Thanks for testing and the feedback!

Check also if this one can affect you:

  * https://github.com/kamailio/kamailio/issues/2224#issuecomment-602730307

I just backported all of them to 5.3, so if you want to test, you can use directly the latest branch 5.3.

Cheers,
Daniel

On 26.03.20 13:20, Virgílio Cunha wrote:
Hello Daniel,

I followed your recommendation and upgraded to kamailio-5.3.3 but the problem remains with this version.
So I applied this patch: https://github.com/kamailio/kamailio/commit/21bdbff049571ca22f1205a041c8b1162005d319 and I run the tests again. 
After applying the patch, I was no longer able to replicate the problem :)

Thank you for your great support.

Best Regards,
Virgílio Cunha

Em qua., 18 de mar. de 2020 às 18:22, Virgílio Cunha <virgilio18vsc@gmail.com> escreveu:
Hi,

Sorry for using this topic for this question, but where can I find Kamailio's release policy? 
I needed to know how long the kamailio 5.3.x branch will maintain its support.

Best Regards,
Virgílio Cunha

Em ter., 17 de mar. de 2020 às 11:03, Daniel-Constantin Mierla <miconda@gmail.com> escreveu:

Hello,

if it is a runtime issue, then it is better to upgrade to a supported release series and try to reproduce it.

Looking at startup/shutdown code is easier than the rest used during runtime by a module, but it is not the case here. So we may waste a lot of time to dig into it and discover it was fixed or the code in an older release was refactored not matching any longer what is now in stable releases.

Cheers,
Daniel

On 17.03.20 11:35, Virgílio Cunha wrote:
Hi,

The problem does not just occur when kamailio is restarted. The restart was the way I found to reproduce the problem, because when a proxy is restarted, there is more traffic from DMQ messages, so the problem is more likely to occur.

The full backtrace is following:

