Hi! Started kamailio with "-m 100 -M 30". Thus I would suspect that every process needs 30MB, and one of the processes needs 30+100Mb as it allocates the shared memory. The further would conclude that the memory will be allocated only once during startup. Can this be somehow verified? Normal "ps" output shows that every process needs ~130MB virtual memory, but this is probably not what I am looking for. Thanks Klaus # ps aux PID %CPU %MEM VSZ RSS TTY STAT COMMAND 846 0.2 0.8 139732 4112 ? S kamailio -m 100 -M 30 847 0.0 0.2 139732 1188 ? S kamailio -m 100 -M 30 848 0.0 0.2 139732 1184 ? S kamailio -m 100 -M 30 849 0.0 0.2 139732 1184 ? S kamailio -m 100 -M 30 850 0.0 0.2 139732 1184 ? S kamailio -m 100 -M 30 851 0.0 0.2 139732 1220 ? S kamailio -m 100 -M 30 852 0.0 0.2 139732 1208 ? S kamailio -m 100 -M 30 853 0.0 0.2 139736 1032 ? S kamailio -m 100 -M 30 854 0.0 0.2 139732 1176 ? S kamailio -m 100 -M 30 855 0.0 0.2 139732 1392 ? S kamailio -m 100 -M 30 856 0.0 0.2 139732 1392 ? S kamailio -m 100 -M 30 857 0.0 0.2 139732 1392 ? S kamailio -m 100 -M 30 858 0.0 0.2 139732 1392 ? S kamailio -m 100 -M 30 859 0.0 0.2 139732 1396 ? S kamailio -m 100 -M 30