[OpenSIPS-Users] OpenSIPS Crashes

Jorge Ortea darham at hotmail.com
Fri Aug 31 13:50:38 CEST 2012



Hi Bogdan,

My opensips version is 1.6.4-2-tls

I'm considering the possibility of updating the version of opensips, do you think that it could avoid this problem?

Thanks.
Regards.


Date: Fri, 31 Aug 2012 13:58:37 +0300
From: bogdan at opensips.org
To: darham at hotmail.com
CC: users at lists.opensips.org
Subject: Re: [OpenSIPS-Users] OpenSIPS Crashes



  
    
  
  
    Hi Jorge,

      

      It looks like the issue is in the SSL lib - if during the
      "tls_accept" something goes wrong and the accept fails, the
      cleaning procedure SSL_SESSION_free crashes - but all these are
      internal to SSL lib. The only thing that opensips itself can
      affect with is the memory manager (the libssl uses the opensips
      internal mem manager).

      

      What I would suggest is to recompile your opensips with memory
      debugging support - maybe it can point to a double free or so.

      What is your opensips version ?

      

      Regards,

      Bogdan

    Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
    

    On 08/31/2012 01:51 PM, Jorge Ortea wrote:
    
      
      
        

        Hi Bogdan,

        

        I have been investigated it, I got the ERROR logs lines, I don't
        know if this can help you: 

        

        

        Aug 28 01:57:03 muc-vfk21
        /usr/local/opensips/sbin/opensips[3775]: ERROR:core:tcp_send:
        connect failed 

        Aug 28 01:57:03 muc-vfk21
        /usr/local/opensips/sbin/opensips[3775]: ERROR:tm:msg_send:
        tcp_send failed 

        Aug 28 01:57:03 muc-vfk21
        /usr/local/opensips/sbin/opensips[3775]:
        ERROR:tm:t_forward_nonack: sending request failed 

        Aug 28 01:57:50 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:core:tcp_blocking_connect: poll error: flags 18 

        Aug 28 01:57:50 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:core:tcp_blocking_connect: failed to retrieve SO_ERROR
        (111) Connection refused 

        Aug 28 01:57:50 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:core:tcpconn_connect: tcp_blocking_connect failed 

        Aug 28 01:57:50 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]: ERROR:core:tcp_send:
        connect failed 

        Aug 28 01:57:50 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]: ERROR:tm:msg_send:
        tcp_send failed 

        Aug 28 01:57:50 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:tm:t_forward_nonack: sending request failed 

        Aug 28 01:57:50 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:core:tcp_blocking_connect: poll error: flags 18 

        Aug 28 01:57:50 muc-vfk21
        /usr/local/opensips/sbin/opensips[3805]: ERROR:core:_tls_read:
        SYSCALL error -> (024) <Connection reset by peer> 

        Aug 28 01:57:50 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:core:tcp_blocking_connect: failed to retrieve SO_ERROR
        (111) Connection refused 

        Aug 28 01:57:50 muc-vfk21
        /usr/local/opensips/sbin/opensips[3805]: ERROR:core:_tls_read:
        something wrong in SSL: 5 

        Aug 28 01:57:50 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:core:tcpconn_connect: tcp_blocking_connect failed 

        Aug 28 01:57:50 muc-vfk21
        /usr/local/opensips/sbin/opensips[3805]:
        ERROR:core:tcp_read_req: failed to read  

        Aug 28 01:57:50 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]: ERROR:core:tcp_send:
        connect failed 

        Aug 28 01:57:50 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]: ERROR:tm:msg_send:
        tcp_send failed 

        Aug 28 01:57:51 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:tm:t_forward_nonack: sending request failed 

        Aug 28 01:57:51 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:core:tcp_blocking_connect: poll error: flags 18 

        Aug 28 01:57:51 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:core:tcp_blocking_connect: failed to retrieve SO_ERROR
        (111) Connection refused 

        Aug 28 01:57:51 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:core:tcpconn_connect: tcp_blocking_connect failed 

        Aug 28 01:57:51 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]: ERROR:core:tcp_send:
        connect failed 

        Aug 28 01:57:51 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]: ERROR:tm:msg_send:
        tcp_send failed 

        Aug 28 01:57:51 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:tm:t_forward_nonack: sending request failed 

