mount recovery taking quite long time

[Arkadiusz Miśkiewicz]

3.0.17 kernel, 800GB fs, fresh boot, mount of /home at boot (so no daemons 
running yet),  and :

[   17.768459] XFS (md3): Starting recovery (logdev: internal)
[  872.427061] XFS (md3): Ending recovery (logdev: internal)

That mount was after (unfortunate) machine reset while it was doing many 
things.

The question is - what could take so long in here?
-- 
Arkadiusz Miśkiewicz        PLD/Linux Team
arekm / maven.pl            http://ftp.pld-linux.org/