(ITS#7791) 3-Way delta MMR segfault

[marvin.mundry@uni-hamburg.de]

Full_Name: Marvin Mundry
Version: slapd 2.4.38
OS: Ubuntu 12.04
URL: http://attachment.rrz.uni-hamburg.de/rzrv002/bug.tar.bz
Submission from: (NULL) (134.100.2.183)


i have set up a 3-Way delta MMR replication.
when i add the third machine to the replication (zd-ldap-3) that machine starts
replicating objects but segfaults at some point during replication.


i have
* build openldap slapd 2.4.38 with the configuration shown in build.txt (in the
attached file)
* slapadd -S 1 -l /usr/local/openldap/etc/openldap/slapd.ldif -F
/usr/local/openldap/etc/openldap/slapd.d -bcn=config (slapd.ldif is contained in
the attached file)
* started up zd-ldap-next-1
* imported ~67'000 objects via ldapadd
* on zd-ldap-next-1: slapcat -bcn=config -F
/usr/local/openldap/etc/openldap/slapd.d/ -l /tmp/configbk.ldif
* scp /tmp/configbk.ldif from zd-ldap-1 --to--> zd-ldap-2 and zd-ldap-3
* on zd-ldap 2 and 3: slapadd -b cn=config -l /tmp/configbk.ldif -F
/usr/local/openldap/etc/openldap/slapd.d
* started up slapd on zd-ldap-2
* waited for the replication to finish (worked fine)
* started up slapd on zd-ldap-3
* waited for the replication to finish ==> segfault after replication of ~40'000
objects (the number differs when i try to reproduce the bug (i.e. replication
does not always fail at the same object))