<p><a href="https://github.com/miconda" class="user-mention">@miconda</a>: You are right, the Via header was present as indicated in this backtrace (see <code>#10</code>). However, for some reason, the via parameter in #0 was NULL.</p>
<blockquote>
<p>Program terminated with signal 11, Segmentation fault.<br>
#0  0x00007fa8d159ac95 in th_get_via_cookie (msg=0x7ffdf612dc10, via=0x0) at th_msg.c:957<br>
957             for(p=via->param_lst; p; p=p->next)<br>
Missing separate debuginfos, use: debuginfo-install cyrus-sasl-lib-2.1.26-20.el7_2.x86_64 glibc-2.17-157.el7_3.1.x86_64 jansson-2.4-6.el7.x86_64 json-c-0.11-4.el7_0.x86_64 keyutils-libs-1.5.8-3.el7.x86_64 krb5-libs-1.14.1-27.el7_3.x86_64 libcom_err-1.42.9-9.el7.x86_64 libev-4.15-6.el7.x86_64 libselinux-2.5-6.el7.x86_64 nspr-4.11.0-1.el7_2.x86_64 nss-3.21.3-2.el7_3.x86_64 nss-softokn-freebl-3.16.2.3-14.4.el7.x86_64 nss-util-3.21.3-1.1.el7_3.x86_64 openldap-2.4.40-13.el7.x86_64 openssl-libs-1.0.1e-60.el7.x86_64 pcre-8.32-15.el7_2.1.x86_64 postgresql94-libs-9.4.10-1PGDG.rhel7.x86_64 zlib-1.2.7-17.el7.x86_64<br>
(gdb) bt<br>
#0  0x00007fa8d159ac95 in th_get_via_cookie (msg=0x7ffdf612dc10, via=0x0) at th_msg.c:957<br>
<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>  0x00007fa8d159b90c in th_get_cookie (msg=0x7ffdf612dc10, clen=0x7fa8d17aa628 <th_cookie_value+8>) at th_msg.c:1065<br>
<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>  0x00007fa8d15a3705 in th_msg_sent (data=0x7ffdf612e450) at topoh_mod.c:403<br>
<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>  0x00000000005e16dd in sr_event_exec (type=2, data=0x7ffdf612e450) at events.c:231<br>
<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>  0x00007fa8d8438662 in msg_send_buffer (dst=0x7fa8d4624650,<br>
buf=0x7fa8dd4cfc10 "SIP/2.0 487 Request Terminated\r\nFrom: "84471099984" sip:84471099984@192.168.51.1;tag=323189895\r\nTo: sip:841236404100@192.168.51.1:5060;tag=5761265b6273333e\r\nServer: VOS2009 V2.1.2.0\r\nCSeq: 143 INV"..., len=389, flags=0) at ../../forward.h:138<br>
<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>  0x00007fa8d843c675 in send_pr_buffer (rb=0x7fa8d4624600, buf=0x7fa8dd4cfc10, len=389) at t_funcs.c:70<br>
<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>  0x00007fa8d83e6f2b in relay_reply (t=0x7fa8d4624540, p_msg=0x7fa8dd4f0070, branch=1, msg_status=487, cancel_data=0x7ffdf612e8e0, do_put_on_wait=1) at t_reply.c:1943<br>
<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>  0x00007fa8d83ea3f8 in reply_received (p_msg=0x7fa8dd4f0070) at t_reply.c:2466<br>
<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>  0x000000000053620b in do_forward_reply (msg=0x7fa8dd4f0070, mode=0) at forward.c:747<br>
<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>  0x00000000005379c9 in forward_reply (msg=0x7fa8dd4f0070) at forward.c:849<br>
<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> 0x000000000059291c in receive_msg (<br>
buf=0xa12b00 <buf.6635> "SIP/2.0 487 Request Terminated\r\nVia: SIP/2.0/UDP 163.44.192.229;branch=z9hG4bK0a54.95248b9941e41f2ea14c3391d07c3615.1\r\nFrom: "84471099984" sip:84471099984@192.168.51.1;tag=323189895\r\nTo: <sip:841236"..., len=476, rcv_info=0x7ffdf612ed60) at receive.c:299<br>
<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> 0x00000000004bca5e in udp_rcv_loop () at udp_server.c:495<br>
<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> 0x0000000000544b3e in main_loop () at main.c:1614<br>
<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> 0x000000000054c08f in main (argc=5, argv=0x7ffdf612f278) at main.c:2631<br>
(gdb) p via<br>
$1 = (struct via_body *) 0x0<br>
(gdb)</p>
</blockquote>

