df showing weird stats for nfs mounts

[Conrad J. Sabatier]

[ irrelevant lines snipped ]

dolphin:conrads:/usr/home/conrads$ df -H
Filesystem                      Size    Used   Avail Capacity  Mounted on
gateway:/mm                    83906   30871      0B   100%    /mm
gateway:/usr/home/ncvs         83906    -456      0B   100%    /usr/home/ncvs
gateway:/usr/ports/distfiles   83906    -456      0B   100%    /usr/ports/distfiles

dolphin:conrads:/usr/home/conrads$ ssh gateway df -H
Filesystem     Size    Used   Avail Capacity  Mounted on
/dev/ad0s1f     34G     11G     21G    35%    /usr
/dev/ad1s1e     79G     71G    3.6G    95%    /mm

dolphin:conrads:/usr/home/conrads$ uname -a FreeBSD dolphin.local.net
6.0-CURRENT FreeBSD 6.0-CURRENT #0: Fri Dec 10 21:22:39 CST 2004    
conrads at dolphin.local.net:/usr/obj/usr/src/sys/CUSTOM  amd64

-- 
Conrad J. Sabatier <conrads at cox.net> -- "In Unix veritas"