[sr-dev] [kamailio/kamailio] Random segfault or general protection crash on siptrace.so module (#2718)

[Daniel-Constantin Mierla]

Probably the field `dst->send_sock` is no longer valid, it can confirmed by getting:

```
frame 0
p *dst->send_sock
```

If the address is invalid, can be the case that the SIP transaction is destroyed at same time due to a race.

I see you use dialog mode tracing - `d` mode:

```
        # Only start sip_trace on initial INVITE
        sip_trace("HEP_URL","$ci-MY_IP","d");
```

Which was not in 5.2.x, so it might be a bug of that feature. I haven't implemented it, so I do not have proper insights at this moment, it will take me some time to get into it. Meanwhile, if you still face crashes, maybe you can switch to tracing using:

```
modparam("siptrace", "trace_mode", 1)
```

and:

```
event_route[siptrace:msg] {
    if(!is_method("INVITE|ACK|BYE|CANCEL|PRACK|UPDATE")) {
        drop();
    }
}
```

as I understood that you want to do sip trace for traffic related to calls.

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/kamailio/kamailio/issues/2718#issuecomment-857482167
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kamailio.org/pipermail/sr-dev/attachments/20210609/2c933fd1/attachment.htm>