CONFIG_ETRAX_KGDB_PORT3 is not available for thedefaultarchitecture x86.
Result is shown for architecture cris
default or selected kernelversion does not have config value CONFIG_ETRAX_KGDB_PORT3.
Result is shown for kernelversion 6.7-rc3
Serial-3
configname: CONFIG_ETRAX_KGDB_PORT3
Kernel GDB port
└─>Serial-3
In linux kernel since version 2.6.13 (release Date: 2005-08-28)
Use serial port 3 for kernel debugging.