GNU gdb (GDB) Red Hat Enterprise Linux (7.2-92.el6)
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /opt/ptin/kamailio-ksipadp/bin/ksipadp-proxy...Reading symbols from /usr/lib/debug/usr/sbin/kamailio.debug...done.
done.
[New Thread 506]
Reading symbols from /lib64/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libdl.so.2
Reading symbols from /lib64/libresolv.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libresolv.so.2
Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libc.so.6
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
Reading symbols from /usr/lib64/kamailio/modules/db_postgres.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/db_postgres.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/db_postgres.so
Reading symbols from /usr/lib64/libpq.so.5...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libpq.so.5
Reading symbols from /usr/lib64/kamailio/libsrdb2.so.1...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/libsrdb2.so.1.0.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/libsrdb2.so.1
Reading symbols from /usr/lib64/kamailio/libsrdb1.so.1...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/libsrdb1.so.1.0.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/libsrdb1.so.1
Reading symbols from /usr/lib64/libssl.so.10...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libssl.so.10
Reading symbols from /usr/lib64/libcrypto.so.10...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libcrypto.so.10
Reading symbols from /lib64/libgssapi_krb5.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libgssapi_krb5.so.2
Reading symbols from /lib64/libldap_r-2.4.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libldap_r-2.4.so.2
Reading symbols from /lib64/libpthread.so.0...(no debugging symbols found)...done.
[Thread debugging using libthread_db enabled]
Loaded symbols for /lib64/libpthread.so.0
Reading symbols from /lib64/libkrb5.so.3...(no debugging symbols found)...done.
Loaded symbols for /lib64/libkrb5.so.3
Reading symbols from /lib64/libcom_err.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libcom_err.so.2
Reading symbols from /lib64/libk5crypto.so.3...(no debugging symbols found)...done.
Loaded symbols for /lib64/libk5crypto.so.3
Reading symbols from /lib64/libz.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libz.so.1
Reading symbols from /lib64/libkrb5support.so.0...(no debugging symbols found)...done.
Loaded symbols for /lib64/libkrb5support.so.0
Reading symbols from /lib64/libkeyutils.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libkeyutils.so.1
Reading symbols from /lib64/liblber-2.4.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/liblber-2.4.so.2
Reading symbols from /usr/lib64/libsasl2.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libsasl2.so.2
Reading symbols from /usr/lib64/libssl3.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libssl3.so
Reading symbols from /usr/lib64/libsmime3.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libsmime3.so
Reading symbols from /usr/lib64/libnss3.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libnss3.so
Reading symbols from /usr/lib64/libnssutil3.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libnssutil3.so
Reading symbols from /lib64/libplds4.so...(no debugging symbols found)...done.
Loaded symbols for /lib64/libplds4.so
Reading symbols from /lib64/libplc4.so...(no debugging symbols found)...done.
Loaded symbols for /lib64/libplc4.so
Reading symbols from /lib64/libnspr4.so...(no debugging symbols found)...done.
Loaded symbols for /lib64/libnspr4.so
Reading symbols from /lib64/libselinux.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libselinux.so.1
Reading symbols from /lib64/libcrypt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libcrypt.so.1
Reading symbols from /lib64/librt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/librt.so.1
Reading symbols from /lib64/libfreebl3.so...(no debugging symbols found)...done.
Loaded symbols for /lib64/libfreebl3.so
Reading symbols from /usr/lib64/kamailio/modules/ctl.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/ctl.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/ctl.so
Reading symbols from /lib64/libnss_files.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libnss_files.so.2
Reading symbols from /usr/lib64/kamailio/modules/kex.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/kex.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/kex.so
Reading symbols from /usr/lib64/kamailio/libsrutils.so.1...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/libsrutils.so.1.0.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/libsrutils.so.1
Reading symbols from /lib64/libm.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libm.so.6
Reading symbols from /usr/lib64/kamailio/modules/tm.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/tm.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/tm.so
Reading symbols from /usr/lib64/kamailio/modules/tmx.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/tmx.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/tmx.so
Reading symbols from /usr/lib64/kamailio/modules/corex.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/corex.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/corex.so
