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    Hello,<br>
    <br>
    first, be sure you run latest version of branch 4.3, there was a fix
    for dialog since 4.3.2.<br>
    <br>
    If a process in shown to run recvfrom() that means it waits for
    kernel to pass a new upd packet to it -- recvfrom() is a function
    from standard lib c.<br>
    <br>
    Wireshark (like other sniffing tools) is capturing the network
    traffic before the kernel passes it to application layer. If
    wireshark see it, doesn't mean the application has received it from
    kernel, it can still be dropped by firewall or other kernel modules.<br>
    <br>
    You can add a xlog() at the beginning of request_route to see what
    requests are received by kamailio.<br>
    <br>
    Cheers,<br>
    Daniel<br>
    <br>
    <div class="moz-cite-prefix">On 27/09/15 15:52, José Seabra wrote:<br>
    </div>
    <blockquote
cite="mid:CAEVZRWs0vyZ6vK8d4BisC45TOdnJfjWa7pbntWYzW7KJiaygAw@mail.gmail.com"
      type="cite">
      <div dir="ltr">Hello Danel,
        <div>Thank you for your response,</div>
        <div><br>
        </div>
        <div>Well i don't have SELinux enabled and IPTables isn't
          running.</div>
        <div><br>
        </div>
        <div>About kamailio configuration, Pike module isn't also
          enabled, the only thing that i have enabled to limit the
          number of concurrent calls  is the dialog module, counting the
          number of active dialogs and reject next new invites only
           after it has reached the 10.000 simultaneous calls.</div>
        <div><br>
        </div>
        <div>The strange behavior is that kamailio only stop processing
          some sip messages like Byes and 200 Ok after more or less 40
          seconds after siptester start sending calls.<br>
        </div>
        <div><br>
        </div>
        <div>And i can see several cases in wireshark that kamailio
          receives BYES/200OK from interface B(Carriers interface) but
          it isn't forward to Interface A(customer interface), if i make
          for example 20cps i don't have this issue, all packets are
          handled correctly and there isn't 408 requests timeouts.</div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div>Best Regards</div>
        <div>José Seabra</div>
        <div><br>
        </div>
        <div> </div>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">2015-09-27 13:52 GMT+01:00
          Daniel-Constantin Mierla <span dir="ltr"><<a
              moz-do-not-send="true" href="mailto:miconda@gmail.com"
              target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:miconda@gmail.com">miconda@gmail.com</a></a>></span>:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div bgcolor="#FFFFFF" text="#000000"> The tmp variable is
              not intialized by default, so it can be anything therefore
              the out of bounds value. It used only when printing some
              errors, so it didn't get a proper value as no such error
              was printed for you case.<br>
              <br>
              The backtrace shows the process in in recvfrom(), so it
              waits for traffic from network. That is the case when the
              processing of former sip message was finished and now
              Kamailio waits to receive another one.<br>
              <br>
              If you run centos, be sure you don't have limits in
              selinux rules - better disable it completely and test
              again. Also, be sure you don't have limits in the
              firewall, especially contrack module and sip firewall
              modules in the kernel.<br>
              <br>
              In kamailio.cfg, if you have pike module, be sure you
              don't drop good packet with this module.<br>
              <br>
              Cheers,<br>
              Daniel
              <div>
                <div class="h5"><br>
                  <br>
                  <div>On 25/09/15 19:53, José Seabra wrote:<br>
                  </div>
                </div>
              </div>
              <blockquote type="cite">
                <div>
                  <div class="h5">
                    <div dir="ltr">
                      <div>Adding more information to my last email,
                        when kamailio starts receiving calls, after more
                        or less 40 seconds it stops processing some sip
                        messages.</div>
                      <div><br>
                      </div>
                      I'm using the kamailio version 4.3.2
                      <div><br>
                      </div>
                      <div>Best Regards</div>
                      <div><br>
                      </div>
                    </div>
                    <div class="gmail_extra"><br>
                      <div class="gmail_quote">2015-09-25 18:34
                        GMT+01:00 José Seabra <span dir="ltr"><<a
                            moz-do-not-send="true"
                            href="mailto:joseseabra4@gmail.com"
                            target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:joseseabra4@gmail.com">joseseabra4@gmail.com</a></a>></span>:<br>
                        <blockquote class="gmail_quote" style="margin:0
                          0 0 .8ex;border-left:1px #ccc
                          solid;padding-left:1ex">
                          <div dir="ltr">I have one kamailio server
                            listening in 2 network interfaces, kamailio
                            receives sip messages from interface A and
                            then send it to destine through interface B.
