operating system developers , using the Rust language and the microkernel concept, about implementing the ability to debug applications using the GDB debugger. To use GDB, uncomment the gdbserver and gnu-binutils lines in the filesystem.toml file and run the gdb-redox layer, which will start its own gdbserver and connect it to gdb via IPC. Another option is to start a separate gdbserver (receiving connections on network port 64126) and connect to it over the GDB network running on an external Linux system.
Source: opennet.ru