kmem man page on DigitalUNIX

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kmem(7)								       kmem(7)

NAME
       kmem - mapped kernel memory interface

DESCRIPTION
       The kmem character special device provides access to mapped kernel mem‐
       ory.

       Byte  addresses	in  kmem  are  equivalent  to  mapped  kernel	memory
       addresses.  References  to unmapped or user space addresses will return
       an error. Write accesses to console or PAL memory  or  to  memory  pro‐
       tected against writes will also return an error.

RESTRICTIONS
       Because memory is read and written in aligned quadwords (eight contigu‐
       ous bytes), writing fewer than all the bytes in an aligned quadword  is
       a  read-modify-write  operation that is not protected against writes to
       the same quadword.

       Device registers are accessed as aligned quadwords through kmem.

       The kmem file is not available as a memory mapped file.

FILES
       /dev/kmem

SEE ALSO
       mem(7)

								       kmem(7)
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