On 10/09/15 14:36, Thibault Gueslin wrote:


2015-09-10 14:25 GMT+02:00 Daniel-Constantin Mierla <miconda@gmail.com>:
Do you have msrp enabled in configuration file

I don't think so

The last frames of backtrace indicates code related to msrp, but might be just some code lines mismatching.

The issue seems to be in tsilo. I looke over the code and I spotted some "unclear" mechanisms that can lead to race conditions, which may result in invalid access to memory, as it happens in this case, ptr becomes 0x8b08578b49642454 -- from my short investigation, that is likely to be due to following a ->next field in a freed structure.

Not being the author of tsilo module, I can't do much more right now. I will open an issue on bug tracker explaining what I found, assigning Federico (cc-ed, author of the module) to analyze and see if anything is wrong there.

Cheers,
Daniel

 
Send the output from gdb for next commands:

frame 0

#0  ts_append (msg=0x7f883bfd5490, ruri=0x7fff65fbfe30, table=0x7f883bf7e390 "location") at ts_append.c:60

60 in ts_append.c
 
info locals

_r = 0x7f88339bcfd0

ptr = 0x8b08578b49642454

res = 2

__FUNCTION__ = "ts_append"
 
p *msg

 
p *ruri
p *ptr
p *_r


| p *msg

$21 = {id = 2, pid = 31171, tval = {tv_sec = 1441885042, tv_usec = 162339}, fwd_send_flags = {f = 0 '\000', blst_imask = 0 '\000'}, rpl_send_flags = {f = 0 '\000', blst_imask = 0 '\000'}, first_line = {type = 1, 
    flags = 1, len = 46, u = {request = {method = {
          s = 0x7f88339b8910 "REGISTER sip:sip-staging.serveur.com SIP/2.0\r\nVia: SIP/2.0/TCP 172.16.224.222:52242;branch=z9hG4bK20965be26f6a6324;rport\r\nContact: <sip:toto4.toto.com.Ipod_tgu@172.16.224.222:52242;transport=tcp>;expi"..., len = 8}, uri = {
          s = 0x7f88339b8919 "sip:sip-staging.serveur.com SIP/2.0\r\nVia: SIP/2.0/TCP 172.16.224.222:52242;branch=z9hG4bK20965be26f6a6324;rport\r\nContact: <sip:toto4.toto.com.Ipod_tgu@172.16.224.222:52242;transport=tcp>;expires=900\r\n"..., len = 27}, version = {
          s = 0x7f88339b8935 "SIP/2.0\r\nVia: SIP/2.0/TCP 172.16.224.222:52242;branch=z9hG4bK20965be26f6a6324;rport\r\nContact: <sip:toto4.toto.com.Ipod_tgu@172.16.224.222:52242;transport=tcp>;expires=900\r\nMax-Forwards: 69\r\nTo: <sip:t"..., len = 7}, method_value = 32}, reply = {version = {
          s = 0x7f88339b8910 "REGISTER sip:sip-staging.serveur.com SIP/2.0\r\nVia: SIP/2.0/TCP 172.16.224.222:52242;branch=z9hG4bK20965be26f6a6324;rport\r\nContact: <sip:toto4.toto.com.Ipod_tgu@172.16.224.222:52242;transport=tcp>;expi"..., len = 8}, status = {
          s = 0x7f88339b8919 "sip:sip-staging.serveur.com SIP/2.0\r\nVia: SIP/2.0/TCP 172.16.224.222:52242;branch=z9hG4bK20965be26f6a6324;rport\r\nContact: <sip:toto4.toto.com.Ipod_tgu@172.16.224.222:52242;transport=tcp>;expires=900\r\n"..., len = 27}, reason = {
