DESCRIPTION
mem
is a special file that is an image of the main memory
of the computer.
It may be used, for example, to examine and patch the system.
Byte addresses in
mem
are interpreted as physical memory addresses.
References to non-existent locations cause errors to be returned.
File
kmem
is the same as
mem
except that kernel virtual memory rather than physical memory is accessed.
Refer to
kmem(7)
for information about ioctl operations that
are supported on
/dev/kmem.
WARNINGS
Examining and patching device registers is likely to lead to unexpected
results when read-only or write-only bits are present.
