Re: [SR-Users] Core db_text module

On 9/23/11 1:57 PM, Bruno Bresciani wrote:

Sorry... but I didn't understand how I get the output of:

p _tbc p *_tbc

run these commands inside gdb.

Daniel

Best Regards

2011/9/23 Daniel-Constantin Mierla <miconda@gmail.com mailto:miconda@gmail.com>

Hello,

interesting ... give also the output of:

p _tbc
p *_tbc

Cheers,
Daniel


On 9/23/11 1:27 PM, Bruno Bresciani wrote:

...

Hello,

Doesn't exist a exact often that the table subscriber is changed,
it can be changed at any time and almost always the core is
generated. I was thinking the same thing that you, the deletion
of the table is done without a lock, but the function
dbt_db_get_table that call dbt_db_del_table does this lock
previously...

Follows the output of 'bt full' from gdb:

Program terminated with signal 11, Segmentation fault.
#0  0x008b3603 in dbt_db_del_table (_dc=0xb60fde60,
_s=0xbfc94380, sync=0) at dbt_lib.c:238
238     dbt_lib.c: Arquivo ou diretório não encontrado.
        in dbt_lib.c
(gdb) bt full
#0  0x008b3603 in dbt_db_del_table (_dc=0xb60fde60,
_s=0xbfc94380, sync=0) at dbt_lib.c:238
        _tbc = (dbt_table_p) 0xb6175d20
        hash = 6
#1  0x008b3f38 in dbt_db_get_table (_dc=0xb60fde60,
_s=0xbfc94380) at dbt_lib.c:300
        _tbc = (dbt_table_p) 0xb6175d20
        hash = 6
#2  0x008ae12b in dbt_query (_h=0x82e3c90, _k=0xbfc94378,
_op=0x0, _v=0xbfc94348, _c=0x82e3e50, _n=1, _nc=2, _o=0x0,
_r=0xbfc94390) at dbt_base.c:200
        _tbc = <value optimized out>
        _drp = <value optimized out>
        _dres = <value optimized out>
        lkey = <value optimized out>
        lres = (int *) 0x0
        _o_k = (db_key_t *) 0x0
        _o_op = 0x0
        _o_n = <value optimized out>
        _o_l = <value optimized out>
        _o_nc = <value optimized out>
#3  0x001ae088 in digest_authenticate (msg=0x82df8f8,
realm=<value optimized out>, tname=<value optimized out>,
hftype=HDR_AUTHORIZATION_T) at authorize.c:98
        cred = <value optimized out>
        keys = {0x1b14c8, 0x1b14d0}
        vals = {{type = DB1_STR, nul = 0, free = 165777064, val =
{int_val = 136948130, ll_val = 17316817314 <tel:17316817314>,
double_val = 8.5556445301562903e-314,
      time_val = 136948130,
      string_val = 0x829a9a2 "3022\", realm=\"192.168.166.199\",
nonce=\"TnuaJ057mPskvCOYDgyAURuuottiYy7cIAQKLUA=\",
cnonce=\"4VwQFl/7Ei+IWecbrZ9rug\", algorithm=MD5,
uri=\"sip:192.168.166.199\",
response=\"45b23bc0e48592fb57b1ebc87f0e3dbc\""..., str_val = {
        s = 0x829a9a2 "3022\", realm=\"192.168.166.199\",
nonce=\"TnuaJ057mPskvCOYDgyAURuuottiYy7cIAQKLUA=\",
cnonce=\"4VwQFl/7Ei+IWecbrZ9rug\", algorithm=MD5,
uri=\"sip:192.168.166.199\",
response=\"45b23bc0e48592fb57b1ebc87f0e3dbc\""..., len = 4},
blob_val = {
        s = 0x829a9a2 "3022\", realm=\"192.168.166.199\",
nonce=\"TnuaJ057mPskvCOYDgyAURuuottiYy7cIAQKLUA=\",
cnonce=\"4VwQFl/7Ei+IWecbrZ9rug\", algorithm=MD5,
uri=\"sip:192.168.166.199\",
response=\"45b23bc0e48592fb57b1ebc87f0e3dbc\""..., len = 4},
bitmap_val = 136948130}}, {type = DB1_STR, nul = 0, free = 8200,
    val = {int_val = 137215560, ll_val = 64561725000, double_val
= 3.1897730358749953e-313, time_val = 137215560, string_val =
0x82dbe48 "192.168.166.199",
      str_val = {s = 0x82dbe48 "192.168.166.199", len = 15},
blob_val = {s = 0x82dbe48 "192.168.166.199", len = 15},
bitmap_val = 137215560}}}
        result = {s = 0x0, len = 0}
        n = <value optimized out>
        ha1 =
"\000\000\000\000\220GÉ¿\000\000\000\000ï=\000\000ÒBÉ¿L\215á\t\000\000\000\000(Óà\tÔBÉ¿F\000\000\000yv¯\000L\215á\t",
'\0' <repeats 12 times>,
"ÿÿÿÿ\a\000\000\000a{¯\000^{¯\000\000\000\000\000\000\000\000\000ÿÿÿÿ+\000\000\000\000\000\000\000\001\000\000\0008DÉ¿\210\033-\bÈVÉ¿HDÉ¿&\205\017\bÈVÉ¿øø-\b8DÉ¿P\020-\b",
'\0' <repeats 32 times>, "
e¯\000TDÉ¿`ñ\000\000ÐÑ\000\000\\\222¯d\030\000\000\000\000\000\000\000»¬£\000;\216á\t
1±\000\000 \000\000ÔCÉ¿8\216á\t\bÔ\r¶"...
        h = (struct hdr_field *) 0x82e0398
        domain = {s = 0x82dbe48 "192.168.166.199", len = 15}
        table = {s = 0x82d8f60 "subscriber", len = 10}
        result = (db1_res_t *) 0x0
        ret = 0