          s = 0x7f88339b8935 "SIP/2.0\r\nVia: SIP/2.0/TCP 172.16.224.222:52242;branch=z9hG4bK20965be26f6a6324;rport\r\nContact: <sip:toto4.toto.com.Ipod_tgu@172.16.224.222:52242;transport=tcp>;expires=900\r\nMax-Forwards: 69\r\nTo: <sip:t"..., len = 7}, statuscode = 32}}}, via1 = 0x7f883bfa7020, via2 = 0x0, headers = 0x7f883bfa6f30, last_header = 0x7f883bfac220, parsed_flag = 18446744073709551615, h_via1 = 0x7f883bfa6f30, 
  h_via2 = 0x0, callid = 0x7f883bfac400, to = 0x7f883bfac688, cseq = 0x7f883bfac388, from = 0x7f883bfa6fa8, contact = 0x7f883bfac778, maxforwards = 0x7f883bfac700, route = 0x0, record_route = 0x0, 
  content_type = 0x0, content_length = 0x7f883bfac220, authorization = 0x0, expires = 0x0, proxy_auth = 0x0, supported = 0x7f883bfb6300, require = 0x0, proxy_require = 0x0, unsupported = 0x0, 
  allow = 0x7f883bfac298, event = 0x0, accept = 0x0, accept_language = 0x0, organization = 0x0, priority = 0x0, subject = 0x0, user_agent = 0x7f883bfac310, server = 0x0, content_disposition = 0x0, diversion = 0x0, 
  rpid = 0x0, refer_to = 0x0, session_expires = 0x0, min_se = 0x0, sipifmatch = 0x0, subscription_state = 0x0, date = 0x0, identity = 0x0, identity_info = 0x0, pai = 0x0, ppi = 0x0, path = 0x0, privacy = 0x0, 
  body = 0x0, eoh = 0x7f88339b8b2b "\r\n", unparsed = 0x7f88339b8b2b "\r\n", rcv = {src_ip = {af = 2, len = 4, u = {addrl = {3334267998, 0}, addr32 = {3334267998, 0, 0, 0}, addr16 = {58462, 50876, 0, 0, 0, 0, 0, 
          0}, addr = "^\344\274\306", '\000' <repeats 11 times>}}, dst_ip = {af = 2, len = 4, u = {addrl = {2667915013, 0}, addr32 = {2667915013, 0, 0, 0}, addr16 = {9989, 40709, 0, 0, 0, 0, 0, 0}, 
        addr = "\005'\005\237", '\000' <repeats 11 times>}}, src_port = 52243, dst_port = 5060, proto_reserved1 = 3, proto_reserved2 = 0, src_su = {s = {sa_family = 2, 
        sa_data = "\314\023^\344\274\306\000\000\000\000\000\000\000"}, sin = {sin_family = 2, sin_port = 5068, sin_addr = {s_addr = 3334267998}, sin_zero = "\000\000\000\000\000\000\000"}, sin6 = {
        sin6_family = 2, sin6_port = 5068, sin6_flowinfo = 3334267998, sin6_addr = {__in6_u = {__u6_addr8 = "\000\000\000\000\000\000\000\000 \206\233\063\210\177\000", __u6_addr16 = {0, 0, 0, 0, 34336, 13211, 
              32648, 0}, __u6_addr32 = {0, 0, 865830432, 32648}}}, sin6_scope_id = 865796800}}, bind_address = 0x7f883bfb6bd0, proto = 2 '\002'}, 
  buf = 0x7f88339b8910 "REGISTER sip:sip-staging.serveur.com SIP/2.0\r\nVia: SIP/2.0/TCP 172.16.224.222:52242;branch=z9hG4bK20965be26f6a6324;rport\r\nContact: <sip:toto4.toto.com.Ipod_tgu@172.16.224.222:52242;transport=tcp>;expi"..., len = 541, new_uri = {s = 0x0, len = 0}, dst_uri = {s = 0x0, len = 0}, parsed_uri_ok = 1, parsed_uri = {user = {s = 0x0, len = 0}, passwd = {s = 0x0, len = 0}, host = {
