE32 Educational Program and Installation Guide Documentation (Lecture)

  • 3 Linux kernel memory dumps (vmcore)


Prerequisites and Important Notes

  • It would be good if you have a rough understanding of how Linux works.

  • It would be good to listen to the 'Linux Kernel Structure and Principles: Debugging - Basic [Author's Direct Lecture Part 1-2]' lecture first if possible.

  • Having knowledge of operating systems or computer architecture will make it easier to follow the class.

  • You don't need deep prerequisite knowledge about the Linux kernel.

Recommended for
these people

Who is this course right for?

  • Junior developer wanting to build skills in system software, including system semiconductors and EV (autonomous driving, infotainment).

  • Aspiring job seeker for system software development in system semiconductor and electric vehicle fields.

  • Undergraduate student aiming for graduate school in system software (memory, file system, OS)

  • Cross-domain developer seeking system software career change

Need to know before starting?

  • Operating System

  • C language

  • Computer Architecture

Hello
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Courses

Global Author & Linux System Software Developer (Arm, RISC-V Architecture)

A global author who has written unprecedented books on 'Arm Architecture (Armv8-A, Armv7-A)' and the 'Linux Kernel' in the domestic system software field (both books were selected as Excellent Academic Books by the National Academy of Sciences of the Republic of Korea), and is the first in Korea to author the book (in English) "Reverse Engineering Armv8-A Systems" through an international publisher (Packt). Above all, he is an active developer who is most well-versed in the latest system software trends (electric vehicles, system semiconductors-system software). He is also an educator who is most actively engaged in spreading knowledge within the system software field.

  • Author of the book (English) 'Reverse Engineering Armv8-A Systems: A practical guide to Kernel, Firmware, and TrustZone analysis', (Packt Publishing)

  • Author of 'Structure and Principles of Arm Architecture for System Software Development' (2024 National Academy of Sciences Outstanding Book Award)

  • Author of 'Structure and Principles of the Linux Kernel Learned Through Debugging' (2021, National Academy of Sciences Outstanding Scholarly Book Award)

  • Main Instructor for 'Programmers Dev Course: Linux System and Kernel Expert'

  • June 2022, Korea Computer Congress (KCC2022) - Tutorial Presentation [Conquering the Linux Kernel Using ftrace]

  • LG Electronics 'Linux Kernel' and 'Armv8 Architecture' internal instructor (including domestic and overseas developers) - (2020–Present)

I can confidently say that I am an educator who can explain the Linux kernel and Arm architecture (Armv8-A, Armv7-A) better than anyone else in Korea.

Lecture Inquiries: austindh.kim@gmail.com

Main Roadmap 🎯

'Arm for System Software Developers - basic course'

'Arm for System Software Developers - advanced course'

Linux kernel for system software developers - basic course

Curriculum

All

42 lectures ∙ (5hr 39min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

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13 reviews

5.0

13 reviews

  • aceoftop1975님의 프로필 이미지
    aceoftop1975

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    100% enrolled

    2024/07/30/Tue 20:25 I listened to the lecture well. I have now listened to all of Kim Dong-hyun's roadmap lectures. All lectures provide new information and knowledge, and I was impressed by the words to set aside about 15 days to solve OOM(out of memory). Thank you for sharing many stories from your own experiences and for explaining difficult Linux/Arm in an easy way. I am currently 50 years old (born in 1975). T.T When I was young, I bought a lot of Linux books and tried hard, but I didn't make any progress. After listening to Kim Dong-hyun's lectures, I learned a lot. I only had time on weekends, but I used my annual leave this week to listen to all the lectures. I listened to everything so quickly from Saturday the 27th until now, I think I should listen to it again.^^; Course period: Unlimited, so I think I will continue to listen to it if I want to listen to it again in a year. Now I plan to read the Linux/Arm book I bought as an ebook carefully. I don't have a writing Jeju, so I can't convey what I feel. Now I think I can make progress little by little about Linux. Thank you for the great lecture. If you make more lectures in the future, I will listen carefully. Have a nice day. Thank you.

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            Linux Kernel Structure and Principles: Interrupts [Author's Direct Lecture Part 1-5]

            austinkim

            The author of "Learning the Structure and Principles of the Linux Kernel through Debugging" properly explains the core interrupt concepts of the latest Linux kernel (v6.1), most used in system software.

            Basic

            Basic

            Operating System, Linux, linux-kernel

            Linux Kernel Structure and Principles: Interrupts [Author's Direct Lecture Part 1-5]Course Thumbnail

            Linux Kernel Structure and Principles: Interrupts [Author's Direct Lecture Part 1-5]

            austinkim

            Linux Kernel Structure and Principles: Interrupt Bottom Half [Author's Direct Lecture Part 1-6]Course Thumbnail

            Linux Kernel Structure and Principles: Interrupt Bottom Half [Author's Direct Lecture Part 1-6]

            austinkim

            The author of 'Linux Kernel Structure and Principles Learned Through Debugging' properly explains the core concept of the 'interrupt bottom half' in the latest Linux kernel (v6.1), most used in system software.

            Basic

            Basic

            Operating System, Linux, linux-kernel

            Linux Kernel Structure and Principles: Interrupt Bottom Half [Author's Direct Lecture Part 1-6]Course Thumbnail

            Linux Kernel Structure and Principles: Interrupt Bottom Half [Author's Direct Lecture Part 1-6]

            austinkim

            Linux Permissions Masterclass – "From Fundamentals to Practical Application, Security, and Service Operations"Course Thumbnail

            Linux Permissions Masterclass – "From Fundamentals to Practical Application, Security, and Service Operations"

            linuxmasternet

            This course puts an end to Linux server operational vulnerabilities caused by incorrect permissions. Master file and directory permission control based on real-world industry standards.