        Aug 28 01:57:51 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:core:tcp_blocking_connect: poll error: flags 18 

        Aug 28 01:57:51 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:core:tcp_blocking_connect: failed to retrieve SO_ERROR
        (111) Connection refused 

        Aug 28 01:57:51 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:core:tcpconn_connect: tcp_blocking_connect failed 

        Aug 28 01:57:51 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]: ERROR:core:tcp_send:
        connect failed 

        Aug 28 01:57:51 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]: ERROR:tm:msg_send:
        tcp_send failed 

        Aug 28 01:57:51 muc-vfk21
        /usr/local/opensips/sbin/opensips[3762]:
        ERROR:tm:t_forward_nonack: sending request failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:core:tcp_blocking_connect: poll error: flags 18 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:core:tcp_blocking_connect: failed to retrieve SO_ERROR
        (111) Connection refused 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:core:tcpconn_connect: tcp_blocking_connect failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]: ERROR:core:tcp_send:
        connect failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]: ERROR:tm:msg_send:
        tcp_send failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:tm:t_forward_nonack: sending request failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:core:tcp_blocking_connect: poll error: flags 18 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:core:tcp_blocking_connect: failed to retrieve SO_ERROR
        (111) Connection refused 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:core:tcpconn_connect: tcp_blocking_connect failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]: ERROR:core:tcp_send:
        connect failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]: ERROR:tm:msg_send:
        tcp_send failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:tm:t_forward_nonack: sending request failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:core:tcp_blocking_connect: poll error: flags 18 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:core:tcp_blocking_connect: failed to retrieve SO_ERROR
        (111) Connection refused 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:core:tcpconn_connect: tcp_blocking_connect failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]: ERROR:core:tcp_send:
        connect failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]: ERROR:tm:msg_send:
        tcp_send failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:tm:t_forward_nonack: sending request failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:core:tcp_blocking_connect: poll error: flags 18 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:core:tcp_blocking_connect: failed to retrieve SO_ERROR
        (111) Connection refused 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:core:tcpconn_connect: tcp_blocking_connect failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]: ERROR:core:tcp_send:
        connect failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]: ERROR:tm:msg_send:
        tcp_send failed 

        Aug 28 02:00:05 muc-vfk21
        /usr/local/opensips/sbin/opensips[3764]:
        ERROR:tm:t_forward_nonack: sending request failed 

        Aug 28 02:43:49 muc-vfk21
        /usr/local/opensips/sbin/opensips[3805]: ERROR:core:_tls_read:
        SYSCALL error -> (0) <Success> 

        Aug 28 02:43:49 muc-vfk21
        /usr/local/opensips/sbin/opensips[3805]: ERROR:core:_tls_read:
        something wrong in SSL: 5 

        Aug 28 02:43:49 muc-vfk21
        /usr/local/opensips/sbin/opensips[3805]:
        ERROR:core:tcp_read_req: failed to read  

        Aug 28 02:47:49 muc-vfk21
        /usr/local/opensips/sbin/opensips[3799]: ERROR:core:_tls_read:
        something wrong in SSL: 1 

        Aug 28 02:47:49 muc-vfk21
        /usr/local/opensips/sbin/opensips[3799]:
        ERROR:core:tls_print_errstack: error:0208F119:SSL
        routines:SSL3_GET_RECORD:decryption failed or bad record mac 

        Aug 28 02:47:49 muc-vfk21
        /usr/local/opensips/sbin/opensips[3799]:
        ERROR:core:tcp_read_req: failed to read 

        

        

        Thanks.

        Regards.

        

        

        
          From: darham at hotmail.com

          To: bogdan at opensips.org; users at lists.opensips.org

          Date: Thu, 30 Aug 2012 15:07:06 +0200

          Subject: Re: [OpenSIPS-Users] OpenSIPS Crashes

          

          
          
            

            Hi Bogdan,

            

            sorry for the disorder,,, I will try explain it:

            

            - Core file 1:

            last line: #0  0x00aed746 in OPENSSL_cleanse () from
            /lib/libcrypto.so.6

            With first segment of backtrace, 8 lines

            

            - Core file 2:

            last line: #0  0x00d26c01 in SSL_CTX_get_timeout () from
            /lib/libssl.so.6

            With second segment of backtrace, 13 lines

            

             

            Thanks.

