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Hello,<br>
<br>
interesting ... give also the output of:<br>
<br>
p _tbc<br>
p *_tbc<br>
<br>
Cheers,<br>
Daniel<br>
<br>
On 9/23/11 1:27 PM, Bruno Bresciani wrote:
<blockquote
cite="mid:CAKv6MrYk7uYkdETxPmbX4c4SRAj96Xd44PjRp80Ep+YQ69M6NQ@mail.gmail.com"
type="cite">Hello,<br>
<br>
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...<br>
<br>
Follows the output of 'bt full' from gdb:<br>
<br>
Program terminated with signal 11, Segmentation fault.<br>
#0 0x008b3603 in dbt_db_del_table (_dc=0xb60fde60, _s=0xbfc94380,
sync=0) at dbt_lib.c:238<br>
238 dbt_lib.c: Arquivo ou diretório não encontrado.<br>
in dbt_lib.c<br>
(gdb) bt full<br>
#0 0x008b3603 in dbt_db_del_table (_dc=0xb60fde60, _s=0xbfc94380,
sync=0) at dbt_lib.c:238<br>
_tbc = (dbt_table_p) 0xb6175d20<br>
hash = 6<br>
#1 0x008b3f38 in dbt_db_get_table (_dc=0xb60fde60, _s=0xbfc94380)
at dbt_lib.c:300<br>
_tbc = (dbt_table_p) 0xb6175d20<br>
hash = 6<br>
#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<br>
_tbc = <value optimized out><br>
_drp = <value optimized out><br>
_dres = <value optimized out><br>
lkey = <value optimized out><br>
lres = (int *) 0x0<br>
_o_k = (db_key_t *) 0x0<br>
_o_op = 0x0<br>
_o_n = <value optimized out><br>
_o_l = <value optimized out><br>
_o_nc = <value optimized out><br>
#3 0x001ae088 in digest_authenticate (msg=0x82df8f8,
realm=<value optimized out>, tname=<value optimized
out>, hftype=HDR_AUTHORIZATION_T) at authorize.c:98<br>
cred = <value optimized out><br>
keys = {0x1b14c8, 0x1b14d0}<br>
vals = {{type = DB1_STR, nul = 0, free = 165777064, val =
{int_val = 136948130, ll_val = 17316817314, double_val =
8.5556445301562903e-314,<br>
time_val = 136948130,<br>
string_val = 0x829a9a2 "3022\", realm=\"192.168.166.199\",
nonce=\"TnuaJ057mPskvCOYDgyAURuuottiYy7cIAQKLUA=\",
cnonce=\"4VwQFl/7Ei+IWecbrZ9rug\", algorithm=MD5,
uri=\<a class="moz-txt-link-rfc2396E" href="sip:192.168.166.199\">"sip:192.168.166.199\"</a>,
response=\"45b23bc0e48592fb57b1ebc87f0e3dbc\""..., str_val = {<br>
s = 0x829a9a2 "3022\", realm=\"192.168.166.199\",
nonce=\"TnuaJ057mPskvCOYDgyAURuuottiYy7cIAQKLUA=\",
cnonce=\"4VwQFl/7Ei+IWecbrZ9rug\", algorithm=MD5,
uri=\<a class="moz-txt-link-rfc2396E" href="sip:192.168.166.199\">"sip:192.168.166.199\"</a>,
response=\"45b23bc0e48592fb57b1ebc87f0e3dbc\""..., len = 4},
blob_val = {<br>
s = 0x829a9a2 "3022\", realm=\"192.168.166.199\",
nonce=\"TnuaJ057mPskvCOYDgyAURuuottiYy7cIAQKLUA=\",
cnonce=\"4VwQFl/7Ei+IWecbrZ9rug\", algorithm=MD5,
uri=\<a class="moz-txt-link-rfc2396E" href="sip:192.168.166.199\">"sip:192.168.166.199\"</a>,
response=\"45b23bc0e48592fb57b1ebc87f0e3dbc\""..., len = 4},
bitmap_val = 136948130}}, {type = DB1_STR, nul = 0, free = 8200,<br>
val = {int_val = 137215560, ll_val = 64561725000, double_val =
3.1897730358749953e-313, time_val = 137215560, string_val =
0x82dbe48 "192.168.166.199",<br>
str_val = {s = 0x82dbe48 "192.168.166.199", len = 15},
blob_val = {s = 0x82dbe48 "192.168.166.199", len = 15}, bitmap_val
= 137215560}}}<br>
result = {s = 0x0, len = 0}<br>
n = <value optimized out><br>
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¶"...<br>