                            <div>When we start kamailio service then
                               run gdb for each kamailio network
                              interface process, execute the command "bt
                              full" the result is the following:</div>
                            <div><br>
                              <div><b>tmp = 0x5f801b994c4715bd
                                  <Address 0x5f801b994c4715bd out of
                                  bounds></b><br>
                              </div>
                              <div><br>
                              </div>
                              <div><br>
                              </div>
                              <div>
                                <div>interface - A</div>
                                <div><br>
                                </div>
                                <div> bt full</div>
                                <div>#0  0x00007fb01bfa40c3 in recvfrom
                                  () from /lib64/libc.so.6</div>
                                <div>No symbol table info available.</div>
                                <div>#1  0x000000000047f2ba in
                                  udp_rcv_loop () at udp_server.c:421</div>
                                <div>        len = 13</div>
                                <div>        buf = '\000' <repeats
                                  65535 times></div>
                                <div>        tmp = 0x5f801b994c4715bd
                                  <Address 0x5f801b994c4715bd out of
                                  bounds></div>
                                <div>        from = 0x7faf9bf38bb8</div>
                                <div>        fromlen = 16</div>
                                <div>        ri = {src_ip = {af =
                                  2309178400, len = 32765, u = {addrl =
                                  {5458819, 4284160}, addr32 = {5458819,
                                  0, 4284160, 0}, addr16 = {19331, 83,
                                  0, 0, 24320, 65, 0, 0}, </div>
                                <div>              addr =
                                  "\203KS\000\000\000\000\000\000_A\000\000\000\000"}},
                                  dst_ip = {af = 2, len = 4, u = {addrl
                                  = {80026686, 0}, addr32 = {80026686,
                                  0, 0, 0}, </div>
                                <div>              addr16 = {7230, 1221,
                                  0, 0, 0, 0, 0, 0}, addr =
                                  ">\034\305\004", '\000' <repeats
                                  11 times>}}, src_port = 55576,
                                  dst_port = 5060, proto_reserved1 = 0, </div>
                                <div>          proto_reserved2 = 0,
                                  src_su = {s = {sa_family = 32687,
                                  sa_data =
                                  "\000\000\200D\243\211\375\177\000\000\213\337D"},
                                  sin = {sin_family = 32687, sin_port =
                                  0, </div>
                                <div>              sin_addr = {s_addr =
                                  2309178496}, sin_zero =
                                  "\375\177\000\000\213\337D"}, sin6 =
                                  {sin6_family = 32687, sin6_port = 0,
                                  sin6_flowinfo = 2309178496, </div>
                                <div>              sin6_addr = {__in6_u
                                  = {__u6_addr8 =
                                  "\375\177\000\000\213\337D\000\000\000\000\000p",
                                  <incomplete sequence \372\233>,
                                  __u6_addr16 = {32765, 0, 57227, </div>
                                <div>                    68, 0, 0,
                                  21616, 39930}, __u6_addr32 = {32765,
                                  4513675, 0, 2616874096}}},
                                  sin6_scope_id = 32687}}, bind_address
                                  = 0x7faf9becd7d8, proto = 1 '\001'}</div>
                                <div>        __FUNCTION__ =
                                  "udp_rcv_loop"</div>
                                <div>#2  0x0000000000525eae in main_loop
                                  () at main.c:1573</div>
                                <div>        i = 0</div>
                                <div>        pid = 0</div>
                                <div>        si = 0x7faf9becd7d8</div>
                                <div>        si_desc = "udp receiver
                                  child=0 sock=<a moz-do-not-send="true"
                                    href="http://62.28.197.4:5060"
                                    target="_blank">62.28.197.4:5060</a>\000\000\000\000\000\000\001\000\000\000\000\000\000\000\260\244r\023n\000\000\000\071\263q\000\000\000\000\000\020\243q\000\000\000\000\000\b\000\000\000\001\000\000\000\260\373\371\233\257\177\000\000\220E\243\211\375\177\000\000|\351O\000\000\000\000\000\000\266\253\023\257\177\000\000\260\244r\023\257\177\000"</div>
                                <div>---Type <return> to continue,
                                  or q <return> to quit---</div>
                                <div>        nrprocs = 32</div>
                                <div>        __FUNCTION__ = "main_loop"</div>
                                <div>#3  0x000000000052c395 in main
                                  (argc=11, argv=0x7ffd89a34848) at
                                  main.c:2533</div>
                                <div>        cfg_stream = 0x2296010</div>
                                <div>        c = -1</div>
                                <div>        r = 0</div>
                                <div>        tmp = 0x7ffd89a35f61 ""</div>
                                <div>        tmp_len = 0</div>
                                <div>        port = 0</div>
                                <div>        proto = 32688</div>
