Hi Daniel,  hi Guys,

I did not stress test it, I only had one registered device (which sent the INVITE) , and another one was supposed to register after some event triggered by kamailio via a http query (using the utils module) - that's

the reason I parked the transaction with "t_suspend()" .

When the REGISTER for the second device comes I send the INVITE to the it .( lookup() , t_relay() ) . This is a scenario that works for me. I could say I tested 10 times and 1 time crashed.

I plan to stress test these days, let me know if I should get some information for you while doing it.

Regards,

Dragos

---

From: Daniel-Constantin Mierla <miconda@gmail.com>
To: Dragos Oancea <droancea@yahoo.com>; Kamailio (SER) - Development Mailing List <sr-dev@lists.sip-router.org>
Sent: Thursday, April 4, 2013 8:53 PM
Subject: Re: [sr-dev] segfault with t_suspend() / t_continue()

Hello,

at first sight looks like a missing safety check, but I may be wrong after a long day. I need to look a bit deeper at it.

Did you stress test it or was just casual trying? You said it happened one, couldn't be reproduced, right?

Cheers,
Daniel

On 4/4/13 8:28 PM, Dragos Oancea wrote:

Hi Daniel,

Here is the output of `bt full`:

http://pastebin.com/tnrWML3L

Let me know if I can be of any assistance further.

Regards,

Dragos

---

From: Daniel-Constantin Mierla <miconda@gmail.com>
To: Dragos Oancea <droancea@yahoo.com>; Kamailio (SER) - Development Mailing List <sr-dev@lists.sip-router.org>
Sent: Thursday, April 4, 2013 7:28 PM
Subject: Re: [sr-dev] segfault with t_suspend() / t_continue()

Hello,

could be related, but the issue seems to be while processing a SIP reply, not with suspend/continue of a request. Can you send the output of 'bt full'?

Cheers,
Daniel

On 4/4/13 6:56 PM, Dragos Oancea wrote:

Hello,

I got the following coredump while doing some testing with t_suspend() and t_continue() on the first INVITE:

(gdb) bt

#0  qm_detach_free (qm=0x7fe2dae65000, size=16) at mem/q_malloc.c:269

#1  qm_malloc (qm=0x7fe2dae65000, size=16) at mem/q_malloc.c:386

#2  0x00007fe2e5e6d541 in update_totag_set (t=0x7fe2db0f42d0, ok=<value optimized out>) at t_reply.c:372

#3  0x00007fe2e5e72387 in relay_reply (t=<value optimized out>, p_msg=<value optimized out>, branch=2, msg_status=200, cancel_data=0x7fff63fdf9b0, do_put_on_wait=1) at t_reply.c:1854

#4  0x00007fe2e5e733e6 in reply_received (p_msg=0x7fe2e6a55ba0) at t_reply.c:2370

#5  0x00000000004547f5 in do_forward_reply (msg=0x7fe2e6a55ba0, mode=<value optimized out>) at forward.c:799

#6  0x000000000049a5ba in receive_msg (buf=<value optimized out>, len=961, rcv_info=0x7fff63fdfc40) at receive.c:270

#7  0x00000000005281a6 in udp_rcv_loop () at udp_server.c:544

#8  0x0000000000464d3a in main_loop () at main.c:1638

#9  0x0000000000467a6c in main (argc=<value optimized out>, argv=<value optimized out>) at main.c:2566

I suspend the transaction in one route and then I continue it in another route, similar to below:

route[INVITE]

#  Suspend and put to memcache:

t_suspend();

        xlog("proceesing suspended in transaction [$T(id_index):$T(id_label)]\n");

        $var(transaction_index)=$T(id_index);

        $var(transaction_label)=$T(id_label);

        

        $mct(wait_$tU)= "" + $var(transaction_index) + ":" + $var(transaction_label);

        $mctex(wait_$tU) = 100;

}

route[INVITE_resume]   {

# get the transaction index and lable from memcache 

    $avp(check) = $mct(wait_$tU) ; # I should have the transaction index and the transaction label here 

    $var(my_transaction_index) =  $(avp(check){s.select,0,:});

    $var(my_transaction_label) =  $(avp(check){s.select,1,:});

    $var(a)= $(var(my_transaction_index){s.int});

    $var(b) = $(var(my_transaction_label){s.int});

    t_continue( "$var(a)",  "$var(b)" , "my_relay_route");

}

 

route[INVITE_resume] executes only on an asynchronous event (a certain SIP message that might come or not) . 

I use kamailio 4.0.0/Centos Linux. I suspect it happened when I sent CANCEL, but I could not reproduce. I still have the core file.

Regards,

Dragos

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-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference, April 16-17, 2013, Berlin
 - http://conference.kamailio.com -

-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference, April 16-17, 2013, Berlin
 - http://conference.kamailio.com -

-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference, April 16-17, 2013, Berlin
 - http://conference.kamailio.com -