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4.6. System debugging method

• 4.6.1. pstore & ramoops
  • 4.6.1.1. Introduction to pstore
  • 4.6.1.2. pstore Principle
  • 4.6.1.3. pstore Types
  • 4.6.1.4. Introduction to ramoops
  • 4.6.1.5. ramoops Usage
    • Enable ramoops in Kernel
    • Configure ramoops Reserved Memory
    • Trigger Kernel Panic in Kernel
    • Verify ramoops Functionality
• 4.6.2. mem-dump Feature Guide
  • 4.6.2.1. Overview
    • Introduction
    • mem-dump Information
      • User Space Information
      • Kernel Information
      • Crash Context
  • 4.6.2.2. X5 mem-dump Feature Introduction
    • Feature Highlights
    • Functional Principle
  • 4.6.2.3. mem-dump Configuration
    • Get panic-action
    • Configure panic-action
  • 4.6.2.4. mem-dump Usage
    • Configure panic-action
    • Perform mem-dump to emmc
  • 4.6.2.5. mem-dump Analysis Method
  • 4.6.2.6. Common Issues
    • panic-action not configured before crash
    • Does configuring panic-action affect reboot or cold boot?
• 4.6.3. Using GDB to Debug Applications
  • 4.6.3.1. GDB Overview
  • 4.6.3.2. Main Features of GDB
  • 4.6.3.3. Common GDB Debugging Commands
  • 4.6.3.4. Introduction to Specific GDB Debugging Methods
    • Writing a Test Program
    • Compilation
    • GDB Debugging Process
    • Analyzing Core Dump Files with GDB
  • 4.6.3.5. Common Issues
  • 4.6.3.6. References
• 4.6.4. Using Kdb/Kgdb to Debug the Kernel
  • 4.6.4.1. Overview of Kdb/Kgdb
  • 4.6.4.2. Introduction to Kdb/Kgdb Features
    • Introduction to Kdb Features
    • Introduction to Kgdb Features
    • Comparison Between Kdb and Kgdb
  • 4.6.4.3. Specific Usage Methods of Kdb/Kgdb
    • Enabling Kdb/Kgdb
    • Starting Kdb Debugging on the Board
      • Starting Kdb During U-Boot Stage
      • Starting Kdb After Kernel Boot
    • Introduction to Kdb Debugging Commands
    • Remote Connection to Board for Kgdb Debugging
  • 4.6.4.4. Common Issues
    • Common Kdb Issues
    • Common Kgdb Issues
• 4.6.5. DDR Digital eye diagram
  • 4.6.5.1. X5 DDR digital eye diagram tool instructions and results analysis
    • background
    • Tool usage instructions
      • reboot command
      • bl2_cfg configuration
    • DDR eye diagram analysis
      • Eye diagram information description
    • Eye diagram evaluation criteria
    • Notes