No subject

exchange sends periodically to check if a gateway is up.  

 here is gdb bt output:
Core was generated by `/usr/sbin/asterisk -f -U asterisk -G asterisk -vvvg
-c'.
Program terminated with signal 11, Segmentation fault.
https://issues.asterisk.org/view.php?id=0  0x02ea0710 in find_call
(req=0x1eb9f40, sin=0x9c802c0,
intended_method=3) at chan_sip.c:6091
6091                    if (ast_strlen_zero(p->callid))
(gdb) bt
https://issues.asterisk.org/view.php?id=0  0x02ea0710 in find_call
(req=0x1eb9f40, sin=0x9c802c0,
intended_method=3) at chan_sip.c:6091
https://issues.asterisk.org/view.php?id=1  0x02ee08a5 in handle_request_do
(req=0x1eb9f40, sin=0x9c802c0) at
chan_sip.c:18920
https://issues.asterisk.org/view.php?id=2  0x02e8dbb8 in _sip_tcp_helper_thread
(pvt=0x0,
tcptls_session=0x9c802b0) at chan_sip.c:2286
https://issues.asterisk.org/view.php?id=3  0x02e8d477 in sip_tcp_worker_fn
(data=0x9c802b0) at chan_sip.c:2206
https://issues.asterisk.org/view.php?id=4  0x08143b43 in ast_make_file_from_fd
(data=0x9c802b0) at tcptls.c:471
https://issues.asterisk.org/view.php?id=5  0x0814fe84 in dummy_start
(data=0x9c7a5e0) at utils.c:861
https://issues.asterisk.org/view.php?id=6  0x0046a45b in start_thread () from
/lib/libpthread.so.0
https://issues.asterisk.org/view.php?id=7  0x003c224e in clone () from
/lib/libc.so.6

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Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2009-06-01 08:38 file           Resolution               open => no change
required
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