[CentOS] openldap 5.1 crashing

Hi
 One of our server opneldap seems to crash ...  following is info about my
ldap.
nss_ldap-253-3
php-ldap-5.1.6-5.el5
openldap-2.4.11-1.3.el5
openldap-servers-2.4.11-1.3.el5
compat-openldap-2.4.11_2.3.27-1.3.el5
openldap-clients-2.4.11-1.3.el5
openldap-devel-2.4.11-1.3.el5
And m getting error on command slapcat
[root@ ldap]# slapcat
bdb_db_open: DB_CONFIG for suffix "o=nerv_ldap" has changed.
Performing database recovery to activate new settings.
bdb_db_open: database "o=nerv_ldap": recovery skipped in read-only mode. Run
manual recovery if errors are encountered.
bdb(o=nerv_ldap): Logging region out of memory; you may need to increase its
size
bdb_db_open: database "o=nerv_ldap": db_open(/var/lib/ldap/id2entry.bdb)
failed: Cannot allocate memory (12).
backend_startup_one: bi_db_open failed! (12)
slap_startup failed
has any one faced any similar issue !! .
Thanks a million


-- 
Regards
Agnello D'souza
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