[SR-Users] Crash Kamailio 4.1.4
Daniel-Constantin Mierla
miconda at gmail.com
Mon Aug 4 16:23:57 CEST 2014
Hello,
the problem was that a structure in shared memory (the request cloned in
tm) could have been used in parallel by different kamailio processes.
If there were two processes at the same time, parsing PAI resulted in
setting the header pointer to a private memory. The other process could
overtake in processing, using the same cloned request, and this time the
pai pointer is set, but to another private memory zone. I added the
locks for calling the callbacks, so the process that parse the PAI is
the one cleaning it.
Performances should not be impacted that much, the transaction lock is
used and will add sequential processing when there are two replies at
the same time, which is not the common.
Cheers,
Daniel
On 07/07/14 12:40, Igor Potjevlesch wrote:
> Hello,
>
> Can you explain the modification and the impact on our plateform?
> Is it for the pai problem?
>
> Do you have explanation for the km_val.c problem wich cause crash for
> Kamailio too?
>
> Regards,
>
> Igor
>
>
>
>
> 2014-07-01 16:40 GMT+02:00 Daniel-Constantin Mierla <miconda at gmail.com
> <mailto:miconda at gmail.com>>:
>
> Hello,
>
> can you give it a try with the patch from next commit?
>
> -
> http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=da9d56be28e050dd0cb4aed50efcbda043a3e5cf
>
> If all goes fine while testing, I will backport.
>
> Cheers,
> Daniel
>
>
> On 26/06/14 12:58, Igor Potjevlesch wrote:
>> Hello,
>>
>> Here the result :
>>
>> (gdb) frame 6
>>
>> #6 0x00007f127cb6dde6 in acc_onreply (t=0x7f1274c157f0,
>> req=0x7f1274c3ac08,
>> reply=0x7f12804a6d70, code=200) at acc_logic.c:501
>> 501 clean_hdr_field(hdr);
>> (gdb) print hdr
>> $1 = (hdr_field_t *) 0x7f1274c3c238
>> (gdb) print *hdr
>> $2 = {type = HDR_PAI_T, name = {
>> s = 0x7f1274c3b6cd "P-Asserted-Identity:
>> <sip:0123456789 at domain;user=phone>\r\nP-Sig-Options:
>> Sending-Complete\r\n\r\nv=0\r\no=- 111851 1 IN IP4
>> A.B.C.D\r\ns=-\r\nt=0 0\r\nm=audio 21336 RTP/AVP 8 101 13\r\nc=IN
>> IP4 A.B.C"..., len = 19}, body = {
>> s = 0x7f1274c3b6e2
>> "<sip:0123456789 at domain;user=phone>\r\nP-Sig-Options:
>> Sending-Complete\r\n\r\nv=0\r\no=- 111851 1 IN IP4
>> A.B.C.D\r\ns=-\r\nt=0 0\r\nm=audio 21336 RTP/AVP 8 101 13\r\nc=IN
>> IP4 A.B.C.D\r\na=rtpmap:101 tele"..., len = 44}, len = 67, parsed
>> = 0x0, next = 0x7f1274c3c278}
>>
>> (gdb) frame 4
>>
>> #4 0x000000000056e5e6 in free_pai_ppi_body (pid_b=0x7f12803cb480)
>> at parser/parse_ppi_pai.c:102
>> 102 pkg_free(pid_b);
>> (gdb) print *pid_b
>> $3 = {id = 0x0, num_ids = 0, next = 0x1d0}
>>
>> This is the bt full :
>>
>>
>> #0 0x0000003d6f6328a5 in raise () from /lib64/libc.so.6
>> No symbol table info available.
>> #1 0x0000003d6f634085 in abort () from /lib64/libc.so.6
>> No symbol table info available.
