<p></p>
<p>Did you load <code>tls</code> module before <code>http_async_client</code>? Also, this module has to be loaded before any other module using libcurl (see: <a href="https://www.kamailio.org/docs/modules/stable/modules/http_async_client.html#idm125" rel="nofollow">https://www.kamailio.org/docs/modules/stable/modules/http_async_client.html#idm125</a>)</p>
<p>For further troubleshooting, install the debug symbols packages for libcurl and libssl to get more details in the frames referencing them. Once installed, just grab again the <code>bt full</code> from all core files (no need to generate another crash).</p>

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