3.7. Mount debugfs

debugfs is file system specially designed for debugging and making information available to users. Mount debugfs for use with MRG Realtime functions ftrace and trace-cmd.
  1. Mount the kernel to /sys/kernel/debug and instruct it to use the debugfs file system.
    # mount -t debugfs nodev /sys/kernel/debug
    
  2. You can choose to make the debugfs directory mount automatically on boot. You can do this by opening the /etc/fstab file in your preferred text editor, and adding the following line:
    nodev /sys/kernel/debug	   debugfs   defaults   0  0