(ITS#5053) openldap 2.3.36 crashing

[igbed@wmin.ac.uk]

Full_Name: Damian Igbe
Version: 2.3.6
OS: SLES 10
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (161.74.11.24)


I have a delta-syncrepl replication working with password policy in place.
Authentication to the master works fine but when a client tries to authenticate
to the replica server, the following bug is encountered and the system crashes.

bdb_modify: modify failed (20)
send_ldap_result: conn=1 op=3 p=3
send_ldap_response: msgid=4 tag=97 err=49
ber_flush: 82 bytes to sd 17
slapd: ppolicy.c:847: ctrls_cleanup: Assertion `rs->sr_ctrls != ((void *)0)'
failed.
Aborted

Please help.
Thanks
Damian

It also happens in other instances with errors such as:

=> key_change(DELETE,13)
<= key_change 0
=> key_change(ADD,13)
<= key_change 0
=> entry_encode(0x00000013):
uid=delaitt,ou=staff,ou=users,dc=cscs,dc=wmin,dc=ac,dc=uk
bdb_modify: updated id=00000013
dn="uid=delaitt,ou=staff,ou=users,dc=cscs,dc=wmin,dc=ac,dc=uk"
send_ldap_result: conn=2 op=3 p=3
bdb_dn2entry("uid=delaitt,ou=staff,ou=users,dc=cscs,dc=wmin,dc=ac,dc=uk")
bdb_entry_get: rc=0
bdb_dn2entry("uid=delaitt,ou=staff,ou=users,dc=cscs,dc=wmin,dc=ac,dc=uk")
bdb_entry_get: rc=0
bdb_dn2entry("uid=delaitt,ou=staff,ou=users,dc=cscs,dc=wmin,dc=ac,dc=uk")
bdb_entry_get: rc=0
bdb_dn2entry("uid=delaitt,ou=staff,ou=users,dc=cscs,dc=wmin,dc=ac,dc=uk")
bdb_modify_internal: 0x00000013:
uid=delaitt,ou=staff,ou=users,dc=cscs,dc=wmin,dc=ac,dc=uk
bdb_modify: modify failed (20)
send_ldap_result: conn=2 op=3 p=3
send_ldap_response: msgid=4 tag=97 err=49
ber_flush: 82 bytes to sd 17
slapd: ppolicy.c:847: ctrls_cleanup: Assertion `rs->sr_ctrls != ((void *)0)'
failed.
Aborted