Beware of Fedora 11's glibc

[Howard Chu <hyc@symas.com>]

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/