            Regards.

            

            

            
              Date: Thu, 30 Aug 2012 15:52:08
              +0300

              From: bogdan at opensips.org

              To: users at lists.opensips.org

              CC: darham at hotmail.com

              Subject: Re: [OpenSIPS-Users] OpenSIPS Crashes

              

              And the backtrace for the other core file with:

                    #0  0x00d26c01 in SSL_CTX_get_timeout () from
                /lib/libssl.so.6

                

                REgards,

              Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
              

              On 08/30/2012 11:58 AM, Jorge Ortea wrote:
              
                
                 

                  Hi Bogdan,

                  

                  I have 0.9.8b version of libssl. 

                  

                  - First core dump file:

                  (gdb) bt

                  #0  0x00aed746 in OPENSSL_cleanse () from
                  /lib/libcrypto.so.6

                  #1  0x00d2f4b0 in kssl_ctx_free () from
                  /lib/libssl.so.6

                  #2  0x00d248f4 in SSL_free () from /lib/libssl.so.6

                  #3  0x081606e3 in tls_tcpconn_clean (c=0xb625986c) at
                  tls/tls_server.c:666

                  #4  0x080cbad8 in _tcpconn_rm (c=0xb625986c) at
                  tcp_main.c:505

                  #5  0x080ccd62 in destroy_tcp () at tcp_main.c:1393

                  #6  0x0806e3b5 in cleanup (show_status=1) at
                  main.c:338

                  #7  0x0806f2e4 in handle_sigs () at main.c:534

                  #8  0x08073ac3 in main (argc=1, argv=0xbfbe87a4) at
                  main.c:914

                  (gdb) 

                  

                  

                  - Second coredump file:

                  (gdb) bt

                  #0  0x00d26c01 in SSL_CTX_get_timeout () from
                  /lib/libssl.so.6

                  #1  0x00d26f1f in SSL_SESSION_free () from
                  /lib/libssl.so.6

                  #2  0x00b3f2f7 in sk_dup () from /lib/libcrypto.so.6

                  #3  0x00d26d8c in SSL_CTX_flush_sessions () from
                  /lib/libssl.so.6

                  #4  0x00d23244 in ssl_update_cache () from
                  /lib/libssl.so.6

                  #5  0x00d0e0f6 in ssl3_accept () from /lib/libssl.so.6

                  #6  0x00d22eba in SSL_accept () from /lib/libssl.so.6

                  #7  0x0816461b in tls_accept (c=0xb625986c,
                  poll_events=0x0) at tls/tls_server.c:236

                  #8  0x08164f57 in tls_fix_read_conn (c=0xb625986c) at
                  tls/tls_server.c:889

                  #9  0x080d89e2 in tcp_read_req (con=0xb625986c,
                  bytes_read=0xbfbe8478) at tcp_read.c:451

                  #10 0x080dab94 in handle_io (fm=0x8225ef0, idx=-1) at
                  tcp_read.c:812

                  #11 0x080dc7b7 in tcp_receive_loop (unix_sock=61) at
                  io_wait.h:727

                  #12 0x080cd60e in tcp_init_children
                  (chd_rank=0x819f35c) at tcp_main.c:1706

                  #13 0x08073a71 in main (argc=1, argv=0xbfbe87a4) at
                  main.c:881

                  (gdb) 

                  

                  

                  The only thing I can think of we are testing some
                  softphone with TLS signaling, could be it ??

                  

                  Thanks.

                  Regards.

                  

                  

                  
                    Date: Thu, 30 Aug 2012
                    11:13:23 +0300

                    From: bogdan at opensips.org

                    To: users at lists.opensips.org

                    Subject: Re: [OpenSIPS-Users] OpenSIPS Crashes

                    

                    Hi Jorge,

                    

                    Once you are in gdb, in order to get a back trace,
                    do "bt"

                    

                    Also, what version of libssl do you have on the
                    machine (have you recently upgraded libssl ?)

                    

                    Regards,

                    Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
                    

                    On 08/29/2012 09:48 PM, Jorge Ortea wrote:
                    
                      
                       

                        Hello Bogdan,

                        

                        I just see that there were 2 coredump files,
                        this is the other content:

                        .

                        .

                        .