>> #2 0x0000000000546d3c in qm_debug_frag (qm=0x7f1280275010,
>> f=0x7f12803cb450) at mem/q_malloc.c:142
>> __FUNCTION__ = "qm_debug_frag"
>>
>> #3 0x0000000000548b26 in qm_free (qm=0x7f1280275010,
>> p=0x7f12803cb480, file=0x6276a0 "<core>: parser/parse_ppi_pai.c",
>> func=0x627a00 "free_pai_ppi_body", line=102) at mem/q_malloc.c:464
>> f = 0x7f12803cb450
>> size = 139717434027144
>> next = 0xf00000000
>> prev = 0x7f127cd79e00
>> __FUNCTION__ = "qm_free"
>>
>> #4 0x000000000056e5e6 in free_pai_ppi_body
>> (pid_b=0x7f12803cb480) at parser/parse_ppi_pai.c:102
>> __FUNCTION__ = "free_pai_ppi_body"
>>
>> #5 0x000000000054fee0 in clean_hdr_field (hf=0x7f1274c3c238) at
>> parser/hf.c:126
>> h_parsed = 0x7f1274c3c268
>> __FUNCTION__ = "clean_hdr_field"
>>
>> #6 0x00007f127cb6dde6 in acc_onreply (t=0x7f1274c157f0,
>> req=0x7f1274c3ac08, reply=0x7f12804a6d70, code=200) at
>> acc_logic.c:501
>> new_uri_bk = {s = 0x7f1274b53cdf "sip:0987654321 at GW
>> SIP/2.0\r\nRecord-Route: <sip:A.B.C.D;lr=on>\r\nVia: SIP/2.0/UDP
>> A.B.C.D;branch=z9hG4bK512b.82b197888826f6b60c0c63b79801294d.0\r\nVia:
>> SIP/2.0/UDP A.B.C.D:2057;branch=z9hG4bK-12"..., len = 19}
>> br = 0
>> hdr = 0x7f1274c3c238
>> __FUNCTION__ = "acc_onreply"
>>
>> #7 0x00007f127cb6e30a in tmcb_func (t=0x7f1274c157f0, type=512,
>> ps=0x7fff0b015580) at acc_logic.c:573
>> __FUNCTION__ = "tmcb_func"
>>
>> #8 0x00007f127ed68478 in run_trans_callbacks_internal
>> (cb_lst=0x7f1274c15860, type=512, trans=0x7f1274c157f0,
>> params=0x7fff0b015580) at t_hooks.c:290
>> cbp = 0x7f1274ac0e90
>> backup_from = 0x934630
>> backup_to = 0x934638
>> backup_dom_from = 0x934640
>> backup_dom_to = 0x934648
>> backup_uri_from = 0x934620
>> backup_uri_to = 0x934628
>> backup_xavps = 0x934760
>> __FUNCTION__ = "run_trans_callbacks_internal"
>>
>> #9 0x00007f127ed6868a in run_trans_callbacks_with_buf (type=512,
>> rbuf=0x7f1274c158b0, req=0x7f1274c3ac08, repl=0x7f12804a6d70,
>> flags=200) at t_hooks.c:336
>> params = {req = 0x7f1274c3ac08, rpl = 0x7f12804a6d70,
>> param = 0x7f1274ac0ea0, code = 200, flags = 200, branch = 0,
>> t_rbuf = 0x7f1274c158b0, dst = 0x7f1274c15900, send_buf = {
>> s = 0x7f1274c27620 "SIP/2.0 200 OK\r\nVia:
>> SIP/2.0/UDP
>> A.B.C.D:2057;branch=z9hG4bK-129F259C;rport=2057\r\nCall-ID:
>> cb03dc02e909d3118f86009033290024 at A.B.C.D\r\nFrom
>> <mailto:cb03dc02e909d3118f86009033290024 at A.B.C.D%5Cr%5CnFrom>:
>> <sip:0123456789 at domain;user=phone>;epid=00903"..., len = 1021}}
>> trans = 0x7f1274c157f0
>>
>> #10 0x00007f127ed9ac06 in relay_reply (t=0x7f1274c157f0,
>> p_msg=0x7f12804a6d70, branch=0, msg_status=200,
>> cancel_data=0x7fff0b0158e0, do_put_on_wait=1) at t_reply.c:2001
>> relay = 0
>> save_clone = 0
>> buf = 0x7f12804a7cc0 "SIP/2.0 200 OK\r\nVia: SIP/2.0/UDP
>> A.B.C.D:2057;branch=z9hG4bK-129F259C;rport=2057\r\nCall-ID:
>> cb03dc02e909d3118f86009033290024 at A.B.C.D\r\nFrom
>> <mailto:cb03dc02e909d3118f86009033290024 at A.B.C.D%5Cr%5CnFrom>:
>> <sip:0123456789 at domain;user=phone>;epid=00903"...
