Size of index showing a minus (-) value

[legedza.henry]

We are seeing a couple of large profiles with a - number for the size.

eg Success. 18,983 pages (-1,807,167,850 bytes) (16,215 errors) (3,953 duplicates)

What does the minus indicate?

Thanks
Henry

[mark]

The number rolled over past 2 billion. The byte count in the status is not accurate past 2 billion.