CONFIG_060_WRITETHROUGH is not available for the default architecture x86.
Result is shown for architecture m68k

Use write-through caching for 68060 supervisor accesses


Linux Kernel Configuration
└─> Use write-through caching for 68060 supervisor accesses

The 68060 generally uses copyback caching of recently accessed data.
Copyback caching means that memory writes will be held in an on-chip
cache and only written back to memory some time later. Saying Y
here will force supervisor (kernel) accesses to use writethrough
caching. Writethrough caching means that data is written to memory
straight away, so that cache and memory data always agree.
Writethrough caching is less efficient, but is needed for some
drivers on 68060 based systems where the 68060 bus snooping signal
is hardwired on. The 53c710 SCSI driver is known to suffer from
this problem.