Accelerated Linux Core Dump Analysis
Accelerated Linux Core Dump Analysis
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Accelerated Linux Core Dump Analysis

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Completed on 2019-12-26

About the Book

The full transcript of Software Diagnostics Services training. Learn how to analyse Linux process crashes and hangs, navigate through process core memory dump space and diagnose corruption, memory leaks, CPU spikes, blocked threads, deadlocks, wait chains, and much more. This book uses a unique and innovative pattern-oriented diagnostic analysis approach to speed up the learning curve. The training consists of 13 practical step-by-step exercises using GDB debugger highlighting more than 25 memory analysis patterns diagnosed in 64-bit process core memory dumps. The training also includes source code of modelling applications, a catalogue of relevant patterns from Software Diagnostics Institute, and an overview of relevant similarities and differences between Windows and Linux user space memory dump analysis useful for engineers with Wintel background.

About the Author

Dmitry Vostokov
Dmitry Vostokov

Dmitry Vostokov is an internationally recognized expert, speaker, educator, scientist and author. He is the founder of pattern-oriented software diagnostics, forensics and prognostics discipline and Software Diagnostics Institute. Vostokov has also authored more than 50 books on software diagnostics, anomaly detection and analysis, software and memory forensics, root cause analysis and problem solving, memory dump analysis, debugging, software trace and log analysis, reverse engineering and malware analysis. He has more than 25 years of experience in software architecture, design, development and maintenance in a variety of industries including leadership, technical and people management roles. Dmitry also founded Syndromatix, Anolog.io, BriteTrace, DiaThings, Logtellect, OpenTask Iterative and Incremental Publishing and Software Diagnostics Technology and Services (former Memory Dump Analysis Services) and Software Prognostics. In his spare time, he presents various topics on Debugging TV and explores Software Narratology, its further development as Narratology of Things and Diagnostics of Things (DoT), and Software Pathology. His current areas of interest are theoretical software diagnostics and its mathematical and computer science foundations, application of artificial intelligence, machine learning and data mining to diagnostics and anomaly detection, software diagnostics engineering and diagnostics-driven development, diagnostics workflow and interaction.

Table of Contents

Presentation Slides and Transcript 5

Core Dump Collection 25

Practice Exercises 31

Exercise 0 36

Exercise A1 40

Exercise A2D 53

Exercise A2C 58

Exercise A3 62

Exercise A4 66

Exercise A5 72

Exercise A6 76

Exercise A7 93

Exercise A8 102

Exercise A9 117

Exercise A10 132

Exercise A11 149

Exercise A12 157

App Source Code 171

App0 173

App1 174

App2D 175

App2C 177

App3 179

App4 181

App5 183

App6 185

App7 187

App8 189

App9 191

App10 193

App11 / App12 195

Selected Patterns 197

NULL Pointer (data) 199

Incomplete Stack Trace 200

Stack Trace 201

NULL Pointer (code) 202

Spiking Thread 203

Dynamic Memory Corruption (process heap) 204

Execution Residue 205

Coincidental Symbolic Information 207

Stack Overflow (user mode) 208

Divide by Zero (user mode) 209

Local Buffer Overflow 210

C++ Exception 211

Paratext 212

Active Thread 213

Lateral Damage 214

Critical Region 215

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