invalidate: busy buffer

When parted does something, *anything*, i receive lots and lots of lines
with this message "invalidate: busy buffer".

What does it mean?

-- 
"Life? What life? Life is for wussies, computers are for real men."
 - Andy
                            . /\ °
Real Name: Lorenzo Petrone   <* >
Web: lano.webhop.net          \/ ·