Reading symbols from /usr/lib64/kamailio/modules/cfg_rpc.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/cfg_rpc.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/cfg_rpc.so
Reading symbols from /usr/lib64/kamailio/modules/sl.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/sl.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/sl.so
Reading symbols from /usr/lib64/kamailio/modules/rr.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/rr.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/rr.so
Reading symbols from /usr/lib64/kamailio/modules/maxfwd.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/maxfwd.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/maxfwd.so
Reading symbols from /usr/lib64/kamailio/modules/siputils.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/siputils.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/siputils.so
Reading symbols from /usr/lib64/kamailio/modules/sanity.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/sanity.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/sanity.so
Reading symbols from /usr/lib64/kamailio/modules/textops.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/textops.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/textops.so
Reading symbols from /usr/lib64/kamailio/modules/textopsx.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/textopsx.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/textopsx.so
Reading symbols from /usr/lib64/kamailio/modules/dmq.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/dmq.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/dmq.so
Reading symbols from /usr/lib64/kamailio/modules/htable.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/htable.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/htable.so
Reading symbols from /usr/lib64/kamailio/modules/pv.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/pv.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/pv.so
Reading symbols from /usr/lib64/kamailio/modules/xlog.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/xlog.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/xlog.so
Reading symbols from /usr/lib64/kamailio/modules/jsonrpcs.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/jsonrpcs.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/jsonrpcs.so
Reading symbols from /usr/lib64/kamailio/modules/uac.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/uac.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/uac.so
Reading symbols from /usr/lib64/kamailio/modules/uac_redirect.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/uac_redirect.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/uac_redirect.so
Reading symbols from /usr/lib64/kamailio/modules/db_text.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/db_text.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/db_text.so
Reading symbols from /usr/lib64/kamailio/modules/dispatcher.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/dispatcher.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/dispatcher.so
Reading symbols from /usr/lib64/kamailio/modules/sqlops.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/sqlops.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/sqlops.so
Reading symbols from /usr/lib64/kamailio/modules/regex.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/regex.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/regex.so
Reading symbols from /lib64/libpcre.so.0...(no debugging symbols found)...done.
Loaded symbols for /lib64/libpcre.so.0
Reading symbols from /usr/lib64/kamailio/modules/permissions.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/permissions.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/permissions.so
Reading symbols from /usr/lib64/kamailio/modules/dialplan.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/dialplan.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/dialplan.so
Reading symbols from /usr/lib64/kamailio/modules/mtree.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/mtree.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/mtree.so
Reading symbols from /usr/lib64/kamailio/modules/cfgutils.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/cfgutils.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/cfgutils.so
Reading symbols from /usr/lib64/kamailio/modules/statsd.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/statsd.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/statsd.so
Reading symbols from /usr/lib64/kamailio/modules/app_lua.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/app_lua.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/app_lua.so
Reading symbols from /usr/lib64/liblua-5.1.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/liblua-5.1.so
Reading symbols from /usr/lib64/kamailio/modules/rtimer.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/rtimer.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/rtimer.so
Reading symbols from /usr/lib64/kamailio/modules/mqueue.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/mqueue.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/mqueue.so
Reading symbols from /usr/lib64/kamailio/modules/auth.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/auth.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/auth.so