h = (struct hdr_field *) 0x82e0398<br>
domain = {s = 0x82dbe48 "192.168.166.199", len = 15}<br>
table = {s = 0x82d8f60 "subscriber", len = 10}<br>
result = (db1_res_t *) 0x0<br>
ret = 0<br>
<br>
<br>
Best Regards<br>
<br>
<div class="gmail_quote">2011/9/23 Daniel-Constantin Mierla <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:miconda@gmail.com">miconda@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">
<div bgcolor="#FFFFFF" text="#000000"> Hello,<br>
<br>
can you send the output of 'bt full' from gdb?<br>
<br>
How often the subscriber table is changed? I see in this
case the deletion of the table is done without a lock.<br>
<br>
Cheers,<br>
Daniel
<div>
<div class="h5"><br>
<br>
On 9/22/11 9:44 PM, Bruno Bresciani wrote: </div>
</div>
<blockquote type="cite">
<div>
<div class="h5">Hi All,<br>
<br>
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...<br>
<br>
Someone Can Help me to understand why this core is
happening? Below is part of kamailio's trace and gdb
core too.<br>
<br>
<br>
Kamailio's trace:<br>
<br>
<b>Sep 22 16:35:54 sswpst00
/home2/local/kamailio/sbin/kamailio[2327]: DEBUG:
auth_db [authorize.c:239]: realm value
[192.168.166.199]</b><br>
Sep 22 16:35:54 sswpst00
/home2/local/kamailio/sbin/kamailio[2327]: DEBUG: auth
[api.c:95]: auth: digest-algo: MD5 parsed value: 1<br>
<b>Sep 22 16:35:54 sswpst00
/home2/local/kamailio/sbin/kamailio[2327]: DEBUG:
db_text [dbt_file.c:78]: [subscriber] was updated</b><br>
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<br>
Sep 22 16:35:54 sswpst00
/home2/local/kamailio/sbin/kamailio[2324]: ALERT:
<core> [main.c:744]: core was generated<br>
Sep 22 16:35:54 sswpst00
/home2/local/kamailio/sbin/kamailio[2324]: INFO:
<core> [main.c:756]: INFO: terminating due to
SIGCHLD<br>
Sep 22 16:35:54 sswpst00
/home2/local/kamailio/sbin/kamailio[2335]: INFO:
<core> [main.c:807]: INFO: signal 15 received c<br>
Sep 22 16:35:54 sswpst00
/home2/local/kamailio/sbin/kamailio[2335]: DEBUG:
<core> [main.c:818]: Memory status (pkg):<br>
<br>
gdb core trace:<br>
<br>
Core was generated by
`/home2/local/kamailio/sbin/kamailio -P
/var/run/kamailio.pid'.<br>
Program terminated with signal 11, Segmentation fault.<br>
<b>#0 0x00f21603 in dbt_db_del_table (_dc=0xb6071e60,
_s=0xbf837040, sync=0) at dbt_lib.c:238</b><br>
238 dbt_lib.c: Arquivo ou diretório não
encontrado.<br>
in dbt_lib.c<br>
<br>
<br>
Best Regards<br>
<br>
<fieldset></fieldset>
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<pre cols="72">--
Daniel-Constantin Mierla -- <a moz-do-not-send="true" href="http://www.asipto.com" target="_blank">http://www.asipto.com</a>
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<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla -- <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a>
Kamailio Advanced Training, Oct 10-13, Berlin: <a class="moz-txt-link-freetext" href="http://asipto.com/u/kat">http://asipto.com/u/kat</a>
<a class="moz-txt-link-freetext" href="http://linkedin.com/in/miconda">http://linkedin.com/in/miconda</a> -- <a class="moz-txt-link-freetext" href="http://twitter.com/miconda">http://twitter.com/miconda</a></pre>
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