[CentOS] df -h shows system at 100% used, but there is space left

Fri Apr 24 16:43:57 UTC 2009
dnk <d.k.emaillists at gmail.com>

Has anyone seen output like this before? Notice on my /dev/md0 That it  
reports 100% used, but also 5.3 Gb available. What would cause this?



# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2              71G  1.6G   66G   3% /
/dev/sda1              99M   22M   73M  23% /boot
tmpfs                 506M     0  506M   0% /dev/shm
/dev/md0              903G  851G  5.3G 100% /home


Thanks in advance!

d