<p>On a not really loaded kamailio (less than 50 users at the moment),<br>
I'm getting a core dump every few days. I've tried multiple verisons<br>
of Kamailio, 4.4.x , 4.3.x and also on 5.0.0-dev7 .</p>
<p>I can't reproduce it adhoc, but every few days it happens...</p>
<p>backtrace:</p>
<p>Version: version: kamailio 5.0.0-dev7 (x86_64/linux) 7360b0</p>
<p>[New LWP 29728]</p>
<p>[Thread debugging using libthread_db enabled]</p>
<p>Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".</p>
<p>Core was generated by `/usr/local/sbin/kamailio -P<br>
/var/run/kamailio.pid -f /usr/local/etc/kamailio//k'.</p>
<p>Program terminated with signal SIGSEGV, Segmentation fault.</p>
<p>#0  0x00007f92c5a0be98 in __dialog_sendpublish (dlg=0x7f92c0e3a6c0,<br>
type=64, _params=0x7f92c0423500 ) at pua_dialoginfo.c:264</p>
<p>264 uri = dlginfo->to_uri;</p>
<p>(gdb) backtrace</p>
<p>#0  0x00007f92c5a0be98 in __dialog_sendpublish (dlg=0x7f92c0e3a6c0,<br>
type=64, _params=0x7f92c0423500 ) at pua_dialoginfo.c:264</p>
<p><a href="https://github.com/kamailio/kamailio/issues/1" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/1" data-id="31891578" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#1</a>  0x00007f92c01e2563 in run_dlg_callbacks (type=64,<br>
dlg=0x7f92c0e3a6c0, req=0x7f92cc6d5db8, rpl=0x0, dir=1, dlg_data=0x0)<br>
at dlg_cb.c:256</p>
<p><a href="https://github.com/kamailio/kamailio/pull/2" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/2" data-id="41491271" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#2</a>  0x00007f92c01a92b1 in dlg_terminated (req=0x7f92cc6d5db8,<br>
dlg=0x7f92c0e3a6c0, dir=1) at dlg_handlers.c:366</p>
<p><a href="https://github.com/kamailio/kamailio/pull/3" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/3" data-id="48744343" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#3</a>  0x00007f92c01b610f in dlg_onroute (req=0x7f92cc6d5db8,<br>
route_params=0x7ffc7de27ba0, param=0x0) at dlg_handlers.c:1409</p>
<p><a href="https://github.com/kamailio/kamailio/pull/4" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/4" data-id="49856885" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#4</a>  0x00007f92c9292171 in run_rr_callbacks (req=0x7f92cc6d5db8,<br>
rr_param=0x7ffc7de27c20) at rr_cb.c:96</p>
<p><a href="https://github.com/kamailio/kamailio/issues/5" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/5" data-id="51480460" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#5</a>  0x00007f92c9287ac2 in after_loose (_m=0x7f92cc6d5db8, preloaded=0)<br>
at loose.c:928</p>
<p><a href="https://github.com/kamailio/kamailio/issues/6" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/6" data-id="51489870" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#6</a>  0x00007f92c9288168 in loose_route (_m=0x7f92cc6d5db8) at loose.c:962</p>
<p><a href="https://github.com/kamailio/kamailio/issues/7" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/7" data-id="51492477" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#7</a>  0x00007f92c928b7ee in w_loose_route (msg=0x7f92cc6d5db8, p1=0x0,<br>
p2=0x0) at rr_mod.c:266</p>
<p><a href="https://github.com/kamailio/kamailio/issues/8" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/8" data-id="51499233" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#8</a>  0x000000000041f5d9 in do_action (h=0x7ffc7de285b0,<br>
a=0x7f92cc5f7a70, msg=0x7f92cc6d5db8) at action.c:1054</p>
<p><a href="https://github.com/kamailio/kamailio/issues/9" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/9" data-id="51703057" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#9</a>  0x000000000042bcde in run_actions (h=0x7ffc7de285b0,<br>
a=0x7f92cc5f7a70, msg=0x7f92cc6d5db8) at action.c:1552</p>
<p><a href="https://github.com/kamailio/kamailio/pull/10" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/10" data-id="52436308" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#10</a> 0x000000000042c383 in run_actions_safe (h=0x7ffc7de29c60,<br>
a=0x7f92cc5f7a70, msg=0x7f92cc6d5db8) at action.c:1620</p>
<p><a href="https://github.com/kamailio/kamailio/issues/11" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/11" data-id="52569646" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#11</a> 0x000000000061fe86 in rval_get_int (h=0x7ffc7de29c60,<br>