>> res_len = 1021
>> relayed_code = 200
>> relayed_msg = 0x7f12804a6d70
>> reply_bak = 0x7fff0b015730
>> bm = {to_tag_val = {s = 0x7f1274c16d88 "", len = 5449343}}
>> totag_retr = 0
>> reply_status = RPS_COMPLETED
>> uas_rb = 0x7f1274c158b0
>> to_tag = 0x0
>> reason = {s = 0x10b0156e0 <Address 0x10b0156e0 out of
>> bounds>, len = 1}
>> onsend_params = {req = 0x200924a64, rpl = 0x7f127edbaf90,
>> param = 0x414cc0, code = 1, flags = 0, branch = 0, t_rbuf =
>> 0x7f126a80c828, dst = 0x7f12804a6f68, send_buf = {s = 0xb015700
>> <Address 0xb015700 out of bounds>, len = 1024}}
>> __FUNCTION__ = "relay_reply"
>>
>> #11 0x00007f127ed9d0b7 in reply_received (p_msg=0x7f12804a6d70)
>> at t_reply.c:2499
>> msg_status = 200
>> last_uac_status = 183
>> ack = 0x40 <Address 0x40 out of bounds>
>> ack_len = 0
>> branch = 0
>> reply_status = -2143420688 <tel:2143420688>
>> onreply_route = 1
>> cancel_data = {cancel_bitmap = 0, reason = {cause = 200,
>> u = {text = {s = 0x0, len = 9586191}, e2e_cancel = 0x0,
>> packed_hdrs = {s = 0x0, len = 9586191}}}}
>> uac = 0x7f1274c15958
>> t = 0x7f1274c157f0
>> lack_dst = {send_sock = 0x7f12803e4110, to = {s =
>> {sa_family = 20496, sa_data =
>> "'\200\022\177\000\000\310\036#\000\000\000\000"}, sin =
>> {sin_family = 20496, sin_port = 32807, sin_addr = {s_addr =
>> 32530}, sin_zero = "\310\036#\000\000\000\000"}, sin6 = {
>> sin6_family = 20496, sin6_port = 32807,
>> sin6_flowinfo = 32530, sin6_addr = {__in6_u = {__u6_addr8 =
>> "\310\036#\000\000\000\000\000\360\247=\200\022\177\000",
>> __u6_addr16 = {7880, 35, 0, 0, 42992, 32829, 32530, 0},
>> __u6_addr32 = {2301640, 0, 2151524336,
>> 32530}}}, sin6_scope_id = 2150060928}}, id =
>> 32530, proto = 72 'H', send_flags = {f = 228 '\344', blst_imask =
>> 61 '='}}
>> backup_user_from = 0x934630
>> backup_user_to = 0x934638
>> backup_domain_from = 0x934640
>> backup_domain_to = 0x934648
>> backup_uri_from = 0x934620
>> backup_uri_to = 0x934628
>> backup_xavps = 0x934760
>> replies_locked = 1
>> branch_ret = 0
>> prev_branch = 184637856
>> blst_503_timeout = 32767
>> hf = 0x7f12804a6d90
>> onsend_params = {req = 0x7fff0b015960, rpl = 0x550b94,
>> param = 0x231dc8, code = 0, flags = 3, branch = 0, t_rbuf =
>> 0x7f1280275380, dst = 0x7f12803de418, send_buf = {s =
>> 0x7fff0b015960 "`G\223", len = 5538037}}
>> ctx = {rec_lev = 0, run_flags = 0, last_retcode = 0,
