mem.7 (2010 09)

mem(7) mem(7)

NAME

mem - main memory image ﬁle

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 loca-

tions cause errors to be returned.

File

kmem is the same as mem except that kernel virtual memory rather than physical memory is

accessed. Please 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.

FILES

/dev/mem

/dev/kmem

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mem(7) mem(7) NAME mem - main memory image file 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.
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(Notes) A (Notes) mA 2 Hewlett-Packard Company −1− HP-UX 11i Version 3: September 2010