I have 256 Mb RAM on the server, 39Mb used before starting zabbix server. There is also 496 Mb sqap space available.

After starting the server, in several minutes zabbix_server processes are being killed with OOM killer, zabbix uses all available memory and swap. I checked http://www.zabbix.com/requirements.php and it looks like my server should have sufficient resources.

My zabbix database is not large, the size of zabbix.db is 5576704 bytes.