Why is the sssd daemon throwing 'dereference processing failed : Input/output error' on Red Hat Enterprise Linux?

Solution Verified - Updated -


  • On a Red Hat Enterprise Linux 6 system configured as Active Directory client using sssd, sssd daemon is logging the following message in /var/log/messages :
sssd[be[AD.EXAMPLE.COM]]: dereference processing failed : Input/output error


  • Red Hat Enterprise Linux
  • LDAP server (Active Directory server/ Red Hat Directory Server(RHDS) / OpenLDAP / SunOne Directory server)

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