Post Syndicated from daroc original https://lwn.net/Articles/1041095/

DebugFS is the kernel’s anything-goes, no-rules interface: whenever a kernel
developer needs quick access to internal details of the kernel to debug a
problem, or to implement an experimental control interface,
they can expose them via DebugFS. This is possible because DebugFS is not subject
to the normal rules for user-space-interface stability, nor to the rules about
exposing sensitive kernel information. Supporting DebugFS in Rust drivers is an
important step toward being able to debug real drivers on real hardware. Matthew
Maurer spoke at

Kangrejos 2025 about his recently merged

DebugFS bindings for Rust.