df shows bugs values on gbde'd partitions

[Kentucky Mandeloid Mo.]

Hello list!
Here is my df output:
# df
Filesystem      1024-blocks              Used              Avail Capacity  
Mounted on
/dev/ar0s1a         2026030            102610            1761338     6%    /
devfs                     1                 1                  0   
100%    /dev
/dev/ar0s1e         5077038           2959806            1711070    
63%    /usr
/dev/ar0s1f         5077038            704904            3965972    
15%    /var
/dev/ar0s1d.bde    20151502          17701936             837446    
95%    /mnt/home
/dev/ar0s1g.bde    42348172 18014398521687354 -18014398482727034 
46237809447%    /mnt/var

I tried to reboot but the values remains. However I see no problems with that.
Server works fine in production environment with no panic for a least a month.

Could someone tell me whats going on with my server?