<p></p>
<h3 dir="auto">Description</h3>
<p dir="auto">Topos still seems to break early-dialog UPDATEs in my configuration. This is on 5.6.0~rc0+bpo11.20220506004754.1 from 56-nightly which I believe includes <a class="commit-link" data-hovercard-type="commit" data-hovercard-url="https://github.com/kamailio/kamailio/commit/c309122864eaa2bfa58253290bed49084ccc9302/hovercard" href="https://github.com/kamailio/kamailio/commit/c309122864eaa2bfa58253290bed49084ccc9302"><tt>c309122</tt></a> and <a class="commit-link" data-hovercard-type="commit" data-hovercard-url="https://github.com/kamailio/kamailio/commit/ceb688b3d364bb7b8d9f52b7238d560cb4e30b3d/hovercard" href="https://github.com/kamailio/kamailio/commit/ceb688b3d364bb7b8d9f52b7238d560cb4e30b3d"><tt>ceb688b</tt></a>. I haven't tested rc1 yet (there are no debs at this time) but there doesn't seem to be any topos-related commits since rc0 either.</p>
<h3 dir="auto">Troubleshooting</h3>
<h4 dir="auto">SIP Traffic</h4>
<p dir="auto">Attaching pcaps from a lab environment to demonstrate the problem. One with topos on (failure), one with off (success). There were no other configuration changes between these tests.</p>
<h3 dir="auto">Possible Solutions</h3>
<p dir="auto">Only turning topos off seems to resolve this for me.</p>
<h3 dir="auto">Additional Information</h3>
<pre class="notranslate"><code class="notranslate">version: kamailio 5.6.0-rc0 (x86_64/linux) 
flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, 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_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED
ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: unknown 
compiled with gcc 10.2.1
</code></pre>
<ul dir="auto">
<li><strong>Operating System</strong>:</li>
</ul>
<pre class="notranslate"><code class="notranslate">Linux sbcprov0-stage-tis0-cn1 5.10.0-10-amd64 #1 SMP Debian 5.10.84-1 (2021-12-08) x86_64 GNU/Linux
</code></pre>
<p dir="auto"><a href="https://github.com/kamailio/kamailio/files/8704222/pcaps.tar.gz">pcaps.tar.gz</a></p>

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