Best Regards

2011/9/23 Daniel-Constantin Mierla <miconda@gmail.com
<mailto:miconda@gmail.com>>

    Hello,

    can you send the output of 'bt full' from gdb?

    How often the subscriber table is changed? I see in this case
    the deletion of the table is done without a lock.

    Cheers,
    Daniel


    On 9/22/11 9:44 PM, Bruno Bresciani wrote:

...

    Hi All,

    Kamailio 3.1.2 generate a core in db_text module when
    subscriber table is updated and after this action some SIP
    message require authentication process...

    Someone Can Help me to understand why this core is
    happening? Below  is part of kamailio's trace and gdb core too.


    Kamailio's trace:

    *Sep 22 16:35:54 sswpst00
    /home2/local/kamailio/sbin/kamailio[2327]: DEBUG: auth_db
    [authorize.c:239]: realm value [192.168.166.199]*
    Sep 22 16:35:54 sswpst00
    /home2/local/kamailio/sbin/kamailio[2327]: DEBUG: auth
    [api.c:95]: auth: digest-algo: MD5 parsed value: 1
    *Sep 22 16:35:54 sswpst00
    /home2/local/kamailio/sbin/kamailio[2327]: DEBUG: db_text
    [dbt_file.c:78]: [subscriber] was updated*
    Sep 22 16:35:54 sswpst00
    /home2/local/kamailio/sbin/kamailio[2324]: ALERT: <core>
    [main.c:741]: child process 2327 exited by a signal 11
    Sep 22 16:35:54 sswpst00
    /home2/local/kamailio/sbin/kamailio[2324]: ALERT: <core>
    [main.c:744]: core was generated
    Sep 22 16:35:54 sswpst00
    /home2/local/kamailio/sbin/kamailio[2324]: INFO: <core>
    [main.c:756]: INFO: terminating due to SIGCHLD
    Sep 22 16:35:54 sswpst00
    /home2/local/kamailio/sbin/kamailio[2335]: INFO: <core>
    [main.c:807]: INFO: signal 15 received c
    Sep 22 16:35:54 sswpst00
    /home2/local/kamailio/sbin/kamailio[2335]: DEBUG: <core>
    [main.c:818]: Memory status (pkg):

    gdb core trace:

    Core was generated by `/home2/local/kamailio/sbin/kamailio
    -P /var/run/kamailio.pid'.
    Program terminated with signal 11, Segmentation fault.
    *#0  0x00f21603 in dbt_db_del_table (_dc=0xb6071e60,
    _s=0xbf837040, sync=0) at dbt_lib.c:238*
    238     dbt_lib.c: Arquivo ou diretório não encontrado.
            in dbt_lib.c


    Best Regards


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    -- 
    Daniel-Constantin Mierla --http://www.asipto.com
    Kamailio Advanced Training, Oct 10-13, Berlin:http://asipto.com/u/kat
    http://linkedin.com/in/miconda  -- http://twitter.com/miconda




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-- 
Daniel-Constantin Mierla --http://www.asipto.com
Kamailio Advanced Training, Oct 10-13, Berlin:http://asipto.com/u/kat
http://linkedin.com/in/miconda  -- http://twitter.com/miconda

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