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(ITS#5112) memory leak in pcache overlay

Full_Name: Ralf Haferkamp
Version: RE23, HEAD
OS: -
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (

Valgrind gives me the log pasted below when I abort an ldapsearch command
(CTRL-C) that is running against a back-ldap database that uses the pcache

==20850== 53,092 (35,830 direct, 17,262 indirect) bytes in 883 blocks are
definitely lost in loss record 17 of 18
==20850==    at 0x4C22AC6: malloc (in
==20850==    by 0x508A940: ber_memalloc_x (memory.c:226)
==20850==    by 0x4ABEEE: slap_sl_malloc (sl_malloc.c:273)
==20850==    by 0x4487C0: filter_dup (filter.c:801)
==20850==    by 0x5AB151: pcache_op_search (pcache.c:2237)
==20850==    by 0x4C3F41: overlay_op_walk (backover.c:642)
==20850==    by 0x4C41D3: over_op_func (backover.c:704)
==20850==    by 0x4C4269: over_op_search (backover.c:726)
==20850==    by 0x446210: fe_op_search (search.c:369)
==20850==    by 0x445B2E: do_search (search.c:217)
==20850==    by 0x4427DB: connection_operation (connection.c:1145)
==20850==    by 0x442CA6: connection_read_thread (connection.c:1271)

The database configuration looks like this:
database ldap
suffix o=test
uri             ldap://xxxxxxxxxxxxxxxxx
readonly        on
lastmod         off

overlay pcache
proxycache      bdb 100000 1 10000 180
proxyattrset    0 givenname uid ou o cn sn mail objectclass

proxytemplate   (|(cn=)(mail=)(uid=)) 0 86400

directory       /var/lib/ldap/pcache
cachesize       10000
index           objectclass,queryid eq
index           sn,cn,givenname,uid,mail pres,eq,sub