                        Loaded symbols for
                        /usr/local/opensips/lib/opensips/modules/nat_traversal.so

                        Reading symbols from
/mnt/aux/opensips-1.6.4-2-tls-20110803/bin/opensips-1.6.4-2-tls-20110803/lib/opensips/modules/nathelper.so...done.

                        Loaded symbols for
                        /usr/local/opensips/lib/opensips/modules/nathelper.so

                        Reading symbols from
/mnt/aux/opensips-1.6.4-2-tls-20110803/bin/opensips-1.6.4-2-tls-20110803/lib/opensips/modules/mediaproxy.so...done.

                        Loaded symbols for
                        /usr/local/opensips/lib/opensips/modules/mediaproxy.so

                        Reading symbols from
/mnt/aux/opensips-1.6.4-2-tls-20110803/bin/opensips-1.6.4-2-tls-20110803/lib/opensips/modules/avpops.so...done.

                        Loaded symbols for
                        /usr/local/opensips/lib/opensips/modules/avpops.so

                        Reading symbols from
/mnt/aux/opensips-1.6.4-2-tls-20110803/bin/opensips-1.6.4-2-tls-20110803/lib/opensips/modules/mangler.so...done.

                        Loaded symbols for
                        /usr/local/opensips/lib/opensips/modules/mangler.so

                        Reading symbols from
/mnt/aux/opensips-1.6.4-2-tls-20110803/bin/opensips-1.6.4-2-tls-20110803/lib/opensips/modules/load_balancer.so...done.

                        Loaded symbols for
                        /usr/local/opensips/lib/opensips/modules/load_balancer.so

                        Reading symbols from
/mnt/aux/opensips-1.6.4-2-tls-20110803/bin/opensips-1.6.4-2-tls-20110803/lib/opensips/modules/uac.so...done.

                        Loaded symbols for
                        /usr/local/opensips/lib/opensips/modules/uac.so

                        Reading symbols from
/mnt/aux/opensips-1.6.4-2-tls-20110803/bin/opensips-1.6.4-2-tls-20110803/lib/opensips/modules/dialplan.so...done.

                        Loaded symbols for
                        /usr/local/opensips/lib/opensips/modules/dialplan.so

                        Reading symbols from /lib/libpcre.so.0...done.

                        Loaded symbols for /lib/libpcre.so.0

                        Reading symbols from
                        /lib/libnss_files.so.2...done.

                        Loaded symbols for /lib/libnss_files.so.2

                        Reading symbols from
                        /lib/libnss_dns.so.2...done.

                        Loaded symbols for /lib/libnss_dns.so.2

                        Failed to read a valid object file image from
                        memory.

                        Core was generated by
                        `/usr/local/opensips/sbin/opensips'.

                        Program terminated with signal 11, Segmentation
                        fault.

                        #0  0x00d26c01 in SSL_CTX_get_timeout () from
                        /lib/libssl.so.6

                        

                        Thanks.

                        Regards.

                        

                        
                          From: darham at hotmail.com

                          To: users at lists.opensips.org

                          Date: Wed, 29 Aug 2012 19:30:32 +0200

                          Subject: Re: [OpenSIPS-Users] OpenSIPS Crashes

                          

                          
                           

                            Hello Bogdan,

                            

                            I have achieved this:

                            .

                            .

                            .

                            Reading symbols from
/mnt/aux/opensips-1.6.4-2-tls-20110803/bin/opensips-1.6.4-2-tls-20110803/lib/opensips/modules/nathelper.so...done.

                            Loaded symbols for
                            /usr/local/opensips/lib/opensips/modules/nathelper.so

                            Reading symbols from
/mnt/aux/opensips-1.6.4-2-tls-20110803/bin/opensips-1.6.4-2-tls-20110803/lib/opensips/modules/mediaproxy.so...done.

                            Loaded symbols for
                            /usr/local/opensips/lib/opensips/modules/mediaproxy.so

                            Reading symbols from
/mnt/aux/opensips-1.6.4-2-tls-20110803/bin/opensips-1.6.4-2-tls-20110803/lib/opensips/modules/avpops.so...done.

                            Loaded symbols for
                            /usr/local/opensips/lib/opensips/modules/avpops.so

                            Reading symbols from
/mnt/aux/opensips-1.6.4-2-tls-20110803/bin/opensips-1.6.4-2-tls-20110803/lib/opensips/modules/mangler.so...done.

