In SLES 15 package zabbix-server-pgsql-4.2.6-1.el15.x86_64.rpm, zabbix-server.service is missing postgresql.service dependency, which may cause postgresql.service shutdown before zabbix-server.service shutdown by systemd shutting down the system. As a result zabbix-server.service will hang indefinitely reporting "a stop job is running for Zabbix Server (no limit)", thus preventing system shutdown.