[OpenSIPS-Users] B2BUA Segfault

[Bogdan-Andrei Iancu]

Hello Tolga,

The crash seems to be in the memory manager, most probably because of
memory corruption. To troubleshoot such issues you need to compile-in
the memory debugger - see
http://www.opensips.org/Documentation/TroubleShooting-OutOfMem .

Using memlog=1 + memdump=10 you should get a lot of logs related to mem
ops, including a final report + abort() when the corruption is detected.

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com


On 05/22/2013 01:29 AM, Tolga Tarhan wrote:
> Hello,
>
> While using the B2BUA module in OpenSIPS 1.9.0, we've encountered a
> consistent segfault. We are using a refer scenario just like the one
> in the B2BUA sample docs, and after several REFERs for the same call
> (to different destinations), OpenSIPS crashes with a segfault. The
> core file indicates the following backtrace:
>
> #0  0x000000000049a334 in fm_malloc ()
> #1  0x00007fdaecd96230 in shm_malloc_unsafe (type=B2B_CLIENT,
> entity_id=0x7fdaee8ec750, to_uri=0x7fff2d346360,
> from_uri=0x7fff2d346320, from_dname=0x0, ssid=<value optimized out>,
> msg=0x0) at ../../mem/shm_mem.h:248
> #2  shm_malloc (type=B2B_CLIENT, entity_id=0x7fdaee8ec750,
> to_uri=0x7fff2d346360, from_uri=0x7fff2d346320, from_dname=0x0,
> ssid=<value optimized out>, msg=0x0) at ../../mem/shm_mem.h:258
> #3  b2bl_create_new_entity (type=B2B_CLIENT, entity_id=0x7fdaee8ec750,
> to_uri=0x7fff2d346360, from_uri=0x7fff2d346320, from_dname=0x0,
> ssid=<value optimized out>, msg=0x0) at logic.c:293
> #4  0x00007fdaecd96882 in b2bl_new_client (to_uri=<value optimized
> out>, from_uri=<value optimized out>, tuple=<value optimized out>,
> ssid=0x7fdaeb026c00, msg=<value optimized out>) at logic.c:607
> #5  0x00007fdaecda3579 in process_bridge_200OK (msg=0x7fdaee8e8b30,
> extra_headers=0x7fdaeb03d578, body=<value optimized out>,
> tuple=0x7fdaeb01ada8, entity=<value optimized out>) at logic.c:816
> #6  0x00007fdaecda46c2 in b2b_logic_notify_reply (src=<value optimized
> out>, msg=0x7fdaee8e8b30, key=<value optimized out>,
> body=0x7fff2d3468b0, extra_headers=0x7fff2d3468a0,
> b2bl_key=0x7fff2d3476d0, hash_index=649, local_index=0)
>     at logic.c:1133
> #7  0x00007fdaecda6081 in b2b_logic_notify (src=1, msg=0x7fdaee8e8b30,
> key=0x7fdaeb03d500, type=1, param=0x7fff2d3476d0) at logic.c:2040
> #8  0x00007fdaecfca7ad in b2b_tm_cback (t=0x7fdaeb054118,
> htable=0x7fdaeb014630, ps=<value optimized out>) at dlg.c:2678
> #9  0x00007fdaee291441 in run_trans_callbacks (type=256,
> trans=0x7fdaeb054118, req=<value optimized out>, rpl=<value optimized
> out>, code=<value optimized out>) at t_hooks.c:212
> #10 0x00007fdaee29c0e2 in local_reply (t=0x7fdaeb054118, p_msg=<value
> optimized out>, branch=<value optimized out>, msg_status=<value
> optimized out>, cancel_bitmap=<value optimized out>) at t_reply.c:1391
> #11 0x00007fdaee29d31d in reply_received (p_msg=0x7fdaee8e8b30) at
> t_reply.c:1540
> #12 0x000000000042625a in forward_reply ()
> #13 0x0000000000451c28 in receive_msg ()
> #14 0x0000000000494e45 in udp_rcv_loop ()
> #15 0x000000000042d1a3 in main ()
>
> I'm not really sure how to diagnose this one. Any
> hints/fixes/suggestions would be very appreciated.
>
> Thanks,
> Tolga
>
>
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