msg=0x7f92cc6d5db8, i=0x7ffc7de28cc0, rv=0x7f92cc5f7bc8, cache=0x0) at<br>
rvalue.c:912</p>
<p><a href="https://github.com/kamailio/kamailio/pull/12" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/12" data-id="52744476" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#12</a> 0x00000000006243c3 in rval_expr_eval_int (h=0x7ffc7de29c60,<br>
msg=0x7f92cc6d5db8, res=0x7ffc7de28cc0, rve=0x7f92cc5f7bc0) at<br>
rvalue.c:1910</p>
<p><a href="https://github.com/kamailio/kamailio/pull/13" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/13" data-id="52784350" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#13</a> 0x000000000041f0d1 in do_action (h=0x7ffc7de29c60,<br>
a=0x7f92cc600430, msg=0x7f92cc6d5db8) at action.c:1030</p>
<p><a href="https://github.com/kamailio/kamailio/pull/14" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/14" data-id="52819753" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#14</a> 0x000000000042bcde in run_actions (h=0x7ffc7de29c60,<br>
a=0x7f92cc600430, msg=0x7f92cc6d5db8) at action.c:1552</p>
<p><a href="https://github.com/kamailio/kamailio/issues/15" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/15" data-id="52852064" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#15</a> 0x000000000041f548 in do_action (h=0x7ffc7de29c60,<br>
a=0x7f92cc6006d0, msg=0x7f92cc6d5db8) at action.c:1045</p>
<p><a href="https://github.com/kamailio/kamailio/pull/16" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/16" data-id="53297477" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#16</a> 0x000000000042bcde in run_actions (h=0x7ffc7de29c60,<br>
a=0x7f92cc6006d0, msg=0x7f92cc6d5db8) at action.c:1552</p>
<p><a href="https://github.com/kamailio/kamailio/pull/17" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/17" data-id="53387906" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#17</a> 0x000000000041c0fb in do_action (h=0x7ffc7de29c60,<br>
a=0x7f92cc545730, msg=0x7f92cc6d5db8) at action.c:678</p>
<p><a href="https://github.com/kamailio/kamailio/pull/18" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/18" data-id="53397137" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#18</a> 0x000000000042bcde in run_actions (h=0x7ffc7de29c60,<br>
a=0x7f92cc537760, msg=0x7f92cc6d5db8) at action.c:1552</p>
<p><a href="https://github.com/kamailio/kamailio/pull/19" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/19" data-id="53511603" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#19</a> 0x000000000042c44b in run_top_route (a=0x7f92cc537760,<br>
msg=0x7f92cc6d5db8, c=0x0) at action.c:1641</p>
<p><a href="https://github.com/kamailio/kamailio/pull/20" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/20" data-id="53562369" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#20</a> 0x00000000005726a2 in receive_msg (</p>
<pre><code>buf=0xa1c200 <buf> "BYE sip:echo@123.48.11.215:5070;transport=udp
</code></pre>
<p>SIP/2.0\r\nVia: SIP/2.0/UDP<br>
0.0.0.0:5060;rport;branch=z9hG4bKPj26b505ba-7ede-4198-a917-bde966b6d8b6\r\nMax-Forwards:<br>
69\r\nFrom: sip:192.168.60.1;tag=9a10d8ab-"..., len=462,<br>
rcv_info=0x7ffc7de29fb0) at receive.c:264</p>
<p><a href="https://github.com/kamailio/kamailio/issues/21" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/21" data-id="53562546" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#21</a> 0x000000000047bcdc in udp_rcv_loop () at udp_server.c:507</p>
<p><a href="https://github.com/kamailio/kamailio/pull/22" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/22" data-id="53569003" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#22</a> 0x0000000000509de1 in main_loop () at main.c:1618</p>
<p><a href="https://github.com/kamailio/kamailio/pull/23" class="issue-link js-issue-link" data-url="https://github.com/kamailio/kamailio/issues/23" data-id="53897061" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#23</a> 0x00000000005112de in main (argc=5, argv=0x7ffc7de2a478) at main.c:2639</p>
<p>(gdb)</p>
<p>info locals<br>
tag = {s = 0x0, len = 0}<br>
uri = {s = 0x0, len = 0}<br>
target = {s = 0x0, len = 0}<br>
dlginfo = 0x0<br>
<strong>FUNCTION</strong> = "__dialog_sendpublish"</p>
<p>(gdb) p dlginfo<br>
$1 = (struct dlginfo_cell *) 0x0<br>
(gdb) p *dlginfo<br>
Cannot access memory at address 0x0</p>

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