Accelerated .NET Core Memory Dump Analysis
Accelerated .NET Core Memory Dump Analysis
Training Course Transcript and WinDbg Practice Exercises
About the Book
The full transcript of Software Diagnostics Services training with 9 step-by-step exercises, notes, and source code of specially created modeling applications. The course covers 19 .NET memory dump analysis patterns plus additional 19 unmanaged patterns. Learn how to analyze .NET Core 5/6 application and service crashes and freezes, navigate through memory dump space (managed and unmanaged code) and diagnose corruption, leaks, CPU spikes, blocked threads, deadlocks, wait chains, resource contention, and much more. The training consists of practical step-by-step exercises using Microsoft WinDbg debugger to diagnose patterns in 64-bit process memory dumps. The training uses a unique and innovative pattern-oriented analysis approach to speed up the learning curve. The book is based on the previous fourth edition of Accelerated .NET Memory Dump Analysis that covered .NET Core 5 and Windows 10. It is updated for the latest WinDbg from Windows 11 SDK and has a new .NET Core 6 exercise with a memory dump from Windows 11. This edition also includes a possibility to use a Docker WinDbg image with required symbol files instead of a local Debugging Tools for Windows installation. Prerequisites: Basic .NET programming and debugging. Audience: Software technical support and escalation engineers, system administrators, DevOps, performance and reliability engineers, software developers, and quality assurance engineers. The book may also interest security researchers, reverse engineers, malware and memory forensics analysts. The revised edition uses the latest WinDbg Preview for all exercise transcripts.
Table of Contents
About the Author 5
Introduction 7
Practice Exercises 25
Exercise 0: Download, setup, and verify your WinDbg Preview or WinDbg installation, or Docker Debugging Tools for Windows image 30
Exercise PNC1: Analysis of an application process dump (ApplicationA, 64-bit) 45
Exercise PNC2: Analysis of an application process dump (ApplicationA, 32-bit) 62
Exercise PNC3: Analysis of an application process dump (LINQPadB, 64-bit) 80
Exercise PNC4: Analysis of an application process dump (LINQPadC, 64-bit) 106
Exercise PNC5: Analysis of an application process dump (ApplicationD, 64-bit) 123
Exercise PNC6: Analysis of an application process dump (LINQPadD, 64-bit) 138
Exercise PNC7: Analysis of an application process dump (LINQPadE, 64-bit) 152
Exercise PNC8: Analysis of an application process dump (LINQPadF, 64-bit) 159
Conclusion 183
Application Source Code 191
ApplicationA 193
LinqB 194
LinqC 195
ApplicationD 197
LinqD 199
LinqE 201
LinqF 203
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