Why does krb5kdc segfaults with message "krb5kdc : segfault at 0 ip sp error 6 in libc-2.17.so" in Red Hat Enterprise Linux 7?

Solution Verified - Updated -

Issue

  • Kerberos crashes every week or two , causing Red Hat Identity Management (IPA) server stop working.
var/log/messages-20150427:Apr 21 19:07:29   kernel: krb5kdc[4156]: segfault at 0 ip 00007fa9f64d82bb sp 00007fffd68b2340 error 6 in libc-2.17.so[7fa9f63cd000+1b6000]
var/log/messages-20150511:May 10 13:57:43   kernel: krb5kdc[2493]: segfault at 0 ip 00007f1b9cd382bb sp 00007fffd9c20fa0 error 6 in libc-2.17.so[7f1b9cc2d000+1b6000]

Environment

  • Red Hat Enterprise Linux 7.1
  • Red Hat Identity Management (IPA)
  • krb5-server-1.12.2-14.el7.x86_64
  • ipa-server-4.1.0-18.el7_1.3.x86_64

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