[Serusers] Re: Fwd: SER Crash Issues

[Klaus Darilion]

Hi Girish!

Please send all emails to the list.

I have not tried IVR yet, nor I'm a programmer and experienced in 
debugging - so my advices are very basic.

As ser crashes not immediately, maybe this is a memory problem. Try to 
comment some parts of your module to find out the statements which makes 
ser crash.

regards,
klaus


GR S wrote:
> Note: forwarded message attached.
> 
> Klaus,
> 
> I posted this mail to the SER dev list yesterday and did not get reply for that. So i am
> sending this to you off list. Could you please take a look at this and tell what is going
> wrong? I diagnosed it further and found that SER crashes because of SIGSEGV when we
> modify the uri. Any help in this regard would greately be appreciated.
> 
> Regards,
> 
> =====
> Girish Gopinath  <gr_sh2003 at yahoo.com>
> 
> 
> 	
> 		
> __________________________________
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> 
> ------------------------------------------------------------------------
> 
> Subject:
> SER Crash Issues
> From:
> GR S <gr_sh2003 at yahoo.com>
> Date:
> Tue, 1 Jun 2004 06:00:40 -0700 (PDT)
> To:
> serdev at lists.iptel.org
> 
> To:
> serdev at lists.iptel.org
> 
> 
> Hello All,
> 
> We have a system running SER and Asterisk together. SER on 5060 and Asterisk on 6060. The
> role of Asterisk is here to play the ivr messages. The calls land on SER and it gets the
> appropriate context from a module and t_relays it to Asterisk. This is working fine, but
> we experience crashes with SER after every 20-30 attempts. Our efforts to figure out the
> problem were not succeeded. I am attaching herewith relevent parts of my ser.cfg file,
> and the routine from the module that queries for the appropriate site context. Can anyone
> please verify the code and tell where the problem is? Any help on this regard would
> greately be appreciated. 
> 
> This is from ser.cfg file:
> 
> modparam ("ivrtest", "db_url", "mysql://ser:heslo@localhost/ser")
> modparam ("ivrtest", "proxy_domain", "192.168.68.20")
> modparam ("ivrtest", "media_server", "192.168.68.20:6060")
> 
> if ( method == "INVITE") {
> 	sl_send_reply("100", "Trying");
> 	log(1,"Processsing call 1\n");
> 
> 	if (uri =~ "sip:[0-9]{10}@*"){
> 		if (! get_ivr_context("1")) {
> 			sl_send_reply ("404", "Not Found");
> 			drop ();
> 			break;
> 		}
> 		t_relay();
> 		log(1, "Context Relayed\n");
> 		break;
> 	}
> }
> ---------------------------------------------------------------------------
> 
> This is the routine from the module that serves the request for ivr context:
> 
> int get_ivr_context (struct sip_msg *msg, char *p1, char *p2)
> {
> 	str uri, strval;
> 	char tollfree [15], newuri [60], sqlcommand [150];
> 	db_res_t *res;
> 	db_row_t row;
> 
> 	uri = msg->first_line.u.request.uri;
> 
> 	/* Expected toll free:- "sip:12345678900 at blah..." */
> 	
> 	memset  (tollfree, 0x00, 15);
> 	strncpy (tollfree, uri.s+4, 11);
> 	
> 	strval.s = malloc(strlen(tollfree) + 1 );
> 	strcpy(strval.s, tollfree);
> 	strval.len = strlen(strval.s);
> 
> 	memset (sqlcommand, 0x00, 150);
> 	sprintf (sqlcommand, "SELECT sitename FROM siteinfo, pbxivr WHERE siteinfo.siteid =
> pbxivr.siteid AND pbxivr.tollfreenum = '%s'", tollfree);
> 
> #if 0
> 	fprintf(stderr, "Q: %s\n", sqlcommand);
> #endif
> 
> 	db_raw_query (h, sqlcommand, &res);
> 	if (RES_ROW_N (res) < 1)	return -1;
> 
> 	row = RES_ROWS (res)[0];
> 	if (! res || ! row.values) 
> 	{
> 		db_free_query(h, res);
> 		return -1;
> 	} 
> 	else 
> 	{
> 		/* New URI: "sip:sitename at 192.168.68.20:6060"*/
> 		memset  (newuri, 0x00, 60);
> 		sprintf (newuri, "sip:%s@%s", row.values[0].val.string_val, media_server);
> 
> 		uri.s = malloc (strlen (newuri)+1);
> 		bzero (uri.s,strlen (newuri)+1);
> 		strncpy (uri.s, newuri, strlen (newuri));
> 		uri.len = strlen (newuri);
> 		msg->parsed_uri_ok = 1;
> 		set_uri (msg, uri);
> 		
> 	}
> 
> 	if (db_free_query(h, res) < 0) return -1;
> 	return 1;
> }
> 
> TIA,
> 
> =====
> Girish Gopinath  <gr_sh2003 at yahoo.com>
> 
> 
> 	
> 		
> __________________________________
> Do you Yahoo!?
> Friends.  Fun.  Try the all-new Yahoo! Messenger.
> http://messenger.yahoo.com/