portupgrade broken?

[Derrick Ryalls]

> [Updating the portsdb <format:bdb1_btree> in /usr/ports ... - 11733 port
> entries found
> .........1000.........2000.........3000.........4000.........5000.......
> ..6000.........7000.........8000..../usr/local/lib/ruby/site_ruby/1.8/po
> rtsdb.rb:587: [BUG] Bus Error
> 

I could be wrong, but it could be a hardware issue.  How long since
you backed up last?