I am having the same problem. My indexers are on VMware, ran fine on spunk 5. I am up to the latest rpm.
logindex2 ~]# uname -a
Linux ifw9bct-logindex2.fws.doi.net 2.6.18-371.8.1.el5 #1 SMP Thu Apr 24 18:19:36 EDT 2014 x86_64 x86_64 x86_64 GNU/Linux
logindex2 ~]# cat /etc/redhat-release
CentOS release 5.10 (Final)
logindex2 ~]# splunk --version
Splunk 6.1.1 (build 207789)
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