Reading symbols from /usr/lib64/kamailio/modules/usrloc.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/usrloc.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/usrloc.so
Reading symbols from /usr/lib64/kamailio/modules/registrar.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/registrar.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/registrar.so
Reading symbols from /usr/lib64/kamailio/modules/dmq_usrloc.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/dmq_usrloc.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/dmq_usrloc.so
Reading symbols from /usr/lib64/kamailio/modules/xhttp.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/xhttp.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/xhttp.so
Reading symbols from /usr/lib64/kamailio/modules/exec.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/exec.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/exec.so
Reading symbols from /usr/lib64/kamailio/modules/http_client.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/http_client.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/http_client.so
Reading symbols from /usr/lib64/libxml2.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libxml2.so.2
Reading symbols from /usr/lib64/libcurl.so.4...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libcurl.so.4
Reading symbols from /lib64/libidn.so.11...(no debugging symbols found)...done.
Loaded symbols for /lib64/libidn.so.11
Reading symbols from /lib64/libldap-2.4.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libldap-2.4.so.2
Reading symbols from /usr/lib64/libssh2.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libssh2.so.1
Reading symbols from /usr/lib64/kamailio/modules/json.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/json.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/json.so
Reading symbols from /lib64/libjson-c.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libjson-c.so.2
Reading symbols from /usr/lib64/kamailio/modules/ipops.so...Reading symbols from /usr/lib/debug/usr/lib64/kamailio/modules/ipops.so.debug...done.
done.
Loaded symbols for /usr/lib64/kamailio/modules/ipops.so
Reading symbols from /lib64/libnss_dns.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libnss_dns.so.2
Core was generated by `/opt/ptin/kamailio-ksipadp/bin/ksipadp-proxy -f /opt/ptin/kamailio-ksipadp/prox'.
Program terminated with signal 11, Segmentation fault.
#0  0x00007fefe58ea7c4 in atomic_get (v=0x0) at ../../core/atomic/atomic_common.h:66
66              return atomic_get_int(&(v->val));
Missing separate debuginfos, use: debuginfo-install kamailio-ksipadp-2.8.0-1.ptin.el6.x86_64
(gdb) bt full
#0  0x00007fefe58ea7c4 in atomic_get (v=0x0) at ../../core/atomic/atomic_common.h:66
No locals.
#1  0x00007fefe58ee246 in job_queue_size (queue=0x0) at worker.c:254
No locals.
#2  0x00007fefe58ed920 in add_dmq_job (msg=0x7ff028b453f8, peer=0x7fefebcc4df8) at worker.c:184
        i = 1
        found_available = 0
        new_job = {f = 0x7fefe2613797 <usrloc_dmq_handle_msg>, msg = 0x7fefebce67c8, orig_peer = 0x7fefebcc4df8, next = 0x0, prev = 0x0}
        worker = 0x7fefe7a1d890
        cloned_msg = 0x7fefebce67c8
        cloned_msg_len = 3888
        __FUNCTION__ = "add_dmq_job"
#3  0x00007fefe58dfec1 in dmq_handle_message (msg=0x7ff028b453f8, str1=0x0, str2=0x0) at message.c:66
        peer = 0x7fefebcc4df8
        __FUNCTION__ = "dmq_handle_message"
#4  0x0000000000433729 in do_action (h=0x7ffc89e35670, a=0x7ff0285a9340, msg=0x7ff028b453f8) at core/action.c:1054
        ret = -5
        v = 1
        dst = {send_sock = 0x7ff0285a8810, to = {s = {sa_family = 21376, sa_data = "\343\211\374\177\000\000\370S\264(\360\177\000"}, sin = {
              sin_family = 21376, sin_port = 35299, sin_addr = {s_addr = 32764}, sin_zero = "\370S\264(\360\177\000"}, sin6 = {sin6_family = 21376,
              sin6_port = 35299, sin6_flowinfo = 32764, sin6_addr = {__in6_u = {__u6_addr8 = "\370S\264(\360\177\000\000pV\343\211\374\177\000",
                  __u6_addr16 = {21496, 10420, 32752, 0, 22128, 35299, 32764, 0}, __u6_addr32 = {682906616, 32752, 2313377392, 32764}}},
              sin6_scope_id = 1}}, id = 32764, proto = 0 '\000', send_flags = {f = 0, blst_imask = 0}}
        tmp = 0x389c422190 ""
        new_uri = 0x7c00000000 <Address 0x7c00000000 out of bounds>
        end = 0x6e00000077 <Address 0x6e00000077 out of bounds>
        crt = 0x389c98e120 ""
        cmd = 0x7ff0283219b0
        len = 0
        user = 0
        uri = {user = {s = 0x7ffc89e34a10 "@K\343\211\374\177", len = 4459394}, passwd = {s = 0x7ffc89e34e80 "\356Q\343\211\374\177",
            len = 682906616}, host = {s = 0x7ff0285a9020 "\177\001", len = -1981589904}, port = {s = 0x0, len = 1}, params = {
            s = 0x7ff028b453f8 "\017", len = 295169284}, sip_params = {s = 0x32 <Address 0x32 out of bounds>, len = 1073741824}, headers = {
            s = 0x2000000 <Address 0x2000000 out of bounds>, len = 4289104}, port_no = 60676, proto = 5047, type = 2312043322, flags = 2168712452,
          transport = {s = 0x0, len = -1675583518}, ttl = {s = 0x89e34e90 <Address 0x89e34e90 out of bounds>, len = 35715777}, user_param = {
            s = 0xffffffff0000003c <Address 0xffffffff0000003c out of bounds>, len = -1671419584}, maddr = {s = 0x0, len = -1981592704}, method = {
