olcDbConfig: value #14 provided more than once

[Matthew Edlefsen <matt.edlefsen@gmail.com>]

Hello, I'm trying to do multi-master replication and after following
the directions in the User Guide I came across the error:

Aug  3 20:21:38 gabbro slapd[81578]: syncrepl_message_to_entry:
rid=001 mods check (olcDbConfig: value #14 provided more than once)

This is from the logs when it is syncing the cn=config tree.  The
especially odd thing about this error is that olcDbConfig is one of
the numbered entries (the ones with {#} prepending each value), not to
mention that the line is question is blank.   This isn't the first
time I've encountered this error when trying to do this type of thing
(alas, I never got around to trying to fix it before :) ), so I'm
hoping that means either I'm doing something obviously wrong or
somebody has seen this before.

Both servers are freebsd jails running FreeBSD 7.2 Stable.

Here are some of the relevant configs. These are not the full entries,
just the important bits.  They are identical on both servers and they
do sync parts of the config (everything up to the value that fails).

dn: cn=config
olcServerID: 1 ldap://rock.earlham.edu/
olcServerID: 2 ldap://gabbro.earlham.edu/

dn: olcDatabase={0}config,cn=config
olcSyncrepl: {0}rid=001 provider=dap://rock.earlham.edu/
binddn="<snip>" bindmethod=simple credentials=<snip>
    searchbase="cn=config" type=refreshAndPersist      retry="5 5 300
5" timeout=1
olcSyncrepl: {1}rid=002 provider=ldap://gabbro.earlham.edu/
binddn="<snip>" bindmethod=simple credentials=<snip>
    searchbase="cn=config" type=refreshAndPersist      retry="5 5 300
5" timeout=1
olcMirrorMode: TRUE

olcOverlay={0}syncprov,olcDatabase={0}config,cn=config
objectClass: olcOverlayConfig
objectClass: olcSyncProvConfig
olcOverlay: {0}syncprov

olcDatabase={1}bdb,cn=config
olcDbConfig: {0}# $OpenLDAP: pkg/ldap/servers/slapd/DB_CONFIG,v
1.3.2.4 2007/12/18 11:53:27 ghenry Exp $
olcDbConfig: {1}# Example DB_CONFIG file for use with slapd(8) BDB/HDB
databases.
olcDbConfig: {2}#
olcDbConfig: {3}# See the Oracle Berkeley DB documentation
olcDbConfig: {4}#
<http://www.oracle.com/technology/documentation/berkeley-db/db/ref/env/db_config.html>
olcDbConfig: {5}# for detail description of DB_CONFIG syntax and semantics.
olcDbConfig: {6}#
olcDbConfig: {7}# Hints can also be found in the OpenLDAP Software FAQ
olcDbConfig: {8}#       <http://www.openldap.org/faq/index.cgi?file=2>
olcDbConfig: {9}# in particular:
olcDbConfig: {10}#   <http://www.openldap.org/faq/index.cgi?file=1075>
olcDbConfig: {11}
olcDbConfig: {12}# Note: most DB_CONFIG settings will take effect only
upon rebuilding
olcDbConfig: {13}# the DB environment.
olcDbConfig: {14}
olcDbConfig: {15}# one 1 GB cache
olcDbConfig: {16}set_cachesize 0 1073741824 1
olcDbConfig: {17}
olcDbConfig: {18}# Data Directory
olcDbConfig: {19}#set_data_dir db
olcDbConfig: {20}
olcDbConfig: {21}# Transaction Log settings
olcDbConfig: {22}set_lg_regionmax 262144
olcDbConfig: {23}set_lg_bsize 104857600
olcDbConfig: {24}set_lk_max_locks 100000
olcDbConfig: {25}#set_lg_dir logs
olcDbConfig: {26}
olcDbConfig: {27}# Note: special DB_CONFIG flags are no longer needed
for "quick"
olcDbConfig: {28}# slapadd(8) or slapindex(8) access (see their -q option).

Thanks!

Matt Edlefsen
Earlham College