I am trying to track down the cause of some errors that have been 
occurring on a number of our servers using LDAP. We have noticed that 
when a certain LDAP group exceeds 65 users we begin seeing glibc errors 
for users in the group. Users that are not in the group do not exhibit 
this behavior.
<br>
<br>We have seen this issue on machines running Centos 4.5 x86 &amp; x86_64 with 
glibc-2.3.4-2.36 and RH4 x86_64 running glibc-2.3.4-2.25. We are running 
Fedora Directory Server 1.0.4 on Centos 4.5. We have added a 3rd FDS 
slave and turned up debugging but have not seen anything that appears to 
be relevant in the logs on the 3rd slave.
<br>
<br>This problem is not a 65 user limit as we have other groups with well 
over 65 members that do not display this behavior. We also created a new 
group with identical users and it did not display this problem.
<br>
<br>1) With 66 users in the massweb group
<br>
<br>[root@megalon ~]# getent group massweb
<br>*** glibc detected *** free(): invalid next size (normal): 0x09a225b0 ***
<br>Aborted
<br>
<br>
<br>2) After removing any user from the massweb group to reduce the total 
members to 65
<br>
<br>[root@megalon ~]# getent group massweb
<br>massweb:x:3016:afaxon,ashairza,ccrump,jhorowit,mmarum,morendai,usmall,adroffne,afaxon,amurphre,aoliver,ayellipe,bdonohue,bdunn,beckert,blarsen,bwphilli,catanis,ccrump,chaynes,clyons,cwong,dbarber,dmuse,dnicol,edougher,egallant,ekubosia,evizcain,feeddrop,gtulonen,halokush,hbraverm,jbartus,jbrown,jhobbs,jking,jlederma,jpecora,jthayer,kbalbedi,kbeam,kginn,mbuonfig,mcrawfor,mlarsen,mlong,mwalsh,osedano,proche,prondeau,pweinber,rhorriga,rkersey,rskutins,sasaro,sbrodeur,sculver,smoriart,support,swestenh,tbaltimo,torgelfi,usmall,vvalenti
<br>
<br>
<br>Has anyone encountered a similar problem with nss_ldap or pam_ldap? Any suggestions would be most
<br>welcome.
<br>
<br>Best regards<br>-BO<br>