            s = 0x389c603c48 "", len = -1671391960}, lr = {s = 0x0, len = -1981592544}, r2 = {s = 0x1dde9a0 " 9\336\001", len = 0}, gr = {
            s = 0x4 <Address 0x4 out of bounds>, len = 2479}, transport_val = {s = 0x389c422190 "", len = 1}, ttl_val = {
            s = 0x7ffc89e34b40 "pM\343\211\374\177", len = 5683491}, user_param_val = {s = 0x40e7e8 "\370\377\377\377\377\377\377\377@ݘ\234\070",
            len = -1671362728}, maddr_val = {s = 0x404130 "", len = 0}, method_val = {s = 0x1000003b4 <Address 0x1000003b4 out of bounds>, len = 0},
          lr_val = {s = 0x7fefe7374b9a "%x%c%x%c", len = -1673386776}, r2_val = {s = 0x7ffc89e34bd0 "", len = -1981592584}, gr_val = {
---Type <return> to continue, or q <return> to quit---
            s = 0x389c422190 "", len = 0}}
        next_hop = {user = {s = 0x1 <Address 0x1 out of bounds>, len = 40}, passwd = {s = 0x0, len = -1407107317}, host = {
            s = 0x2000000 <Address 0x2000000 out of bounds>, len = 31398688}, port = {s = 0x1dde9a0 " 9\336\001", len = 31320480}, params = {
            s = 0x7ffc89e34c20 "", len = -1981593152}, sip_params = {s = 0x7ffc89e34910 "\200N\343\211\374\177", len = 682906616}, headers = {
            s = 0x32 <Address 0x32 out of bounds>, len = 1073741824}, port_no = 0, proto = 512, type = ERROR_URI_T, flags = 4289104, transport = {
            s = 0x7ffc89e34900 "\020J\343\211\374\177", len = 4457737}, ttl = {s = 0x7ffc89e348f0 "", len = -1981593520}, user_param = {
            s = 0x7ffc89e34858 "\r", len = -1981593264}, maddr = {s = 0x7ffc89e34870 "", len = -1981593456}, method = {s = 0x7ffc89e348b0 "\r",
            len = -1981593392}, lr = {s = 0x8cd2d0 <Address 0x8cd2d0 out of bounds>, len = 13}, r2 = {
            s = 0x10100000002 <Address 0x10100000002 out of bounds>, len = -1}, gr = {s = 0x0, len = 0}, transport_val = {s = 0x0, len = 682906616},
          ttl_val = {s = 0x7ff0285a9020 "\177\001", len = -1981593296}, user_param_val = {s = 0x7ffc89e34fa0 "\001\200\255\373\374\177", len = 0},
          maddr_val = {s = 0x10000000d <Address 0x10000000d out of bounds>, len = -1981591296}, method_val = {
            s = 0x7fef00000000 <Address 0x7fef00000000 out of bounds>, len = -1671151657}, lr_val = {s = 0x7fefe7374ba2 "", len = 682906616},
          r2_val = {s = 0x32 <Address 0x32 out of bounds>, len = 1073741824}, gr_val = {s = 0x2000000 <Address 0x2000000 out of bounds>,
            len = 4289104}}
        u = 0x389c4224e8
        port = 0
        dst_host = 0x89e34bd0
        i = 32764
        flags = 52
        avp = 0x189e35040
        st = {flags = 2313374752, id = 32764, name = {n = -1981593512, s = {s = 0x7ffc89e34858 "\r", len = -1981593152}, re = 0x7ffc89e34858},
          avp = 0x7ffc89e347a0}
        sct = 0x0
        sjt = 0x7ff028b453f8
        rve = 0x32
        mct = 0x40000000
        rv = 0x7ffc89e34c20
        rv1 = 0x2000000
        c1 = {cache_type = 2313374144, val_type = 32764, c = {avp_val = {n = 1, s = {s = 0x1 <Address 0x1 out of bounds>, len = 1}, re = 0x1}, pval = {
              rs = {s = 0x1 <Address 0x1 out of bounds>, len = 1}, ri = -1407115050, flags = 52}},
          i2s = "\000\000\000\000\000\000\000\000\274\224 \254\064\000\000\000\240G\343\211\374\177"}
        s = {s = 0x1 <Address 0x1 out of bounds>, len = -1981593512}
        srevp = {0x7ffc89e34960, 0x34ac208a97}
        mod_f_params = {{type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {
            type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {
              number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0,
              string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {
                s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0},
              data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0,
              attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0,
              select = 0x0}}}
---Type <return> to continue, or q <return> to quit---
        __FUNCTION__ = "do_action"
#5  0x00000000004404b8 in run_actions (h=0x7ffc89e35670, a=0x7ff0285a9340, msg=0x7ff028b453f8) at core/action.c:1552
        t = 0x7ff0285a9340
        ret = -1
        mod = 0x1dde9a0
        ms = 176570657
        __FUNCTION__ = "run_actions"
#6  0x0000000000433692 in do_action (h=0x7ffc89e35670, a=0x7ff0285a9668, msg=0x7ff028b453f8) at core/action.c:1045
        ret = 1
        v = 1
        dst = {send_sock = 0x7ffc89e35380, to = {s = {sa_family = 61042, sa_data = "I", '\000' <repeats 12 times>}, sin = {sin_family = 61042,
              sin_port = 73, sin_addr = {s_addr = 0}, sin_zero = "\000\000\000\000\000\000\000"}, sin6 = {sin6_family = 61042, sin6_port = 73,
              sin6_flowinfo = 0, sin6_addr = {__in6_u = {__u6_addr8 = "\000\000\000\000\000\000\000\000\020\000\000\000\005\000\000", __u6_addr16 = {
                    0, 0, 0, 0, 16, 0, 5, 0}, __u6_addr32 = {0, 0, 16, 5}}}, sin6_scope_id = 673678288}}, id = 32752, proto = 0 '\000', send_flags = {
            f = 0, blst_imask = 32752}}
        tmp = 0x66307b "H\213E\270H\203\300\070\351O\003"
        new_uri = 0x7ff028a93048 ""
        end = 0x7ff028a93038 "\303l\256"
        crt = 0x2000000 <Address 0x2000000 out of bounds>
        cmd = 0x1773508
        len = 6791248
        user = 0
        uri = {user = {s = 0xae6ecd "", len = 11430897}, passwd = {s = 0x7c95f8 "core: core/parser/msg_parser.c", len = 682507016}, host = {