                                <div>        options = 0x725010
                                  ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:"</div>
                                <div>        ret = -1</div>
                                <div>        seed = 1641321572</div>
                                <div>        rfd = 4</div>
                                <div>        debug_save = 0</div>
                                <div>        debug_flag = 0</div>
                                <div>        dont_fork_cnt = 0</div>
                                <div>        n_lst = 0x7ffd89a34710</div>
                                <div>        p = 0x7fb01bf4c646
                                  <intel_check_word+166>
                                  "H\205\300t\025\017\266P\003\017\266\312D9\371\017\204",
                                  <incomplete sequence \305></div>
                                <div>        __FUNCTION__ = "main"</div>
                                <div><br>
                                </div>
                                <div><br>
                                </div>
                                <div><br>
                                </div>
                                <div>interface B</div>
                                <div>bt full</div>
                                <div>#0  0x00007fb01bfa40c3 in recvfrom
                                  () from /lib64/libc.so.6</div>
                                <div>No symbol table info available.</div>
                                <div>#1  0x000000000047f2ba in
                                  udp_rcv_loop () at udp_server.c:421</div>
                                <div>        len = 45</div>
                                <div><br>
                                </div>
                                <div>        buf = '\000' <repeats
                                  65535 times></div>
                                <div>        tmp = 0x13cb2f24296000e9
                                  <Address 0x13cb2f24296000e9 out of
                                  bounds></div>
                                <div>        from = 0x7faf9bf38bb8</div>
                                <div>        fromlen = 16</div>
                                <div>        ri = {src_ip = {af =
                                  2309178400, len = 32765, u = {addrl =
                                  {5458819, 4284160}, addr32 = {5458819,
                                  0, 4284160, 0}, addr16 = {19331, 83,
                                  0, 0, 24320, 65, 0, 0}, addr =
                                  "\203KS\000\000\000\000\000\000_A\000\000\000\000"}}, </div>
                                <div>          dst_ip = {af = 2, len =
                                  4, u = {addrl = {2764381246, 0},
                                  addr32 = {2764381246, 0, 0, 0}, addr16
                                  = {7230, 42181, 0, 0, 0, 0, 0, 0},
                                  addr = ">\034Ť", '\000' <repeats
                                  11 times>}}, src_port = 56136,
                                  dst_port = 5060, </div>
                                <div>          proto_reserved1 = 0,
                                  proto_reserved2 = 0, src_su = {s =
                                  {sa_family = 32687, sa_data =
                                  "\000\000\200D\243\211\375\177\000\000\213\337D"},
                                  sin = {sin_family = 32687, sin_port =
                                  0, sin_addr = {s_addr = 2309178496}, </div>
                                <div>              sin_zero =
                                  "\375\177\000\000\213\337D"}, sin6 =
                                  {sin6_family = 32687, sin6_port = 0,
                                  sin6_flowinfo = 2309178496, sin6_addr
                                  = {__in6_u = {</div>
                                <div>                  __u6_addr8 =
                                  "\375\177\000\000\213\337D\000\000\000\000\000p",
                                  <incomplete sequence \372\233>,
                                  __u6_addr16 = {32765, 0, 57227, 68, 0,
                                  0, 21616, 39930}, __u6_addr32 =
                                  {32765, 4513675, 0, 2616874096}}}, </div>
                                <div>              sin6_scope_id =
                                  32687}}, bind_address =
                                  0x7faf9becda08, proto = 1 '\001'}</div>
                                <div>        __FUNCTION__ =
                                  "udp_rcv_loop"</div>
                                <div>#2  0x0000000000525eae in main_loop
                                  () at main.c:1573</div>
                                <div>---Type <return> to continue,
                                  or q <return> to quit---</div>
                                <div>        i = 0</div>
                                <div>        pid = 0</div>
                                <div>        si = 0x7faf9becda08</div>
                                <div>        si_desc = "udp receiver
                                  child=0 sock=<a moz-do-not-send="true"
                                    href="http://62.28.197.164:5060"
                                    target="_blank">62.28.197.164:5060</a>\000\000\000\000\001\000\000\000\000\000\000\000\260\244r\023n\000\000\000\071\263q\000\000\000\000\000\020\243q\000\000\000\000\000\b\000\000\000\001\000\000\000\260\373\371\233\257\177\000\000\220E\243\211\375\177\000\000|\351O\000\000\000\000\000\000\266\253\023\257\177\000\000\260\244r\023\257\177\000"</div>
                                <div>        nrprocs = 32</div>
                                <div>        __FUNCTION__ = "main_loop"</div>
                                <div>#3  0x000000000052c395 in main
                                  (argc=11, argv=0x7ffd89a34848) at
                                  main.c:2533</div>
                                <div>        cfg_stream = 0x2296010</div>
