CONFIG_CPU_ABRT_NOMMU is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_CPU_ABRT_NOMMU (not configurable)

modulename: abort-nommu.ko

configname: CONFIG_CPU_ABRT_NOMMU

Linux Kernel Configuration
└─>CPU_ABRT_NOMMU
In linux kernel since version 2.6.21 (release Date: 2007-04-25)  
source code:
/arch/arm/mm/