            s = 0xae6c43 "To: <sip:usrloc@10.112.103.64:5080>\r\nFrom: <sip:usrloc@10.112.101.128:5060>;tag=8a3534eb92149bbe647f599d354f2511-090e\r\nCSeq: 10 KDMQ\r\nCall-ID: 409f4ac5788a8cc4-24333@10.112.101.128\r\nContent-Length: 39"..., len = 11430924}, port = {s = 0x0, len = 682507072}, params = {
            s = 0x7ff028ae3c90  <incomplete sequence \350>, len = 0}, sip_params = {s = 0x7ffc89e35330 "\246", len = 6697083}, headers = {
            s = 0x7c9170 "core", len = -1981590832}, port_no = 8, proto = 0, type = ERROR_URI_T, flags = 30415600, transport = {
            s = 0xa8428197 <Address 0xa8428197 out of bounds>, len = -1675583518}, ttl = {s = 0x3000000030 <Address 0x3000000030 out of bounds>,
            len = 44108294}, user_param = {s = 0x400000017 <Address 0x400000017 out of bounds>, len = 8176032}, maddr = {s = 0x0, len = -1981590448},
          method = {s = 0x389c603c48 "", len = 11431629}, lr = {s = 0x7ffc89e35450 "\220T\343\211\374\177", len = 6869803}, r2 = {
            s = 0x7cc190 "get_hdr_field", len = 6730416}, gr = {s = 0x7ffc89e35300 "", len = 673677328}, transport_val = {s = 0x389c422190 "",
            len = 673677328}, ttl_val = {s = 0x7ffc89e35350 "\200S\343\211\374\177", len = -413652166}, user_param_val = {s = 0x40e7f9 "", len = 0},
          maddr_val = {s = 0x2000000 <Address 0x2000000 out of bounds>, len = 24588552}, method_val = {
            s = 0x67a450 "\030A\211\321A)\301D\211ȉ\302H\213\205(\377\377\377\211P \276\004", len = 8965880}, lr_val = {
            s = 0x8cd2d0 <Address 0x8cd2d0 out of bounds>, len = 8}, r2_val = {s = 0xa6 <Address 0xa6 out of bounds>, len = 8136007}, gr_val = {
            s = 0x7c95f8 "core: core/parser/msg_parser.c", len = 682176488}}
        next_hop = {user = {s = 0x1e7374b9a <Address 0x1e7374b9a out of bounds>, len = 674472240}, passwd = {
            s = 0xffffffff <Address 0xffffffff out of bounds>, len = 4289104}, host = {s = 0x4e2cb1825 <Address 0x4e2cb1825 out of bounds>,
            len = -1667705792}, port = {s = 0x0, len = 1073741824}, params = {s = 0x2000000 <Address 0x2000000 out of bounds>, len = 4289104},
          sip_params = {s = 0x7ffc89e35180 "\360Q\343\211\374\177", len = 6031673}, headers = {s = 0x7fefe2cb183f "", len = -1981591296},
          port_no = 23013, proto = 58022, type = 32751, flags = 2313376240, transport = {s = 0x7fefe7374b9a "%x%c%x%c", len = -1981590944}, ttl = {
---Type <return> to continue, or q <return> to quit---
            s = 0x1a <Address 0x1a out of bounds>, len = 4289104}, user_param = {s = 0x7fefe2a659e5 "5e6a5a14-1fa-", len = -1670974014}, maddr = {
            s = 0x30fbad8001 <Address 0x30fbad8001 out of bounds>, len = -492414491}, method = {s = 0x7fefe2a659e5 "5e6a5a14-1fa-", len = -492414491},
          lr = {s = 0x7fefe2a659e5 "5e6a5a14-1fa-", len = -492414478}, r2 = {s = 0x7fefe2a659ff "", len = -492414491}, gr = {s = 0x7fefe2a659ff "",
            len = 0}, transport_val = {s = 0x0, len = 6730416}, ttl_val = {s = 0x7ffc89e351a0 "", len = 673677328}, user_param_val = {
            s = 0x2000000 <Address 0x2000000 out of bounds>, len = 673677328}, maddr_val = {s = 0x7ffc89e351f0 "Cl\256", len = -413652166},
          method_val = {s = 0x7ff028278010 "\001", len = 0}, lr_val = {s = 0x2000000 <Address 0x2000000 out of bounds>, len = 24589344}, r2_val = {
            s = 0x67a138 "", len = 8965088}, gr_val = {s = 0x8cd2d0 <Address 0x8cd2d0 out of bounds>, len = 682507072}}
        u = 0x66273d
        port = 0
        dst_host = 0x40000000
        i = 28
        flags = 0
        avp = 0xae6cc7
        st = {flags = 31129600, id = 0, name = {n = 0, s = {s = 0x0, len = 93}, re = 0x0}, avp = 0x7ffc89e35080}
        sct = 0x7ffc89e35490
        sjt = 0x6943d3
        rve = 0x7ff0285a8808
        mct = 0x6a283b
        rv = 0x0
        rv1 = 0x7c9170
        c1 = {cache_type = 24, val_type = 48, c = {avp_val = {n = -1981590720, s = {s = 0x7ffc89e35340 "\370\225|", len = -1981590912},
              re = 0x7ffc89e35340}, pval = {rs = {s = 0x7ffc89e35340 "\370\225|", len = -1981590912}, ri = 0, flags = 0}},
          i2s = '\000' <repeats 21 times>}
        s = {s = 0x7fefe2cb183f "", len = -490006491}
        srevp = {0x7fefe2cb1825, 0x7fefe2cb1832}
        mod_f_params = {{type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {
            type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {
              number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0,
              string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {
                s = 0x0, len = 0}, data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0},
              data = 0x0, attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0,
              attr = 0x0, select = 0x0}}, {type = NOSUBTYPE, u = {number = 0, string = 0x0, str = {s = 0x0, len = 0}, data = 0x0, attr = 0x0,
              select = 0x0}}}
        __FUNCTION__ = "do_action"
#7  0x00000000004404b8 in run_actions (h=0x7ffc89e35670, a=0x7ff0285a85d0, msg=0x7ff028b453f8) at core/action.c:1552
        t = 0x7ff0285a9668
        ret = 1
        mod = 0x417250
        ms = 176570657
        __FUNCTION__ = "run_actions"
#8  0x0000000000440c4a in run_top_route (a=0x7ff0285a85d0, msg=0x7ff028b453f8, c=0x0) at core/action.c:1641