            Basic

            Basic

            Linux, Operating System, security

            Linux Permissions Masterclass – "From Fundamentals to Practical Application, Security, and Service Operations"Course Thumbnail

            Linux Permissions Masterclass – "From Fundamentals to Practical Application, Security, and Service Operations"

            linuxmasternet

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            Computer Science (5): Interfaces - Operating Systems, User Interfaces, Databases

            onemoresipofcoffee

            ✅ Out of the entire series (1) ~ (7), (5) operating system, user interface, database ✅ CS101 series lectures - From basic computer theory to the latest practical examples - Provides a wide range of basic knowledge

            Beginner

            Beginner

            Operating System, Linux, DBMS/RDBMS

            Computer Science (5): Interfaces - Operating Systems, User Interfaces, DatabasesCourse Thumbnail

            Computer Science (5): Interfaces - Operating Systems, User Interfaces, Databases

            onemoresipofcoffee

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            Linux Practical Guide by a System Engineer – Real-world Troubleshooting Using Generative AI

            bashbomb

            This is a 'Practical Linux Troubleshooting Course' where you analyze and solve problems together with generative AI, based on a Docker practice environment that reproduces 5 representative failures that occur in actual Linux operating environments. Even those who were overwhelmed about where to start examining problems can learn the problem-solving approach and thought process of field engineers through AI guidance.

            Intermediate

            Intermediate

            Linux, Docker, system-administration

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            Linux Practical Guide by a System Engineer – Real-world Troubleshooting Using Generative AI

            bashbomb

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            megayuchi

            We'll teach you essential Windows System programming skills for developing games and applications for Windows.

            Basic

            Basic

            windows-programming, C++, microsoft-visual-c++

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            Windows System Programming

            megayuchi

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            Introduction to Linux : crash course

            amrit

            Linux for Beginners: Mastering the Command Line. The ultimate course for Linux administration in corporate jobs. Unlock the power of the Linux operating system with this comprehensive beginner-friendly course. Whether new to IT or wanting to advance technical skills, this course will take one from zero to proficient in Linux fundamentals. Learn to navigate the command line, manage files and directories, handle permissions, and automate tasks with shell scripting. What You'll Learn: How to Navigate the Linux File System and Master the Command Line Managing users, groups, and file permissions for secure access Installing, updating, and removing software with package managers Basic system administration and troubleshooting skills With hands-on labs and real-world examples, you’ll quickly build confidence in managing Linux environments. By the end of this course, you’ll have a strong understanding of essential Linux concepts like file permissions, process management, and network configuration. Also, this course covers basic networking, disk management, and process monitoring. Whether you have a career goal in the realms of DevOps, cybersecurity, or cloud engineering, learn Linux today to make more career opportunities pop open in IT, DevOps, SRE, Support, IT helpdesk, IT Admin, cybersecurity, or software development! Practical Skills for Self-Confidence on Any Linux-based System Boost Your Tech Portfolio

            Beginner

            Beginner

            Linux, unix, infrastructure

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            Introduction to Linux : crash course

            amrit

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            Computer Architecture for Non-Majors

            CIK

            We will explain the core computer architecture and operating principles that SW developers need to know in an easy-to-understand manner through illustrations.

            Basic

            Basic

            Computer Architecture, Operating System, cpu

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            Computer Architecture for Non-Majors

            CIK

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            Infrastructure Workshop - Creating a plausible service

            brainbackdoor

            This course proceeds in stages, similar to the actual work, by learning and applying the necessary knowledge while configuring the infrastructure.

            Basic

            Basic

            Network, Linux, Spring Boot

            Infrastructure Workshop - Creating a plausible serviceCourse Thumbnail

            Infrastructure Workshop - Creating a plausible service

            brainbackdoor

            Essential Server Monitoring (Zabbix) for Practical UseCourse Thumbnail

            Essential Server Monitoring (Zabbix) for Practical Use

            yootong

            Learn systematically from the basic usage to the advanced features of Zabbix, an essential tool for effective monitoring of IT infrastructure. We offer the opportunity to grow into a monitoring expert using Zabbix through real-world application examples.

            Beginner

            Beginner

            zabbix, monitoring, Architecture

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            Essential Server Monitoring (Zabbix) for Practical Use

            yootong

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            Computer Engineering for Developers 1: Computer Architecture + Operating Systems for Self-study

            kangminchul

            Bestseller 『Study Computer Architecture + Operating Systems on Your Own』 author's free lecture. A collection of computer architecture and operating systems books that developers must know.

            Beginner

            Beginner

            Computer Architecture, Operating System, Tech Interview

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            Computer Engineering for Developers 1: Computer Architecture + Operating Systems for Self-study

            kangminchul

            Technical Notes - From computer architecture to cloud and big data / Career concerns, employment counselingCourse Thumbnail

            Technical Notes - From computer architecture to cloud and big data / Career concerns, employment counseling

            alec

            I have been working in the IT field for 20 years in development and construction. I would like to be a good guide for those who are entering or starting out in the development field.

            Beginner

            Beginner

            Computer Architecture, Operating System

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            Technical Notes - From computer architecture to cloud and big data / Career concerns, employment counseling

            alec

            [CS Technical Interview 2] Operating Systems Made Clear

            yiyj10305235

            A course that helps you understand core operating system concepts and practice explaining them verbally in interviews

            Beginner

            Beginner

            Operating System, Tech Interview, computer-science

            [CS Technical Interview 2] Operating Systems Made Clear

            yiyj10305235

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            Systems Engineer Textbook

            yootong

            From the fundamentals of systems engineering to security setup, this course will guide you along the way.

            Beginner

            Beginner

            Linux, Ansible, ssl-security

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            Systems Engineer Textbook

            yootong