>> jmp_env = {{__jmpbuf = {139717438500712, 3644308075193502665,
>> 4279488, 140733378027408, 0, 0, 3644308075281583049,
>> -3644194520509117495}, __mask_was_saved = 0, __saved_mask =
>> {__val = {9586395,
>> 1065161476041, 124554051613, 9586471,
>> 139717437685488, 9587300, 9586197, 361695345073193192, 9586295,
>> 9586274, 2151546560, 139717437685488, 139717437615640,
>> 139717438500712, 4279488, 140733378027408}}}}}
>> __FUNCTION__ = "reply_received"
>>
>> #12 0x000000000045d837 in do_forward_reply (msg=0x7f12804a6d70,
>> mode=0) at forward.c:777
>> new_buf = 0x0
>> dst = {send_sock = 0x0, to = {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}}, id = 0, proto
>> = 0 '\000', send_flags = {f = 0 '\000', blst_imask = 0 '\000'}}
>> new_len = 32530
>> r = 1
>> s = 0x464804a6d78 <Address 0x464804a6d78 out of bounds>
>> len = 0
>> __FUNCTION__ = "do_forward_reply"
>>
>> #13 0x000000000045e0f8 in forward_reply (msg=0x7f12804a6d70) at
>> forward.c:860
>> No locals.
>> #14 0x00000000004a58e7 in receive_msg (buf=0x924600 "SIP/2.0 200
>> OK\r\nVia: SIP/2.0/UDP
>> 185.20.8.4;branch=z9hG4bK512b.82b197888826f6b60c0c63b79801294d.0;received=185.20.8.4\r\nVia:
>> SIP/2.0/UDP
>> 10.143.1.2:2057;branch=z9hG4bK-129F259C;rport=2057\r\nCall-ID:
>> cb0"...,
>> len=1124, rcv_info=0x7fff0b015c60) at receive.c:273
>> msg = 0x7f12804a6d70
>> ctx = {rec_lev = 8868984, run_flags = 0, last_retcode =
>> 0, jmp_env = {{__jmpbuf = {0, 0, 0, 263853236176, 1, 0,
>> 169653785368, 9586112}, __mask_was_saved = 184638568,
>> __saved_mask = {__val = {139717436454816, 12884901899,
>> 139717436454816, 4279488,
>> 140733378027408, 140733378026464, 5477954, 0,
>> 139717072962944, 50195, 169290548608, 9586112, 140733378026592,
>> 140733378026512, 5474789, 4279488}}}}}
>> ret = 32530
>> inb = {s = 0x924600 "SIP/2.0 200 OK\r\nVia: SIP/2.0/UDP
>> A.B.C.D;branch=z9hG4bK512b.82b197888826f6b60c0c63b79801294d.0;received=A.B.C.D\r\nVia:
>> SIP/2.0/UDP
>> A.B.C.D:2057;branch=z9hG4bK-129F259C;rport=2057\r\nCall-ID:
>> cb0"..., len = 1124}
>> __FUNCTION__ = "receive_msg"
>>
>> #15 0x000000000053c9a8 in udp_rcv_loop () at udp_server.c:536
>> len = 1124
>> buf = "SIP/2.0 200 OK\r\nVia: SIP/2.0/UDP
>> A.B.C.D;branch=z9hG4bK512b.82b197888826f6b60c0c63b79801294d.0;received=A.B.C.D\r\nVia:
>> SIP/2.0/UDP
>> A.B.C.D:2057;branch=z9hG4bK-129F259C;rport=2057\r\nCall-ID: cb0"...
