<p>Looks like a buffer overflow somewhere.</p>
<p>Can you recompile with memory debugging on?</p>
<p>Details at:</p>
<ul>
<li><a href="http://www.kamailio.org/wiki/tutorials/troubleshooting/memory#memory_manager_debugging">http://www.kamailio.org/wiki/tutorials/troubleshooting/memory#memory_manager_debugging</a></li>
</ul>
<p>Set also mem_safety=0 in kamailio.cfg. Try to reproduce and look at the log messages to see if there are critical operations reported there.</p>
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