Yes. Start kamailio and do some operations so you expose the leak.
Do a shm status dump:
* http://www.kamailio.org/docs/modules/5.1.x/modules/corex.html#corex.rpc.shm_...
Then you get details of each allocated chunks -- two pointers
* start of the memory chunk * start of the data inside the memory chunk
With gdb attach to any of the kamailio processes and print the content of the data pointer casted to xavp structure. Do it for several pointers so you see what is inside.