sbsize - console messages

[Grant Peel]

Hi all,

I orriginally posted this to -questions and someone there suggest I post 
here ...

I am using FreeBSD 8.0 and am getting lots of these:

negative sbsize for uid = 0
+negative sbsize for uid = 0
+negative sbsize for uid = 0
+negative sbsize for uid = 0
+negative sbsize for uid = 0

any ideas what it means or how to cure it?, or even how to trace it down?

-Grant