      s = 0x7f88339b891d "sip-staging.serveur.com SIP/2.0\r\nVia: SIP/2.0/TCP 172.16.224.222:52242;branch=z9hG4bK20965be26f6a6324;rport\r\nContact: <sip:toto4.toto.com.Ipod_tgu@172.16.224.222:52242;transport=tcp>;expires=900\r\nMax-"..., len = 23}, port = {s = 0x0, len = 0}, params = {s = 0x0, len = 0}, sip_params = {s = 0x0, len = 0}, headers = {s = 0x0, len = 0}, port_no = 0, proto = 0, type = SIP_URI_T, 
    flags = (unknown: 0), transport = {s = 0x0, len = 0}, ttl = {s = 0x0, len = 0}, user_param = {s = 0x0, len = 0}, maddr = {s = 0x0, len = 0}, method = {s = 0x0, len = 0}, lr = {s = 0x0, len = 0}, r2 = {s = 0x0, 
      len = 0}, gr = {s = 0x0, len = 0}, transport_val = {s = 0x0, len = 0}, ttl_val = {s = 0x0, len = 0}, user_param_val = {s = 0x0, len = 0}, maddr_val = {s = 0x0, len = 0}, method_val = {s = 0x0, len = 0}, 
    lr_val = {s = 0x0, len = 0}, r2_val = {s = 0x0, len = 0}, gr_val = {s = 0x0, len = 0}}, parsed_orig_ruri_ok = 0, parsed_orig_ruri = {user = {s = 0x0, len = 0}, passwd = {s = 0x0, len = 0}, host = {s = 0x0, 
      len = 0}, port = {s = 0x0, len = 0}, params = {s = 0x0, len = 0}, sip_params = {s = 0x0, len = 0}, headers = {s = 0x0, len = 0}, port_no = 0, proto = 0, type = ERROR_URI_T, flags = (unknown: 0), transport = {
      s = 0x0, len = 0}, ttl = {s = 0x0, len = 0}, user_param = {s = 0x0, len = 0}, maddr = {s = 0x0, len = 0}, method = {s = 0x0, len = 0}, lr = {s = 0x0, len = 0}, r2 = {s = 0x0, len = 0}, gr = {s = 0x0, 
      len = 0}, transport_val = {s = 0x0, len = 0}, ttl_val = {s = 0x0, len = 0}, user_param_val = {s = 0x0, len = 0}, maddr_val = {s = 0x0, len = 0}, method_val = {s = 0x0, len = 0}, lr_val = {s = 0x0, len = 0}, 
    r2_val = {s = 0x0, len = 0}, gr_val = {s = 0x0, len = 0}}, add_rm = 0x0, body_lumps = 0x0, reply_lump = 0x7f883bfa3878, add_to_branch_s = '\000' <repeats 57 times>, add_to_branch_len = 0, hash_index = 39024, 
  msg_flags = 129, flags = 32, set_global_address = {s = 0x0, len = 0}, set_global_port = {s = 0x0, len = 0}, force_send_socket = 0x0, path_vec = {s = 0x0, len = 0}, instance = {s = 0x0, len = 0}, reg_id = 0, 
  ruid = {s = 0x0, len = 0}, location_ua = {s = 0x0, len = 0}, ldv = {flow = {decoded = 0, rcv = {src_ip = {af = 0, len = 0, u = {addrl = {0, 0}, addr32 = {0, 0, 0, 0}, addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, 
            addr = '\000' <repeats 15 times>}}, dst_ip = {af = 0, len = 0, u = {addrl = {0, 0}, addr32 = {0, 0, 0, 0}, addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, addr = '\000' <repeats 15 times>}}, src_port = 0, 
        dst_port = 0, proto_reserved1 = 0, proto_reserved2 = 0, src_su = {s = {sa_family = 0, sa_data = '\000' <repeats 13 times>}, sin = {sin_family = 0, sin_port = 0, sin_addr = {s_addr = 0}, 
            sin_zero = "\000\000\000\000\000\000\000"}, sin6 = {sin6_family = 0, sin6_port = 0, sin6_flowinfo = 0, 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 = 0x0, proto = 0 '\000'}}}}


