MAXDSIZ and MAXSIZ

[Dennis George]

I was going through the following post to understand MAXDSIZ and MAXSSIZ.......
Its really a helpfull post.......
 
http://docs.freebsd.org/cgi/getmsg.cgi?fetch=83003+0+archive/2002/freebsd-hackers/20020804.freebsd-hackers
 
But I have a doubt about this....... Is the MAXDSIZ the offset .... or its the actual size.... From the diagram explained in the above link..... Where can I fit MAXSSIZ in the diagram..... If its a offset.... 
 
And one more thing.... Does the Kernel occupies 1GB of VM ???? as depicted by the diagram ???????
 
Waiting for your answers
 
Thanks in advance
Dennis
 
 

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