CONFIG_DEBUG_NMI_OOPS is not available for thedefaultarchitecture x86.
Result is shown for architecture cris
default or selected kernelversion does not have config value CONFIG_DEBUG_NMI_OOPS.
Result is shown for kernelversion 6.7-rc3

NMI causes oops printout


Linux Kernel Configuration
└─>Kernel hacking
└─>NMI causes oops printout
In linux kernel since version 2.6.13 (release Date: 2005-08-28)  
If the system locks up without any debug information you can say Y
here to make it possible to dump an OOPS with an external NMI.