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delete kerneltrap.org URL (it's gone); use man page instead
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http://kerneltrap.org/man/linux/man4/kmem.4 | * see `man 4 kmem` |
Here is how the kmem can be statically created:
see man 4 kmem
- It is typically created by: mknod -m 660 /dev/mem c 1 1 chown root:kmem /dev/mem The file kmem is the same as mem , except that the kernel virtual memory rather than physical memory is accessed.
- . It is typically created by: mknod -m 640 /dev/kmem c 1 2 chown root:kmem /dev/kmem portfP is similar to mem , but the I/O ports are accessed.
- . It is typically created by: mknod -m 660 /dev/port c 1 4 chown root:mem /dev/port
And here is the description on the difference between kmem and mem.