From: eLinux.org

Debugging Tips

  • See the Debugging_Portal
    page
  • See the Kernel Debugging
    Tips     page
  • See also Debugging
    Makefiles
  • Debugging by
    printing
  • Debug user-space initialization:
    • If you get a panic - “not syncing: Attempted to kill init!” it
      can be for many different reasons. Try setting
      CONFIG_DEBUG_USER=y in your .config and pass ‘user_debug=255’
      in the kernel command line. That will give you a more verbose
      output about why user space programs crash. Thanks to Daniel
      Mack on the linux-arm-kernel mailing list for this tip.

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