(ITS#6981) slapd crashes when using sssvlv and pcache overlays

[ctcard@hotmail.com]

Full_Name: Chris Card
Version: HEAD as of 28 Jun 2011
OS: centos 5.4
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (91.194.158.133)


I am running slapd with pcache and sssvlv overlays and back-sql backend.

With an empty cache, when I do a request like this:

ldapsearch -h localhost -x -b "............" -D "............" -w ........
'(o=.....)' -E \!sss=mail:CaseIgnoreIA5Match

slapd crashes in pcache_op_cleanup(), line 2369:


		/* check for malformed entries: attrs with no values */
		{
			Attribute *a = rs->sr_entry->e_attrs; /* <-- HERE */

because rs->sr_entry is NULL.

This appears to be because of the call to rs_flush_entry() in result.c line
1408
which sets rs->sr_entry to NULL prior to the call to pcache_op_cleanup().

The relevant part of my slapd.conf looks like this:

database    sql
suffix      "......"
rootdn      "......"
rootpw      ......
dbname      MySQL
dbuser      ......
subtree_cond    "ldap_entries.dn like CONCAT('%',?)"
insentry_stmt   "INSERT INTO ldap_entries (dn,oc_map_id,parent,keyval) VALUES
(?,?,?,?)"
has_ldapinfo_dn_ru  no
baseobject
upper_func  UPPER
autocommit  yes

overlay pcache
pcache bdb 10000 1 50 100
pcacheAttrset 0 * +
pcacheTemplate (objectClass=) 0 60
pcacheTemplate (o=) 0 60
...
pcache-directory /var/tmp/cache
pcache-cachesize 100
pcache-index objectClass                       eq,pres

overlay sssvlv
sssvlv-max 10
sssvlv-maxpercon 5