Comment # 9 on bug 1131686 from Jean-Fran�ois Juneau

Same here, could not log in to the Active Directory domain from my openSUSE
Leap 15 laptop this morning because the SSSD service was unable to start
(reverting libldb1 to 1.2.3-lp150.2.3.1 fixes the issue):

2019-04-06T09:49:44.913043-04:00 lnxjfjuneau sssd[1235]: ldb: module version
mismatch in ../source4/dsdb/samdb/ldb_modules/acl.c : ldb_version=1.2.4
module_version=1.2.3
2019-04-06T09:49:44.913378-04:00 lnxjfjuneau sssd[1235]: ldb: failed to
initialise module /usr/lib64/ldb/samba/acl.so : Unavailable
2019-04-06T09:49:44.916528-04:00 lnxjfjuneau sssd[1235]: ldb: failed to
initialise module /usr/lib64/ldb/samba : Unavailable
2019-04-06T09:49:44.918134-04:00 lnxjfjuneau sssd: SSSD couldn't load the
configuration database [5]: Input/output error.
2019-04-06T09:49:45.049363-04:00 lnxjfjuneau systemd[1]: sssd.service: Main
process exited, code=exited, status=4/NOPERMISSION
2019-04-06T09:49:45.050145-04:00 lnxjfjuneau systemd[1]: sssd.service: Unit
entered failed state.
2019-04-06T09:49:45.050321-04:00 lnxjfjuneau systemd[1]: sssd.service: Failed
with result 'exit-code'.