Hi, I'm hoping someone can guide me in the right direction.

In kamailio 5.2.1 I'm getting the following memory errors after a while (hours or days) of sending messages with jsonrpc. Restarting kamailio clears them for a while. Any suggestions on what I should change, or how to better identify the issue?

24(6177) ERROR: <core> [core/mem/q_malloc.c:291]: qm_find_free(): qm_find_free(0x7f1cbe6fd000, 5712); Free fragment not found!
24(6177) ERROR: <core> [core/mem/q_malloc.c:425]: qm_malloc(): qm_malloc(0x7f1cbe6fd000, 5712) called from tm: h_table.c: build_cell(339), module: tm; Free fragment not found!
24(6177) ERROR: tm [uac.c:422]: t_uac_prepare(): short of cell shmem
24(6177) ERROR: pua [send_publish.c:700]: send_publish(): in t_request tm module function
24(6177) ERROR: pua_rpc [pua_rpc.c:280]: pua_rpc_publish_mode(): pua send_publish failed

I have these buffer values in the config file
tcp_rd_buf_size=65536
pv_buffer_size=32768

and I'm running kamailio with these memory options "-m 1024 -M 16"

The jsonrpc message I'm sending look like this
{
"jsonrpc": "2.0", 
"method": "pua.publish", 
"params": [
"sip:172.1.1.3:5060;transport=tcp", 
"300", 
"reg", 
"application/reginfo+xml", 
".", 
".", 
".", 
".",
"<?xml version='1.0' ?>
<reginfo state='partial' version='0' xmlns='urn:ietf:params:xml:ns:reginfo' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'>
    <registration aor='sip:55555@uw.edu' id='a19685' state='active'>
    <contact duration-registered='906' event='registered' id='c19685--1732979172--1829864152-2' q='1.0' state='active'>
        <uri>sips:55555@172.1.2.4:62270;transport=tls;avaya-sc-enabled</uri>
        <elin></elin>
    </contact>
    </registration>
</reginfo>
"
], 
"id": 1
}

Thanks,
-Ben