Pmemdump

Name

pmemdump - dump physical memory

Synopsis

$ pmemdump [-r] <offset> <length>

Description

Dump a portion of the physical memory space.

Options

• -r: Dump from /dev/mem with read(2) instead of doing mmap(2) on it.

Examples

$ pmemdump -r 983040 65536
$ pmemdump 983040 65536

Notes

The pmemdump utility opens the /dev/mem file, and gets a mapping by doing mmap(2) on it.

Using the -r flag might be useful sometimes, especially when reading from an unaligned reserved physical memory region when trying to mmap(2) /dev/mem on the specified offset fails.

See also

• mem(4)