Proposed new sysctl MIB nodes

The GCC folks have recently started using the HW_PHYSMEM and HW_USERMEM
sysctl MIB nodes to tune the behavior of the garbage collecting memory
allocator in GCC.  It was pointed out there that these totally fall over
with >=4G of RAM, since it's a 32-bit quantity that returns the number
of bytes.

I'd like to propose new HW_PHYSPAGES and HW_USERPAGES MIB nodes that
return the same information, but in a 32-bit page count, instead.  The
implementation is left as an exercise to the reader.  I just want to get
consensus on the names, so that I can tell the GCC people about it, and
have it work on all the BSD platforms (as their current sysctl code does).

-- 
        -- Jason R. Thorpe <thorpej-DZEk9q7Sfju/3pe1ocb+swC/[email protected]>

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