2011/10/3 Daniel-Constantin Mierla <miconda@gmail.com>

Hello,

On 10/3/11 7:17 PM, Bruno Bresciani wrote:
Hello,

I wrote a if condition below this line to know where dtp->prev was being initialized.

ok, you didn't say and it didn't match the sources.

Hopefully the issue is fixed, you have to upgrade to latest git branch 3.1 to get the fix:

http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=c54b89a3a840e032a2a8abc5842b3ea78fa537ba

Some guidelines how to install from git are provided at:

http://www.kamailio.org/dokuwiki/doku.php/install:kamailio-3.1.x-from-git

Cheers,
Daniel
dtp = (dbt_table_p)shm_malloc(sizeof(dbt_table_t));
if (dtp->prev){
LM_DBG("dtp->prev was initialized")
}

Analysing the trace of kamailio, the condition is true only to subscriber table. I can't get understand this behavior only subscriber table because to others tables (location, dispatcher and version) the condition is false.

PS: I'm doing this analysis to understand the core generated in db_text module described in the previous e-mails.

Best Regards
2011/10/3 Daniel-Constantin Mierla <miconda@gmail.com>
Hello,

the latest 3.1 branch as in db_text/dbt_tb.c following line:

dtp = (dbt_table_p)shm_malloc(sizeof(dbt_table_t));

Where is the line you refer to dpt->prev? Can you copy&paste it here.

Cheers,
Daniel

On 10/3/11 2:20 PM, Bruno Bresciani wrote:
Hello ALL,

Someone knows why at line 149 in .../kamailio-3.1.2/modules_k/
db_text/dbt_tb.c the shm_malloc function sometimes allocates memory to dtp->prev but sometimes doesn't?
I'm asking this question because when the subscriber table is being loading to shared memory in db_text module, dtp->prev is allocated but on version, dispatcher, location table it doesn't... Analysing the source code I can't see any reason to this behavior.

The allocation of dtp->prev to subscriber table is generating a core at db_text module.

Best Regards
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-- Daniel-Constantin Mierla -- http://www.asipto.com Kamailio Advanced Training, Dec 5-8, Berlin: http://asipto.com/u/kat http://linkedin.com/in/miconda -- http://twitter.com/miconda
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
-- 
Daniel-Constantin Mierla -- http://www.asipto.com
Kamailio Advanced Training, Dec 5-8, Berlin: http://asipto.com/u/kat
http://linkedin.com/in/miconda -- http://twitter.com/miconda