From this bug it appears there's a known history of problems with the
experimental malloc being used in the new glibc.
https://bugzilla.redhat.com/show_bug.cgi?id=494631
It appears that slapd is hitting some issues in this code still, even though
the other symptoms in that bug report are marked as fixed. LD_PRELOADing a 3rd
party malloc library shows no issues and likewise valgrind finds no invalid
memory accesses in our code. I was seeing crashes on x86_64; the 32 bit code
may actually be fixed by now.
Just an fyi. I've already spent more than 2 weeks looking for a memory
overwrite in slapd only to find that the malloc library is broken. I can't
afford to spend any more time tracking this down.
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
