Search notes:

/sys/kernel/debug

/sys/kernel/debug is the directory on which debugfs is typically mounted.
The purpose of this file system is to make information available to user space.
It differs from /proc in that /proc makes process related information information available.
It also differs from the sysfs file system (/sys) because sysfs allows one value per file only and /sys/kernel/debug explicitely does not state any rule on the format of its files.

See also

/sys/kernel, /sys/kernel/tracing
ftrace

Index

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