#### Reproduction

run this script simultaneously (from two console for example) ``` #!/usr/bin/perl $cmd = q(curl -X GET -H "Content-Type: application/json" -d '{"jsonrpc": "2.0", "method": "dialplan.reload", "params":[], "id": 1 }' http://IP:PORT/jsonrpc/); for ($i=0; $i<1000; $i++){ `$cmd`; } ```

#### Debugging Data ``` Program terminated with signal 11, Segmentation fault. #0 0x00007ffaa39e95f7 in add_rule2hash (rule=0x7ffa9fa05248, h_index=1) at dp_db.c:563 /home/snen/KamailioGitMyFork/src/modules/dialplan/dp_db.c:563:12474:beg:0x7ffaa39e95f7 (gdb) bt #0 0x00007ffaa39e95f7 in add_rule2hash (rule=0x7ffa9fa05248, h_index=1) at dp_db.c:563 #1 0x00007ffaa39e4831 in dp_load_db () at dp_db.c:305 #2 0x00007ffaa39ce914 in dialplan_rpc_reload (rpc=0x7ffa9f382a80 <func_param>, ctx=0x7ffa9f3829a0 <_jsonrpc_ctx_global>) at dialplan.c:610 #3 0x00007ffa9f16398f in jsonrpc_dispatch (msg=0x7ffd427ad880, s1=0x0, s2=0x0) at jsonrpcs_mod.c:1294 #4 0x0000000000461a5f in do_action (h=0x7ffd427ad7a0, a=0x7ffaa72987d8, msg=0x7ffd427ad880) at core/action.c:1067 #5 0x000000000046e23e in run_actions (h=0x7ffd427ad7a0, a=0x7ffaa72987d8, msg=0x7ffd427ad880) at core/action.c:1564 #6 0x00000000004619ce in do_action (h=0x7ffd427ad7a0, a=0x7ffaa729b140, msg=0x7ffd427ad880) at core/action.c:1058 #7 0x000000000046e23e in run_actions (h=0x7ffd427ad7a0, a=0x7ffaa729b140, msg=0x7ffd427ad880) at core/action.c:1564 #8 0x00007ffa9f38868c in xhttp_process_request (orig_msg=0x7ffaa72a6ed0, new_buf=0x7ffaa72c4420 "GET /jsonrpc/ HTTP/1.1\r\nVia: SIP/2.0/TCP 192.168.10.190:48542\r\nUser-Agent: curl/7.29.0\r\nHost: 192.168.10.190:5071\r\nAccept: */*\r\nContent-Type: application/json\r\nContent-Length: 71\r\n\r\n{"jsonrpc": "2.0","..., new_len=253) at xhttp_mod.c:296 #9 0x00007ffa9f389dcf in xhttp_handler (msg=0x7ffaa72a6ed0) at xhttp_mod.c:383 #10 0x00000000004ff30c in nonsip_msg_run_hooks (msg=0x7ffaa72a6ed0) at core/nonsip_hooks.c:112 #11 0x000000000057b373 in receive_msg ( buf=0x7ffaa02ec618 "GET /jsonrpc/ HTTP/1.1\r\nUser-Agent: curl/7.29.0\r\nHost: 192.168.10.190:5071\r\nAccept: */*\r\nContent-Type: application/json\r\nContent-Length: 71\r\n\r\n{"jsonrpc": "2.0", "method": "dialplan.reload", "params":"..., len=214, rcv_info=0x7ffaa02ec338) at core/receive.c:270 #12 0x0000000000635eb5 in receive_tcp_msg ( tcpbuf=0x7ffaa02ec618 "GET /jsonrpc/ HTTP/1.1\r\nUser-Agent: curl/7.29.0\r\nHost: 192.168.10.190:5071\r\nAccept: */*\r\nContent-Type: application/json\r\nContent-Length: 71\r\n\r\n{"jsonrpc": "2.0", "method": "dialplan.reload", "params":"..., len=214, rcv_info=0x7ffaa02ec338, con=0x7ffaa02ec320) at core/tcp_read.c:1399 #13 0x0000000000638372 in tcp_read_req (con=0x7ffaa02ec320, bytes_read=0x7ffd427ae65c, read_flags=0x7ffd427ae658) at core/tcp_read.c:1631 #14 0x000000000063b115 in handle_io (fm=0x7ffaa7302d78, events=1, idx=-1) at core/tcp_read.c:1804 #15 0x00000000006299b6 in io_wait_loop_epoll (h=0xae9060 <io_w>, t=2, repeat=0) at core/io_wait.h:1062 #16 0x000000000063d172 in tcp_receive_loop (unix_sock=16) at core/tcp_read.c:1974 #17 0x00000000004dcaf9 in tcp_init_children () at core/tcp_main.c:5086 #18 0x00000000004266c4 in main_loop () at main.c:1750 #19 0x000000000042d14b in main (argc=13, argv=0x7ffd427aedc8) at main.c:2737 (gdb) l 558 new_id = 0; 559 560 /*search for the corresponding dpl_id*/ 561 for(crt_idp = last_idp =rules_hash[h_index]; crt_idp!= NULL; 562 last_idp = crt_idp, crt_idp = crt_idp->next) 563 if(crt_idp->dp_id == rule->dpid) 564 break; 565 566 /*didn't find a dpl_id*/ 567 if(!crt_idp){ (gdb) p crt_idp->dp_id Cannot access memory at address 0x7ffa9f002429 (gdb)

```

### Additional Information

``` kamailio 5.3.0-dev3 (x86_64/linux) d726bd ```