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<script type="application/json" data-scope="inboxmarkup">{"api_version":"1.0","publisher":{"api_key":"05dde50f1d1a384dd78767c55493e4bb","name":"GitHub"},"entity":{"external_key":"github/kamailio/kamailio","title":"kamailio/kamailio","subtitle":"GitHub repository","main_image_url":"https://cloud.githubusercontent.com/assets/143418/17495839/a5054eac-5d88-11e6-95fc-7290892c7bb5.png","avatar_image_url":"https://cloud.githubusercontent.com/assets/143418/15842166/7c72db34-2c0b-11e6-9aed-b52498112777.png","action":{"name":"Open in GitHub","url":"https://github.com/kamailio/kamailio"}},"updates":{"snippets":[{"icon":"PERSON","message":"@qmphan in #952: @miconda: You are right, the Via header was present as indicated in this backtrace (see `#10`). However, for some reason, the via parameter in #0 was NULL.\r\n\r\n\u003e Program terminated with signal 11, Segmentation fault.\r\n\u003e #0  0x00007fa8d159ac95 in th_get_via_cookie (msg=0x7ffdf612dc10, via=0x0) at th_msg.c:957\r\n\u003e 957             for(p=via-\u003eparam_lst; p; p=p-\u003enext)\r\n\u003e Missing separate debuginfos, use: debuginfo-install cyrus-sasl-lib-2.1.26-20.el7_2.x86_64 glibc-2.17-157.el7_3.1.x86_64 jansson-2.4-6.el7.x86_64 json-c-0.11-4.el7_0.x86_64 keyutils-libs-1.5.8-3.el7.x86_64 krb5-libs-1.14.1-27.el7_3.x86_64 libcom_err-1.42.9-9.el7.x86_64 libev-4.15-6.el7.x86_64 libselinux-2.5-6.el7.x86_64 nspr-4.11.0-1.el7_2.x86_64 nss-3.21.3-2.el7_3.x86_64 nss-softokn-freebl-3.16.2.3-14.4.el7.x86_64 nss-util-3.21.3-1.1.el7_3.x86_64 openldap-2.4.40-13.el7.x86_64 openssl-libs-1.0.1e-60.el7.x86_64 pcre-8.32-15.el7_2.1.x86_64 postgresql94-libs-9.4.10-1PGDG.rhel7.x86_64 zlib-1.2.7-17.el7.x86_64\r\n\u003e (gdb) bt\r\n\u003e #0  0x00007fa8d159ac95 in th_get_via_cookie (msg=0x7ffdf612dc10, via=0x0) at th_msg.c:957\r\n\u003e #1  0x00007fa8d159b90c in th_get_cookie (msg=0x7ffdf612dc10, clen=0x7fa8d17aa628 \u003cth_cookie_value+8\u003e) at th_msg.c:1065\r\n\u003e #2  0x00007fa8d15a3705 in th_msg_sent (data=0x7ffdf612e450) at topoh_mod.c:403\r\n\u003e #3  0x00000000005e16dd in sr_event_exec (type=2, data=0x7ffdf612e450) at events.c:231\r\n\u003e #4  0x00007fa8d8438662 in msg_send_buffer (dst=0x7fa8d4624650,\r\n\u003e     buf=0x7fa8dd4cfc10 \"SIP/2.0 487 Request Terminated\\r\\nFrom: \\\"84471099984\\\" \u003csip:84471099984@192.168.51.1\u003e;tag=323189895\\r\\nTo: \u003csip:841236404100@192.168.51.1:5060\u003e;tag=5761265b6273333e\\r\\nServer: VOS2009 V2.1.2.0\\r\\nCSeq: 143 INV\"..., len=389, flags=0) at ../../forward.h:138\r\n\u003e #5  0x00007fa8d843c675 in send_pr_buffer (rb=0x7fa8d4624600, buf=0x7fa8dd4cfc10, len=389) at t_funcs.c:70\r\n\u003e #6  0x00007fa8d83e6f2b in relay_reply (t=0x7fa8d4624540, p_msg=0x7fa8dd4f0070, branch=1, msg_status=487, cancel_data=0x7ffdf612e8e0, do_put_on_wait=1) at t_reply.c:1943\r\n\u003e #7  0x00007fa8d83ea3f8 in reply_received (p_msg=0x7fa8dd4f0070) at t_reply.c:2466\r\n\u003e #8  0x000000000053620b in do_forward_reply (msg=0x7fa8dd4f0070, mode=0) at forward.c:747\r\n\u003e #9  0x00000000005379c9 in forward_reply (msg=0x7fa8dd4f0070) at forward.c:849\r\n\u003e #10 0x000000000059291c in receive_msg (\r\n\u003e     buf=0xa12b00 \u003cbuf.6635\u003e \"SIP/2.0 487 Request Terminated\\r\\nVia: SIP/2.0/UDP 163.44.192.229;branch=z9hG4bK0a54.95248b9941e41f2ea14c3391d07c3615.1\\r\\nFrom: \\\"84471099984\\\" \u003csip:84471099984@192.168.51.1\u003e;tag=323189895\\r\\nTo: \u003csip:841236\"..., len=476, rcv_info=0x7ffdf612ed60) at receive.c:299\r\n\u003e #11 0x00000000004bca5e in udp_rcv_loop () at udp_server.c:495\r\n\u003e #12 0x0000000000544b3e in main_loop () at main.c:1614\r\n\u003e #13 0x000000000054c08f in main (argc=5, argv=0x7ffdf612f278) at main.c:2631\r\n\u003e (gdb) p via\r\n\u003e $1 = (struct via_body *) 0x0\r\n\u003e (gdb)"}],"action":{"name":"View Pull Request","url":"https://github.com/kamailio/kamailio/pull/952#issuecomment-275628580"}}}</script>