                                <div>        c = -1</div>
                                <div>        r = 0</div>
                                <div>        tmp = 0x7ffd89a35f61 ""</div>
                                <div>        tmp_len = 0</div>
                                <div>        port = 0</div>
                                <div>        proto = 32688</div>
                                <div>        options = 0x725010
                                  ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:"</div>
                                <div>---Type <return> to continue,
                                  or q <return> to quit---</div>
                                <div>        ret = -1</div>
                                <div>        seed = 1641321572</div>
                                <div>        rfd = 4</div>
                                <div>        debug_save = 0</div>
                                <div>        debug_flag = 0</div>
                                <div>        dont_fork_cnt = 0</div>
                                <div>        n_lst = 0x7ffd89a34710</div>
                                <div>        p = 0x7fb01bf4c646
                                  <intel_check_word+166>
                                  "H\205\300t\025\017\266P\003\017\266\312D9\371\017\204",
                                  <incomplete sequence \305></div>
                                <div>        __FUNCTION__ = "main"</div>
                                <div><br>
                                </div>
                                <div><br>
                                </div>
                                <div><br>
                                </div>
                                <div><br>
                                </div>
                                <div>[root@c4-srv1 kamailio]# kamctl
                                  stats shmem</div>
                                <div>shmem:fragments = 2552</div>
                                <div>shmem:free_size = 2082764040</div>
                                <div>shmem:max_used_size = 66449600</div>
                                <div>shmem:real_used_size = 64719608</div>
                                <div>shmem:total_size = 2147483648</div>
                                <div>shmem:used_size = 54355992</div>
                              </div>
                              <div><br>
                              </div>
                              <div>Can anyone explain the meaning of </div>
                              <div><b>tmp = 0x5f801b994c4715bd
                                  <Address 0x5f801b994c4715bd out of
                                  bounds></b></div>
                              <div><br>
                              </div>
                              <div>Best Regards</div>
                              <span><font color="#888888">
                                  <div>José Seabra<br clear="all">
                                    <div><br>
                                    </div>
                                  </div>
                                </font></span></div>
                          </div>
                        </blockquote>
                      </div>
                      <br>
                      <br clear="all">
                      <div><br>
                      </div>
                      -- <br>
                      <div>Cumprimentos
                        <div>José Seabra</div>
                      </div>
                    </div>
                    <br>
                    <fieldset></fieldset>
                    <br>
                  </div>
                </div>
                <pre>_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
<a moz-do-not-send="true" href="mailto:sr-users@lists.sip-router.org" target="_blank">sr-users@lists.sip-router.org</a>
<a moz-do-not-send="true" href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users" target="_blank">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><span class="HOEnZb"><font color="#888888">
</font></span></pre>
                <span class="HOEnZb"><font color="#888888"> </font></span></blockquote>
              <span class="HOEnZb"><font color="#888888"> <br>
                  <pre cols="72">-- 
Daniel-Constantin Mierla
<a moz-do-not-send="true" href="http://twitter.com/#%21/miconda" target="_blank">http://twitter.com/#!/miconda</a> - <a moz-do-not-send="true" href="http://www.linkedin.com/in/miconda" target="_blank">http://www.linkedin.com/in/miconda</a>
Book: SIP Routing With Kamailio - <a moz-do-not-send="true" href="http://www.asipto.com" target="_blank">http://www.asipto.com</a>
Kamailio Advanced Training, Sep 28-30, 2015, in Berlin - <a moz-do-not-send="true" href="http://asipto.com/u/kat" target="_blank">http://asipto.com/u/kat</a></pre>
                </font></span></div>
            <br>
            _______________________________________________<br>
            SIP Express Router (SER) and Kamailio (OpenSER) - sr-users
            mailing list<br>
            <a moz-do-not-send="true"
              href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a><br>
            <a moz-do-not-send="true"
              href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users"
              rel="noreferrer" target="_blank">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><br>
            <br>
          </blockquote>
        </div>
        <br>
      </div>
      <br clear="all">
      <div><br>
      </div>
      -- <br>
      <div class="gmail_signature">Cumprimentos
        <div>José Seabra</div>
      </div>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
Daniel-Constantin Mierla
<a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a>
Book: SIP Routing With Kamailio - <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a>
Kamailio Advanced Training, Sep 28-30, 2015, in Berlin - <a class="moz-txt-link-freetext" href="http://asipto.com/u/kat">http://asipto.com/u/kat</a></pre>
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