---Type <return> to continue, or q <return> to quit---
        ctx = {rec_lev = 2, run_flags = 0, last_retcode = 1, jmp_env = {{__jmpbuf = {140669451785720, -8516593617994257148, 50, 1073741824, 33554432,
                4289104, -8516593618092823292, 8518532807277145348}, __mask_was_saved = 0, __saved_mask = {__val = {140668355198191, 4302791168, 48,
                  48, 18446744073709551615, 140722621863712, 140668355198919, 50, 0, 4611686022755909632, 140669451785208, 140722621863776, 5814046,
                  6608344928, 140669451785208, 0}}}}}
        p = 0x7ffc89e35670
        ret = 682907128
        sfbk = 0
#9  0x000000000052e6b9 in receive_msg (
    buf=0xae6bc0 "KDMQ sip:usrloc@10.112.103.64:5080 SIP/2.0\r\nVia: SIP/2.0/UDP 10.112.101.128;branch=z9hG4bK8791.0c350dd3", '0' <repeats 24 times>, ".0\r\nTo: <sip:usrloc@10.112.103.64:5080>\r\nFrom: <sip:usrloc@10.112.101.128"..., len=781, rcv_info=0x7ffc89e35a70) at core/receive.c:264
        msg = 0x7ff028b453f8
        ctx = {rec_lev = -1981589208, run_flags = 32764, last_retcode = 8, jmp_env = {{__jmpbuf = {163, 4253893, 8100093, 140669451683568,
                140722621864176, 4845170, 0, 21474836480}, __mask_was_saved = 673677840, __saved_mask = {__val = {140668768878592, 140722621864448,
                  6697083, 8094080, 5501958, 243141751568, 140669476122624, 140722621864896, 4294967295, 88212724672, 1, 140668357584160, 0, 33554432,
                  1024, 6608345520}}}}}
        bctx = 0x7ffc89e359b0
        ret = 0
        stats_on = 0
        tvb = {tv_sec = 140722621864208, tv_usec = 8961768}
        tve = {tv_sec = 0, tv_usec = 243139749096}
        tz = {tz_minuteswest = 50, tz_dsttime = 0}
        diff = 0
        inb = {
          s = 0xae6bc0 "KDMQ sip:usrloc@10.112.103.64:5080 SIP/2.0\r\nVia: SIP/2.0/UDP 10.112.101.128;branch=z9hG4bK8791.0c350dd3", '0' <repeats 24 times>, ".0\r\nTo: <sip:usrloc@10.112.103.64:5080>\r\nFrom: <sip:usrloc@10.112.101.128"..., len = 781}
        netinfo = {data = {s = 0x7ffc00000001 <Address 0x7ffc00000001 out of bounds>, len = 0}, dst = 0x1, rcv = 0x389c422190}
        keng = 0x0
        __FUNCTION__ = "receive_msg"
#10 0x00000000006456a3 in udp_rcv_loop () at core/udp_server.c:515
        len = 781
        buf = "KDMQ sip:usrloc@10.112.103.64:5080 SIP/2.0\r\nVia: SIP/2.0/UDP 10.112.101.128;branch=z9hG4bK8791.0c350dd3", '0' <repeats 24 times>, ".0\r\nTo: <sip:usrloc@10.112.103.64:5080>\r\nFrom: <sip:usrloc@10.112.101.128:5060>;tag=8a3"...
        tmp = 0x100000000 <Address 0x100000000 out of bounds>
        from = 0x7ff028b2c728
        fromlen = 16
        ri = {src_ip = {af = 2, len = 4, u = {addrl = {140722462617610, 140722621864592}, addr32 = {2154131466, 32764, 2313378448, 32764}, addr16 = {
                28682, 32869, 32764, 0, 23184, 35299, 32764, 0}, addr = "\npe\200\374\177\000\000\220Z\343\211\374\177\000"}}, dst_ip = {af = 2,
            len = 4, u = {addrl = {1080520714, 0}, addr32 = {1080520714, 0, 0, 0}, addr16 = {28682, 16487, 0, 0, 0, 0, 0, 0},
              addr = "\npg@", '\000' <repeats 11 times>}}, src_port = 5060, dst_port = 5080, proto_reserved1 = 0, proto_reserved2 = 0, src_su = {s = {
              sa_family = 2, sa_data = "\023\304\npe\200\000\000\000\000\000\000\000"}, sin = {sin_family = 2, sin_port = 50195, sin_addr = {
                s_addr = 2154131466}, sin_zero = "\000\000\000\000\000\000\000"}, sin6 = {sin6_family = 2, sin6_port = 50195,
---Type <return> to continue, or q <return> to quit---
              sin6_flowinfo = 2154131466, sin6_addr = {__in6_u = {__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0},
                  __u6_addr32 = {0, 0, 0, 0}}}, sin6_scope_id = 0}}, bind_address = 0x7ff02830fff0, proto = 1 '\001'}
        __FUNCTION__ = "udp_rcv_loop"
#11 0x0000000000423c7d in main_loop () at main.c:1623
        i = 0
        pid = 0
        si = 0x7ff02830fff0
        si_desc = "udp receiver child=0 sock=10.112.103.64:5080\000\000\000\000 _\343\211\374\177\000\000\062\000\000\000\000\000\000\000\000\000\000@\000\000\000\000\000\000\000\002\000\000\000\000PrA\000\000\000\000\000PSn\234\070\000\000\000\060\000\000\000\060\000\000\000\020]\343\211\374\177\000\000@\\\343\211\374\177\000\000\000px\347\357\177\000"
        nrprocs = 4
        woneinit = 0
        __FUNCTION__ = "main_loop"
#12 0x000000000042b0ce in main (argc=13, argv=0x7ffc89e36008) at main.c:2646
        cfg_stream = 0x1bb5010
        c = -1
        r = 0
        tmp = 0x7ffc89e36ef7 ""
        tmp_len = 32764
        port = -1981587768
        proto = 56
        options = 0x7434f8 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:x:X:Y:"
        ret = -1
        seed = 4012862799
        rfd = 4
        debug_save = 0
        debug_flag = 0
        dont_fork_cnt = 0
        n_lst = 0x7ffc89e35f08
        p = 0x100000000 <Address 0x100000000 out of bounds>
        st = {st_dev = 64769, st_ino = 148592, st_nlink = 2, st_mode = 16877, st_uid = 498, st_gid = 498, __pad0 = 0, st_rdev = 0, st_size = 4096,
          st_blksize = 4096, st_blocks = 8, st_atim = {tv_sec = 1576522467, tv_nsec = 972000117}, st_mtim = {tv_sec = 1519927576,
            tv_nsec = 668342155}, st_ctim = {tv_sec = 1584026268, tv_nsec = 165523404}, __unused = {0, 0, 0}}
        __FUNCTION__ = "main"
(gdb)

