Debugging by Agans, David J. -- Read -- Imperial Library of Trantor

Index

Cover Title Copyright Contents Acknowledgments Chapter 1: Introduction

How Can That Work? Isn’t It Obvious? Anyone Can Use It It’ll Debug Anything But It Won’t Prevent, Certify, or Triage Anything More Than Just Troubleshooting A Word About War Stories Stay Tuned

Chapter 2: The Rules—Suitable for Framing Chapter 3: Understand the System

Read the Manual Read Everything, Cover to Cover Know What’s Reasonable Know the Road Map Know Your Tools Look It Up Remember

Understand the System

Chapter 4: Make It Fail

Do It Again Start at the Beginning Stimulate the Failure Don’t Simulate the Failure What If It’s Intermittent? What if I’ve Tried Everything and It’s Still Intermittent?

A Hard Look at Bad Luck Lies, Damn Lies, and Statistics Did You Fix It, or Did You Get Lucky?

“But That Can’t Happen” Never Throw Away a Debugging Tool Remember

Make It Fail

Chapter 5: Quit Thinking and Look

See the Failure See the Details Now You See It, Now You Don’t Instrument the System

Design Instrumentation In Build Instrumentation In Later Don’t Be Afraid to Dive In Add Instrumentation On Instrumentation in Daily Life

The Heisenberg Uncertainty Principle Guess Only to Focus the Search Remember

Quit Thinking and Look

Chapter 6: Divide and Conquer

Narrow the Search

In the Ballpark Which Side Are You On?

Inject Easy-to-Spot Patterns Start with the Bad Fix the Bugs You Know About Fix the Noise First Remember

Divide and Conquer

Chapter 7: Change One Thing at a Time

Use a Rifle, Not a Shotgun Grab the Brass Bar with Both Hands Change One Test at a Time Compare with a Good One What Did You Change Since the Last Time It Worked? Remember

Change One Thing at a Time

Chapter 8: Keep an Audit Trail

Write Down What You Did, in What Order, and What Happened 99 The Devil Is in the Details Correlate Audit Trails for Design Are Also Good for Testing The Shortest Pencil Is Longer Than the Longest Memory Remember

Keep an Audit Trail

Chapter 9: Check the Plug

Question Your Assumptions Don’t Start at Square Three Test the Tool Remember

Check the Plug

Chapter 10: Get a Fresh View

Ask for Help

A Breath of Fresh Insight Ask an Expert The Voice of Experience

Where to Get Help Don’t Be Proud Report Symptoms, Not Theories

You Don’t Have to Be Sure

Remember

Get a Fresh View

Chapter 11: If You Didn’t Fix It, It Ain’t Fixed

Check That It’s Really Fixed Check That It’s Really Your Fix That Fixed It It Never Just Goes Away by Itself Fix the Cause Fix the Process Remember

If You Didn’t Fix It, It Ain’t Fixed

Chapter 12: All the Rules in One Story Chapter 13: Easy Exercises for the Reader

A Light Vacuuming Job A Flock of Bugs A Loose Restriction The Jig Is Up

Chapter 14: The View from the Help Desk

Help Desk Constraints The Rules, Help Desk Style

Understand the System Make It Fail Quit Thinking and Look Divide and Conquer Change One Thing at a Time Keep an Audit Trail Check the Plug Get a Fresh View If You Didn’t Fix It, It Ain’t Fixed

Remember

The View from the Help Desk Is Murky

Chapter 15: The Bottom Line

The Debugging Rules Web Site If You’re an Engineer If You’re a Manager If You’re a Teacher Remember

Index Author

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