MEM(4)MEM(4)NAME
mem, kmem - main memory
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 even to patch)
the system.
Byte addresses in mem are interpreted as physical memory addresses.
References to non-existent locations cause errors to be returned.
The file kmem is the same as mem except that kernel virtual memory
rather than physical memory is accessed. Only kernel virtual addresses
that are mapped to memory are allowed. Examining and patching device
registers is likely to lead to unexpected results when read-only or
write-only bits are present.
FILES
/dev/mem
/dev/kmem
4th Berkeley Distribution March 10, 1990 MEM(4)