K 10
svn:author
V 3
alc
K 8
svn:date
V 27
2015-01-02T17:45:52.116530Z
K 7
svn:log
V 464
MFC r273701, r274556
  By the time that pmap_init() runs, vm_phys_segs[] has been initialized.
  Obtaining the end of memory address from vm_phys_segs[] is a little
  easier than obtaining it from phys_avail[].

  Enable the use of VM_PHYSSEG_SPARSE on amd64 and i386, making it the
  default on i386 PAE.  (The use of VM_PHYSSEG_SPARSE on i386 PAE saves
  us some precious kernel virtual address space that would have been
  wasted on unused vm_page structures.)

END