forgot dtls during build process? about rtpengine HOT 6 CLOSED

(gdb) bt full
#0  dtls_shutdown (ps=0x2147c40) at dtls.c:675
        d = 0xc0
        sin = {sin6_family = 4, sin6_port = 0, sin6_flowinfo = 0, sin6_addr = {__in6_u = {__u6_addr8 =     "@", '\000' <repeats 14 times>, __u6_addr16 = {64, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {64, 0, 0, 0}}}, sin6_scope_id = 4060118833}
#1  0x0000000000000004 in ?? ()
No symbol table info available.
#2  0x0000000000000040 in ?? ()
No symbol table info available.
#3  0x0000000000000000 in ?? ()
No symbol table info available.
(gdb) 

GNU gdb (GDB) 7.4.1-debian
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
gdb /usr/lib/debug/usr/sbin/rtpengine /core
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/lib/debug/usr/sbin/rtpengine...done.
[New LWP 11937]
[New LWP 11934]
[New LWP 11938]
[New LWP 11928]
[New LWP 11930]
[New LWP 11939]
[New LWP 11936]
[New LWP 11926]
[New LWP 11931]
[New LWP 11923]
[New LWP 11924]
[New LWP 11933]
[New LWP 11927]
[New LWP 11932]
[New LWP 11935]
warning: Can't read pathname for load map: Input/output error.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/sbin/rtpengine --interface=212.9.44.243 --listen-udp=212.9.44.243:9000 --l'.
Program terminated with signal 11, Segmentation fault.
#0  dtls_shutdown (ps=0x2147c40) at dtls.c:675
675 dtls.c: No such file or directory.
(gdb) thread apply all bt

Thread 15 (Thread 0x7f8ae8ee3700 (LWP 11935)):
#0  0x00007f8aeff83e13 in epoll_wait () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000000000040df8b in poller_poll (p=0x1fa36b0, timeout=100) at poller.c:308
#2  0x0000000000000000 in ?? ()

Thread 14 (Thread 0x7f8aea6e6700 (LWP 11932)):
#0  0x00007f8aeff83e13 in epoll_wait () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000000000040df8b in poller_poll (p=0x1fa36b0, timeout=100) at poller.c:308
#2  0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7f8aec6ea700 (LWP 11927)):
#0  0x00007f8aeff83e13 in epoll_wait () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000000000040df8b in poller_poll (p=0x1fa36b0, timeout=100) at poller.c:308
#2  0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7f8ae9ee5700 (LWP 11933)):
#0  0x00007f8aeff83e13 in epoll_wait () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000000000040df8b in poller_poll (p=0x1fa36b0, timeout=100) at poller.c:308
#2  0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f8aed6ec700 (LWP 11924)):
#0  0x00007f8aefed9e8b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f8aefed9f33 in sigtimedwait () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00000000004086eb in sighandler (x=<optimized out>) at main.c:123
#3  0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f8af293c720 (LWP 11923)):
#0  0x00007f8aeff532bd in nanosleep () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f8aeff7d9d4 in usleep () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00000000004083f2 in main (argc=1, argv=0x7fff4a698ff8) at main.c:654

Thread 9 (Thread 0x7f8aeaee7700 (LWP 11931)):
#0  0x00007f8aeff83e13 in epoll_wait () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000000000040df8b in poller_poll (p=0x1fa36b0, timeout=100) at poller.c:308
#2  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f8aeceeb700 (LWP 11926)):
#0  0x00007f8af023d8a3 in pthread_rwlock_rdlock () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00000000004109c5 in call_timer_iterator (key=<optimized out>, val=0x20bb480, ptr=0x7f8aece6ae10) at call.c:1017
#2  0x0000000001fc3330 in ?? ()
#3  0x000000000200da80 in ?? ()
#4  0x00000000020bb4e0 in ?? ()
#5  0x0000000001fa6800 in ?? ()
#6  0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f8ae3fff700 (LWP 11936)):
#0  0x00007f8af023d8a3 in pthread_rwlock_rdlock () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00000000004151cc in stream_packet (dst=0x0, fsin=0x7f8ae3ffc380, s=0x7f8ae3ffc2b0, sfd=0x207b5d0) at call.c:599
#2  stream_fd_readable (fd=<optimized out>, p=0x207b5d0, u=<optimized out>) at call.c:936
#3  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f8ae27fc700 (LWP 11939)):
#0  0x00007f8aeff83e13 in epoll_wait () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000000000040df8b in poller_poll (p=0x1fa36b0, timeout=100) at poller.c:308
#2  0x0000000000000000 in ?? ()
---Type <return> to continue, or q <return> to quit---

Thread 5 (Thread 0x7f8aeb6e8700 (LWP 11930)):
#0  0x00007f8aeff83e13 in epoll_wait () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000000000040df8b in poller_poll (p=0x1fa36b0, timeout=100) at poller.c:308
#2  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f8aebee9700 (LWP 11928)):
#0  0x00007f8aeff83e13 in epoll_wait () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000000000040df8b in poller_poll (p=0x1fa36b0, timeout=100) at poller.c:308
#2  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f8ae2ffd700 (LWP 11938)):
#0  0x00007f8af023d8a3 in pthread_rwlock_rdlock () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00000000004151cc in stream_packet (dst=0x0, fsin=0x7f8ae2ffa380, s=0x7f8ae2ffa2b0, sfd=0x207b5d0) at call.c:599
#2  stream_fd_readable (fd=<optimized out>, p=0x207b5d0, u=<optimized out>) at call.c:936
#3  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f8ae96e4700 (LWP 11934)):
#0  0x00007f8aeff83e13 in epoll_wait () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000000000040df8b in poller_poll (p=0x1fa36b0, timeout=100) at poller.c:308
#2  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f8ae37fe700 (LWP 11937)):
#0  dtls_shutdown (ps=0x2147c40) at dtls.c:675
#1  0x0000000000000004 in ?? ()
#2  0x0000000000000040 in ?? ()
#3  0x0000000000000000 in ?? ()
(gdb) 
(gdb) 
(gdb)