[sr-dev] segfault with t_suspend() / t_continue()

[Daniel-Constantin Mierla]

t_suspend()/t_continue() are not designed for sip replies in 4.0.x. You 
have some patches to extend that in devel version.

Cheers,
Daniel

On 4/4/13 8:40 PM, Jason Penton wrote:
> Hey Guys,
>
> yes we can confirm that we also got crashes when trying to use 
> suspend/resume in reply processing.
>
> Cheers
> Jason
>
>
> On Thu, Apr 4, 2013 at 8:28 PM, Dragos Oancea <droancea at yahoo.com 
> <mailto:droancea at yahoo.com>> 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 at gmail.com
>     <mailto:miconda at gmail.com>>
>     *To:* Dragos Oancea <droancea at yahoo.com
>     <mailto:droancea at yahoo.com>>; Kamailio (SER) - Development Mailing
>     List <sr-dev at lists.sip-router.org
>     <mailto:sr-dev at 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 <http://s.int>});
>>      $var(b) = $(var(my_transaction_label){s.int <http://s.int>});
>>
>>      t_continue( "$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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>>     sr-dev at lists.sip-router.org  <mailto:sr-dev at lists.sip-router.org>
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>
>     -- 
>     Daniel-Constantin Mierla -http://www.asipto.com
>     http://twitter.com/#!/miconda  <http://twitter.com/#%21/miconda>  -http://www.linkedin.com/in/miconda
>     Kamailio World Conference, April 16-17, 2013, Berlin
>       -http://conference.kamailio.com  -
>
>
>
>
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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 -

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