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I have been using the following version of kamailio</div>
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<span style="font-family: "Courier New", monospace; font-size: 9pt;">Version: kamailio 5.1.6 (x86_64/linux)</span><span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;"> Default config: /usr/local/etc/kamailio/kamailio.cfg</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;"> Default paths to modules: /usr/local/lib64/kamailio/modules</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;"> Compile flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC,
DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;"> MAX_RECV_BUFFER_SIZE=262144</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;"> MAX_URI_SIZE=1024</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;"> BUF_SIZE=65535</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;"> DEFAULT PKG_SIZE=8MB</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;"> DEFAULT SHM_SIZE=64MB</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;"> ADAPTIVE_WAIT_LOOPS=1024</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;"> TCP poll methods: poll, epoll_lt, epoll_et, sigio_rt, select</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;"> Source code revision ID: unknown</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;"> Compiled with: gcc 4.8.5</span><br>
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<span style="font-family: "Courier New", monospace; font-size: 9pt;"> Compiled on: 11:48:33 Oct 11 2018</span><br>
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<span>and I noticed today that the Kamailio service is crashing. </span></div>
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<span><span style="font-family: "Courier New", monospace; font-size: 9pt;">[root@kamailiostandby /]# gdb core.17805</span><span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-100.el7_4.1</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">Copyright (C) 2013 Free Software Foundation, Inc.</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html></span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">This is free software: you are free to change and redistribute it.</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">There is NO WARRANTY, to the extent permitted by law. Type "show copying"</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">and "show warranty" for details.</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">This GDB was configured as "x86_64-</span><span style="font-family: "Courier New", monospace; font-size: 9pt;">redhat</span><span style="font-family: "Courier New", monospace; font-size: 9pt;">-</span><span style="font-family: "Courier New", monospace; font-size: 9pt;">linux</span><span style="font-family: "Courier New", monospace; font-size: 9pt;">-gnu".</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">For bug reporting instructions, please see:</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;"><http://www.gnu.org/software/gdb/bugs/>...</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">[New LWP 17805]</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">Core was generated by `/usr/local/sbin/kamailio -P /run/kamailio/kamailio.pid -f /usr/local/SIP'.</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">Program terminated with signal 11, Segmentation fault.</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">#0 0x00007f636559e54b in ?? ()</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">"/core.17805" is a core file.</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">Please specify an executable to debug.</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">(gdb) list</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">No symbol table is loaded. Use the "file" command.</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">(gdb) bt</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">#0 0x00007f636559e54b in ?? ()</span><br>
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<div><span style="font-family: "Courier New", monospace; font-size: 9pt;">#1 0x00007f63a9571810 in ?? ()</span><br>
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<span style="font-family: "Courier New", monospace; font-size: 9pt;">#2 0x0000000000000000 in ?? ()</span><br>
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<p class="ecxMsoNormal">Regards</p>
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<p class="ecxMsoNormal"><a name="_MailAutoSig" target="_blank"><b><span style="font-size:8.0pt; font-family:"Verdana","sans-serif"; font-variant:small-caps; color:navy">Hamid R. Hashmi</span></b></a></p>
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