Having run out of inodes on my 3GB /usr partition, I wanted to
re-newfs the partition with more inodes.  But somewhere along the
line, newfs became awfully fussy about filesystem sizes:

      With a block size of 32768 minimum bytes per inode is 5416
      Minimum bytes per inode is 5416
      With 16065 sectors per cylinder, minimum cylinders per group is 64
      This requires the block size to be changed from 8192 to 32768
      	and the fragment size to be changed from 1024 to 4096

Given that the filesystem currently works perfectly well with 16
cylinders per group and block sizes of 8K/1K, the word "requires"
seems to be rather strong.  I see that newfs changed on March 17;
did some calculations get biffed, or was there always some bizarre
bug lurking there, corrupting filesystems (or at least rendering them
wasteful)?