Re: pg_upgrade failure "contrib" issue?

Well thought it was maybe just going from 8.4.4 to 9.1.1 so upgraded
to 8.4.9 and tried pg_upgrade again (this is 64bit) and it's failing

-bash-4.0$ /tmp/pg_upgrade --check --old-datadir "/data/db"
--new-datadir "/data1/db" --old-bindir "/ipix/pgsql/bin" --new-bindir
"/ipix/pgsql9/bin"
Performing Consistency Checks
-----------------------------
Checking current, bin, and data directories ok
Checking cluster versions ok
Checking database user is a superuser ok
Checking for prepared transactions ok
Checking for reg* system oid user data types ok
Checking for contrib/isn with bigint-passing mismatch ok
Checking for large objects ok

There were problems executing "/ipix/pgsql/bin/pg_ctl" -w -l
"/dev/null" -D "/data/db" stop >> "/dev/null" 2>&1
Failure, exiting

I've read some re pg_migrator and issues with contribs, but wondered
if there is something "Else" I need to know here

Thanks again
Tory