[SR-Users] possible bug with dialog module

currently using kamailio 3.0 with around 1000 users. Apr 21 10:19:57 kamvm-1 /usr/local/sbin/kamailio[28511]: ERROR: dialog [dlg_handlers.c:218]: bad sip message or missing Contact hdr Apr 21 10:19:57 kamvm-1 /usr/local/sbin/kamailio[28511]: ERROR: dialog [dlg_handlers.c:350]: could not add further info to the dialog Apr 21 10:19:57 kamvm-1 kernel: kamailio[28511]: segfault at 0000000000000088 rip 00002ab61b62779a rsp 00007fffec157440 error 4 Apr 21 10:19:57 kamvm-1 /usr/local/sbin/kamailio[28507]: ALERT: <core> [main.c:722]: child process 28511 exited by a signal 11 Apr 21 10:19:57 kamvm-1 /usr/local/sbin/kamailio[28507]: ALERT: <core> [main.c:725]: core was generated Kelvin Chua