After upgrading sssd, authentication errors may be observed on a busy system.
Following errors are seen in /var/log/secure
pam_sss(server:auth): authentication failure; logname= uid=xxxx euid=xxxx tty= ruser= rhost= user=xxx pam_sss(server:auth): received for user user1: 4 (System error)
- Red Hat Enterprise Linux 6.5 upgraded to Red Hat Enterprise Linux 6.6
- sssd upgraded from 1.9.2-129 to 1.11.6-30 or later
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