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<p>Hello,</p>
<p>how much shared memory did you configure for kamailio (the value
of -m parameter)? There are safety checks to ensure that there are
available 256 to 512KB of shm/kamailio process in order to have
safe ssl operations. If you don't allocate enough and you have a
high value for children global parameter, then you can run easily
into this constraint.</p>
<p>You can provide the output of:</p>
<p>kamctl ps</p>
<p>kamctl stats</p>
<p>if you want us to check if you allocated enough resources.<br>
</p>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 22/12/2016 08:26, raja raja wrote:<br>
</div>
<blockquote
cite="mid:CACm4Fpmc8TAP+iaEscAAgqhpgEGsf8YFz2dBzT8F_ZP_N9eaWA@mail.gmail.com"
type="cite">
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<div>
<div>
<div>
<div>
<div>
<div>Hi,<br>
</div>
shared memory not freed once TLS connection close
means shm available memory decreasing for new
connection that leads to the following error<br>
<b>tls: ssl bug #1491 workaround: not enough memory
for safe operation<br>
<br>
</b></div>
<div><b>TestCase:<br>
</b></div>
1. start kamailio<br>
</div>
2. use sample program to establish tls connection and
close imediately.<br>
</div>
3. Kamailio Log is<br>
</div>
For first TLS connection<br>
tls [tls_server.c:189]: tls_complete_init(): tls: enough
memory for safe operation: shm=63604096 threshold1=12058624<br>
tls [tls_server.c:649]: tls_h_tcpconn_clean(): tls
shm_available after shm_free: 63545192<br>
<br>
For second TLS connection<br>
tls [tls_server.c:189]: tls_complete_init(): tls: enough
memory for safe operation: shm=63545192 threshold1=12058624<br>
tls [tls_server.c:649]: tls_h_tcpconn_clean(): tls
shm_available after shm_free: 63489352<br>
<b><br>
</b></div>
<b>Memory Leak:</b><br>
<div>for tls connection connection<br>
</div>
<div>63604096 - 63545192 = 58904 bytes not freed.<br>
<br>
<div>for tls connection connection<br>
</div>
63545192 - 63489352 = 55840 bytes not freed.<br>
</div>
<div><br>
</div>
<div>I tested same scenario on kamailio - 4.2.4, 4.3.4 versions
result is same.<br>
<br>
</div>
<div>Could you please provide the fix?<br>
</div>
<div><br>
</div>
<div>Thanks & Regards,<br>
</div>
<div>Raja Chegondi.<br>
</div>
</div>
<br>
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</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a>
Kamailio World Conference - May 8-10, 2017 - <a class="moz-txt-link-abbreviated" href="http://www.kamailioworld.com">www.kamailioworld.com</a></pre>
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