CONFIG_MMU is not available for the selected architecture x86.
Result is shown for architecture s390

CONFIG_MMU (not configurable)

modulename: fault-armv.ko

and/or

min_addr.ko

and/or

pci-dma.ko

and/or

cache.ko

and/or

bugs.ko

and/or

vdso.ko

and/or

fault.ko

configname: CONFIG_MMU

Linux Kernel Configuration
└─>MMU
In linux kernel since version 2.6.12 )
source code:
/arch/arm/mm/

is depended by
CONFIG_XTENSA_VARIANT_MMU