                  
(gdb) p *ruri
$22 = {s = 0x7f883bf317e8 "toto4.toto.com.Ipod_tgu", len = 23}

(gdb) p *ptr
Cannot access memory at address 0x8b08578b49642454

(gdb) p *_r
$23 = {ruri = {s = 0x7f88339bd040 "toto4.toto.com.Ipod_tgu", len = 23}, rurihash = 164669906, entry = 0x7f883398af08, transactions = 0x7f88339bd090, next = 0x0, prev = 0x0}
 

Cheers,
Daniel


On 10/09/15 14:07, Thibault Gueslin wrote:

[Thread debugging using libthread_db enabled]

Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Core was generated by `/usr/sbin/kamailio -f /etc/kamailio/kamailio.cfg -P /var/run/kamailio/kamailio.'.

Program terminated with signal SIGSEGV, Segmentation fault.

#0  ts_append (msg=0x7f883bfd5490, ruri=0x7fff65fbfe30, table=0x7f883bf7e390 "location") at ts_append.c:60

60 ts_append.c: No such file or directory.

(gdb) bt

#0  ts_append (msg=0x7f883bfd5490, ruri=0x7fff65fbfe30, table=0x7f883bf7e390 "location") at ts_append.c:60

#1  0x00007f8837f638fc in w_ts_append (_msg=0x7f883bfd5490, _table=0x7f883bf7e390 "location", _ruri=0x7f88339aa634 "\002") at tsilo.c:225

#2  0x0000000000534db0 in do_action (h=0x7fff65fc1a40, a=0x7f883bf7d278, msg=0x7f883bfd5490) at action.c:1059

#3  0x00000000005339e8 in run_actions (h=0x7f8837f65540, a=0x5, msg=0x7f88339aa634) at action.c:1548

#4  0x00000000005352e6 in do_action (h=0x7fff65fc1a40, a=0x7f883bf7dc50, msg=0x7f883bfd5490) at action.c:1048

#5  0x00000000005339e8 in run_actions (h=0x7f8837f65540, a=0x5, msg=0x7f88339aa634) at action.c:1548

#6  0x00000000005352e6 in do_action (h=0x7fff65fc1a40, a=0x7f883bf7df48, msg=0x7f883bfd5490) at action.c:1048

#7  0x00000000005339e8 in run_actions (h=0x7f8837f65540, a=0x5, msg=0x7f88339aa634) at action.c:1548

#8  0x00000000005354a3 in do_action (h=0x7fff65fc1a40, a=0x7f883bfa8ab8, msg=0x7f883bfd5490) at action.c:677

#9  0x00000000005339e8 in run_actions (h=0x7f8837f65540, a=0x5, msg=0x7f88339aa634) at action.c:1548

#10 0x00000000005354a3 in do_action (h=0x7fff65fc1a40, a=0x7f883bfa8ab8, msg=0x7f883bfd5490) at action.c:677

#11 0x00000000005339e8 in run_actions (h=0x7f8837f65540, a=0x5, msg=0x7f88339aa634) at action.c:1548

#12 0x00000000005352e6 in do_action (h=0x7fff65fc1a40, a=0x7f883bf56068, msg=0x7f883bfd5490) at action.c:1048

#13 0x00000000005339e8 in run_actions (h=0x7f8837f65540, h@entry=0x7fff65fc1a40, a=0x5, a@entry=0x7f883bf4f958, msg=0x7f88339aa634, msg@entry=0x7f883bfd5490) at action.c:1548

#14 0x000000000053f885 in run_top_route (a=0x7f883bf4f958, msg=0x7f883bfd5490, c=<optimized out>) at action.c:1634

#15 0x00000000005407e6 in receive_msg (buf=0x0, len=5, rcv_info=0x7f88339b8638) at receive.c:196

#16 0x00000000005b806b in tcp_read_req (con=0x7f88339b8620, bytes_read=0x7fff65fc1d50, read_flags=0x7fff65fc1d54) at tcp_read.c:1382

#17 0x00000000005bb4e1 in handle_io (fm=0xb, events=5, idx=865773108) at tcp_read.c:1568

#18 0x00000000005c191a in io_wait_loop_epoll (h=<optimized out>, t=<optimized out>, repeat=<optimized out>) at io_wait.h:1061

#19 tcp_receive_loop (unix_sock=938890560) at tcp_read.c:1733

#20 0x00000000004d3447 in tcp_init_children () at tcp_main.c:4787

#21 0x0000000000506863 in main_loop () at main.c:1658

#22 0x000000000041b944 in main (argc=0, argv=0x0) at main.c:2533


It seems to be on reception of REGISTER from client.




-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Book: SIP Routing With Kamailio - http://www.asipto.com
Kamailio Advanced Training, Sep 28-30, 2015, in Berlin - http://asipto.com/u/kat


-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Book: SIP Routing With Kamailio - http://www.asipto.com
Kamailio Advanced Training, Sep 28-30, 2015, in Berlin - http://asipto.com/u/kat