[SR-Users] db_mode 3 in usrloc module

Hi, I have an older installation of Kamailio (3.1.1). It is configured with modparam("usrloc", "db_mode", 2) I tried to change this to modparam("usrloc", "db_mode", 3) to not have to restart kamailio when I change the alias table directly from SQL. But then kamailio shutsdown after about one second with this error: Mar 26 20:38:55 sip-3-1 /usr/local/sbin/kamailio[11510]: ERROR: <core> [db.c:408]: invalid version 0 for table trusted found, expected 5 (check table structure and table "version") Mar 26 20:38:55 sip-3-1 /usr/local/sbin/kamailio[11510]: ERROR: permissions [trusted.c:250]: error during table version check. Mar 26 20:38:55 sip-3-1 /usr/local/sbin/kamailio[11510]: ERROR: <core> [sr_module.c:832]: init_mod_child(): Error while initializing module permissions (/usr/local/lib/kamailio/modules_k/permissions.so) Mar 26 20:38:55 sip-3-1 /usr/local/sbin/kamailio[11510]: ERROR: <core> [pt.c:481]: ERROR: fork_tcp_process(): init_child failed for process 28, pid 11510, "tcp receiver child=6" Mar 26 20:38:55 sip-3-1 /usr/local/sbin/kamailio[11510]: ERROR: <core> [tcp_main.c:4811]: ERROR: tcp_main: fork failed: Success Mar 26 20:38:55 sip-3-1 /usr/local/sbin/kamailio[11512]: : <core> [pass_fd.c:293]: ERROR: receive_fd: EOF on 44 Mar 26 20:38:55 sip-3-1 /usr/local/sbin/kamailio[11482]: ALERT: <core> [main.c:738]: child process 11510 exited normally, status=255 Mar 26 20:38:55 sip-3-1 /usr/local/sbin/kamailio[11482]: INFO: <core> [main.c:756]: INFO: terminating due to SIGCHLD I have not made any changes to the permissions/trusted module, so I suspect it is some shared database conection problem. Is it a known bug in this version? I would prefer not to upgrade the installation and hopes one of you can point me to a patch I can backport. -- Morten Isaksen