Enhancement of the "kmem -i" option to display memory overcommit
information, which will be appended to the traditional output of
the command.  For example:

  crash> kmem -i
                     PAGES        TOTAL      PERCENTAGE
        TOTAL MEM  1965332       7.5 GB         ----
             FREE    78080       305 MB    3% of TOTAL MEM
             USED  1887252       7.2 GB   96% of TOTAL MEM
           SHARED   789954         3 GB   40% of TOTAL MEM
          BUFFERS   110606     432.1 MB    5% of TOTAL MEM
           CACHED  1212645       4.6 GB   61% of TOTAL MEM
             SLAB   146563     572.5 MB    7% of TOTAL MEM

       TOTAL SWAP  1970175       7.5 GB         ----
        SWAP USED        5        20 KB    0% of TOTAL SWAP
        SWAP FREE  1970170       7.5 GB   99% of TOTAL SWAP

     COMMIT LIMIT  2952841      11.3 GB         ----
        COMMITTED  1150595       4.4 GB   38% of TOTAL LIMIT

The COMMIT LIMIT and COMMITTED information is similar to that
displayed by the CommitLimit and Committed_AS lines in /proc/meminfo.
(atomlin@redhat.com)