                            Loaded symbols for
                            /usr/local/opensips/lib/opensips/modules/mangler.so

                            Reading symbols from
/mnt/aux/opensips-1.6.4-2-tls-20110803/bin/opensips-1.6.4-2-tls-20110803/lib/opensips/modules/load_balancer.so...done.

                            Loaded symbols for
                            /usr/local/opensips/lib/opensips/modules/load_balancer.so

                            Reading symbols from
/mnt/aux/opensips-1.6.4-2-tls-20110803/bin/opensips-1.6.4-2-tls-20110803/lib/opensips/modules/uac.so...done.

                            Loaded symbols for
                            /usr/local/opensips/lib/opensips/modules/uac.so

                            Reading symbols from
/mnt/aux/opensips-1.6.4-2-tls-20110803/bin/opensips-1.6.4-2-tls-20110803/lib/opensips/modules/dialplan.so...done.

                            Loaded symbols for
                            /usr/local/opensips/lib/opensips/modules/dialplan.so

                            Reading symbols from
                            /lib/libpcre.so.0...done.

                            Loaded symbols for /lib/libpcre.so.0

                            Reading symbols from
                            /lib/libnss_files.so.2...done.

                            Loaded symbols for /lib/libnss_files.so.2

                            Reading symbols from
                            /lib/libnss_dns.so.2...done.

                            Loaded symbols for /lib/libnss_dns.so.2

                            Failed to read a valid object file image
                            from memory.

                            Core was generated by
                            `/usr/local/opensips/sbin/opensips'.

                            Program terminated with signal 11,
                            Segmentation fault.

                            #0  0x00aed746 in OPENSSL_cleanse () from
                            /lib/libcrypto.so.6

                            (gdb) quit

                            

                            

                            Thanks.

                            Regards.

                            

                            

                            
                              Date: Wed, 29 Aug
                              2012 14:22:19 +0300

                              From: bogdan at opensips.org

                              To: users at lists.opensips.org

                              Subject: Re: [OpenSIPS-Users] OpenSIPS
                              Crashes

                              

                              Hi Jorge,

                                

                                I see a core file was generated - please
                                extract the backtrace from there with
                                gdb and post it here.

                                

                                Thanks and regards,

                              
                              Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
                              

                              On 08/29/2012 02:05 PM, Jorge Ortea wrote:
                              
                                
                                 Hi all,

                                  

                                  I use OpenSIPS 1.6.4-2-tls from one
                                  year ago and it never did anything
                                  like this. Simply auto-killed, I only
                                  have this log:

                                  .

                                  .

                                  .

                                  Aug 28 03:49:04 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3801]:
                                  INFO:core:tls_accept: client did not
                                  present a certificate 

                                  Aug 28 03:49:12 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3805]:
                                  INFO:core:tls_accept: client did not
                                  present a certificate 

                                  Aug 28 03:49:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3799]:
                                  INFO:core:tls_accept: client did not
                                  present a certificate 

                                  Aug 28 03:49:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3801]:
                                  INFO:core:tls_accept: client did not
                                  present a certificate 

                                  Aug 28 03:51:04 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3801]:
                                  INFO:core:tls_accept: client did not
                                  present a certificate 

                                  Aug 28 03:51:04 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3803]:
                                  INFO:core:tls_accept: client did not
                                  present a certificate 

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3805]:
                                  INFO:core:tls_accept: client did not
                                  present a certificate 

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3839]:
                                  CRITICAL:core:receive_fd: EOF on 62 

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3704]:
                                  INFO:core:handle_sigs: child process
                                  3807 exited by a signal 11 

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3704]:
                                  INFO:core:handle_sigs: core was
                                  generated 

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3704]:
                                  INFO:core:handle_sigs: terminating due
                                  to SIGCHLD 

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3839]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3838]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3832]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3836]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3816]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3834]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3812]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3830]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3828]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3826]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3824]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3828]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3820]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3810]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3818]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3805]:
                                  INFO:core:sig_usr: signal 15 received
                                  

                                  Aug 28 03:51:19 muc-vfk21
                                  /usr/local/opensips/sbin/opensips[3803]:
                                  INFO:core:sig_usr: signal 15 received

                                  .

                                  .

                                  .

                                  

                                  What could be happen ???

                                  

                                  Thanks very much.

                                  Regards. 
                                
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