I have one RHEL server and upgraded it from 7.7 to 7.9 after which sssd service went to failed state.
● sssd.service - System Security Services Daemon
Loaded: loaded (/usr/lib/systemd/system/sssd.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Tue 2021-07-06 08:41:06 CEST; 5s ago
Process: 61870 ExecStart=/usr/sbin/sssd -i ${DEBUG_LOGGER} (code=exited, status=1/FAILURE)
Main PID: 61870 (code=exited, status=1/FAILURE)
Jul 06 08:41:06 <server> sssd_be[63155]: GSSAPI client step 1
Jul 06 08:41:06 <server> sssd_be[63155]: GSSAPI client step 1
Jul 06 08:41:06 <server> sssd_be[63155]: GSSAPI client step 1
Jul 06 08:41:06 <server> sssd_be[63155]: GSSAPI client step 2
Jul 06 08:41:06 <server> sssd[sssd][61870]: Exiting the SSSD. Could not restart critical service [domain].
Jul 06 08:41:06 <server> sssd[pam][61873]: Shutting down
Jul 06 08:41:06 <server> sssd[nss][61872]: Shutting down
Jul 06 08:41:06 <server> systemd[1]: sssd.service: main process exited, code=exited, status=1/FAILURE
Jul 06 08:41:06 <server> systemd[1]: Unit sssd.service entered failed state.
Jul 06 08:41:06 <server> systemd[1]: sssd.service failed.
=======================================================
id 7ddaebb5bb885d8a3e23cc25d543402e9b42e8c8
reason: sssd_be killed by SIGSEGV
time: Tue 06 Jul 2021 12:52:19 AM CEST
cmdline: /usr/libexec/sssd/sssd_be --domain <domain> --uid 0 --gid 0 --logger=files
package: sssd-common-1.16.5-10.el7_9.8
uid: 0 (root)
count: 8
Directory: /var/spool/abrt/ccpp-2021-07-06-00:52:19-57875
Run 'abrt-cli report /var/spool/abrt/ccpp-2021-07-06-00:52:19-57875' for creating a case in Red Hat Customer Portal
The Autoreporting feature is disabled. Please consider enabling it by issuing
'abrt-auto-reporting enabled' as a user with root privileges.
Please pour in your suggestions.