Em ter., 17 de mar. de 2020 às 09:52, Daniel-Constantin Mierla <miconda@gmail.com> escreveu:

Hello,

does it happen only when doing restart of kamailio? Can you send the full backtrace from gdb?

Also, 5.0.x is no longer a supported release for quite some time, try to upgrade to 5.2.x or even better to the latest one 5.3.x and see if you can reproduce it with one of the supported releases, maybe it is something that was already fixed.

Cheers,
Daniel

On 17.03.20 10:32, Virgílio Cunha wrote:
Hello,

I have in production environment with 4 proxies using DMQ to sync terminal registers and the DMQ configuration parameters is following:
loadmodule "dmq.so"
#modparam("dmq", "server_address", "sip:MY_IP_ADDRESS:MY_PORT_ADDRESS")
modparam("dmq", "notification_address", "DMQ_HOSTS")
modparam("dmq", "multi_notify", 1)
modparam("dmq", "num_workers", 4)


In the lab environment with the same configuration that in prod, I can simulate this problem with 12000 terminal REGISTERS and, when doing several restarts on a proxy, one of them is generated a coredump. 
Analyzing the core, I can see that the problem is concurrency in the dmq synchronization. 

Job_queue_size (...) is called with a valid queue and, but inside this function, the queue is null.


(gdb) up
#1  0x00007fefe58ee246 in job_queue_size (queue=0x0) at worker.c:254
254             return atomic_get(&queue->count);
(gdb) print queue
$1 = (job_queue_t *) 0x0
(gdb) up
#2  0x00007fefe58ed920 in add_dmq_job (msg=0x7ff028b453f8, peer=0x7fefebcc4df8) at worker.c:184
184                     if(job_queue_size(workers[i].queue) == 0) {
(gdb) print i
$2 = 1
(gdb) print workers[i].queue
$3 = (job_queue_t *) 0x7fefebce49b0

If I configure DMQ with  num_workers=1 I can't reproduce this problem.
I'm using the kamailio 5.0.8 release.

Is this problem known to you? What is the right way to solve it?

Best Regards,
Virgílio Cunha

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-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda