Ceph » RADOS

I am able to reproduce an issue after follow the steps

1) kill all ceph processes
2) Start ceph.mon currently mon would not have a connection with anyone
3) Now put a break point on accept_conn in gdb for ceph.mon and continue
4) From another terminal throw a cli command "ceph tell mon.a perf dump | grep msgr_active_connections"
5) Wait sometime on gdb prompt so that a client will send a stop request to mon and it will call dec
option for the connection
6) type c on gdb prompt to finish all accept_conn request once all request will complete the
high value will be print on the other terminal something like below
ceph tell mon.a perf dump | grep msgr_active_connections
"msgr_active_connections": 18446744073709551613,
"msgr_active_connections": 18446744073709551614,
"msgr_active_connections": 18446744073709551615,

The daemon is showing high value only while a daemon is getting an unregister_conn
request before completing accept_conn request successfully. As I put a break point
on accept_conn request and if client is not getting a response it is sending a disconnect
and the server daemon is trying to handle a unregister_conn request without checking
the connection was accepted or not so in that case it is easily reproducible.

I've seen this as far back as pacific (e.g. see the perf dump below.) Can we backport this please?

    "AsyncMessenger::Worker-1": {
        "msgr_recv_messages": 55616369430,
        "msgr_send_messages": 47821870033,
        "msgr_recv_bytes": 52943301798829,
        "msgr_send_bytes": 44484760296991,
        "msgr_created_connections": 1199096,
        "msgr_active_connections": 18446744073708857178,
        "msgr_running_total_time": 1439133.231844527,
        "msgr_running_send_time": 579385.165429560,
        "msgr_running_recv_time": 4353254.942779597,
        "msgr_running_fast_dispatch_time": 99387.256271816,
        "msgr_send_messages_queue_lat": {
            "avgcount": 47805865674,
            "sum": 365781017.221541607,
            "avgtime": 0.007651383
        },
        "msgr_handle_ack_lat": {
            "avgcount": 74599913403,
            "sum": 6636.247815068,
            "avgtime": 0.000000088
        }
    },