>> tmp = 0x9245c0 "10.143.1.10"
>> from = 0x7f12803e3f68
>> fromlen = 16
>> ri = {src_ip = {af = 2, len = 4, u = {addrl = {403182777,
>> 139717436454816}, addr32 = {403182777, 0, 2150315936, 32530},
>> addr16 = {5305, 6152, 0, 0, 14240, 32811, 32530, 0}, addr =
>> "\271\024\b\030\000\000\000\000\240\067+\200\022\177\000"}},
>> dst_ip = {af = 2,
>> len = 4, u = {addrl = {67638457, 0}, addr32 =
>> {67638457, 0, 0, 0}, addr16 = {5305, 1032, 0, 0, 0, 0, 0, 0},
>> addr = "\271\024\b\004", '\000' <repeats 11 times>}}, src_port =
>> 5060, dst_port = 5060, proto_reserved1 = 0, proto_reserved2 = 0,
>> src_su = {s = {
>> sa_family = 2, sa_data =
>> "\023Ĺ\024\b\030\000\000\000\000\000\000\000"}, sin =
>> {sin_family = 2, sin_port = 50195, sin_addr = {s_addr =
>> 403182777}, sin_zero = "\000\000\000\000\000\000\000"}, sin6 =
>> {sin6_family = 2, sin6_port = 50195,
>> sin6_flowinfo = 403182777, 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 = 0x7f12802b3638, proto = 1 '\001'}
>> __FUNCTION__ = "udp_rcv_loop"
>>
>> #16 0x000000000046d42b in main_loop () at main.c:1617
>> i = 1
>> pid = 0
>> si = 0x7f12802b3638
>> si_desc = "udp receiver child=1
>> sock=A.B.C.D:5060\000D\200\022\177\000\000\000\206\063\200\022\177\000\000.\205^\000\000\000\000\000\020w^\000\000\000\000\000\275\005r/\000\000\000\000\300LA\000\000\000\000\000\220_\001\v\377\177",
>> '\000' <repeats 18 times>"\320,
>> ]\001\v\377\177\000\000\364\244K\000\000\000\000"
>> nrprocs = 15
>> __FUNCTION__ = "main_loop"
>>
>> #17 0x0000000000470533 in main (argc=7, argv=0x7fff0b015f98) at
>> main.c:2545
>> cfg_stream = 0xe20010
>> c = -1
>> r = 0
>> tmp = 0x7fff0b017f70 ""
>> tmp_len = 0
>> port = 0
>> proto = 0
>> options = 0x5e0a68
>> ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:"
>> ret = -1
>> seed = 1972285608
>> rfd = 4
>> debug_save = 0
>> debug_flag = 0
>> dont_fork_cnt = 0
>> n_lst = 0x3d6f60fb88
>> p = 0x5cab80 "H\211l$\330L\211d$\340H\215-o\244*"
>> __FUNCTION__ = "main"
>>
>> In a next mail you will find a new bt full of Kamailio 's crash
>> but about km_val.c : db_mysql_val2str
>>
>>
>>
>> 2014-06-25 18:26 GMT+02:00 Daniel-Constantin Mierla
>> <miconda at gmail.com <mailto:miconda at gmail.com>>:
>>
>>
>> 2014-06-25 18:26 GMT+02:00 Daniel-Constantin Mierla
>> <miconda at gmail.com <mailto:miconda at gmail.com>>:
>>
>> Hello,
>>
>> can you give the output of:
>>
>> frame 6
>> print hdr
>> print *hdr
>>
>> frame 4
>> print *pid_b
>>
>> Also, it would be good to have full trace for other details:
>>
>> bt full
>>
>> Cheers,
>> Daniel
>>
>>
>> On 25/06/14 14:49, Igor Potjevlesch wrote:
>>
>> Hello,
>>
>> We updated this morning Kamailio in 4.1.4 with your patch.
>> [...]
>>
>>
>> --
>> Daniel-Constantin Mierla - http://www.asipto.com
>> http://twitter.com/#!/miconda
>> <http://twitter.com/#%21/miconda> -
>> http://www.linkedin.com/in/miconda
>>
>>
>
> --
> Daniel-Constantin Mierla -http://www.asipto.com
> http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> -http://www.linkedin.com/in/miconda
>
>
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
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