Multiple segfaults in ocserv

[Роман Петров]

Hi, Team!

I installed ocserv 0.11.7 from the sources on Ubuntu 16.04.2.
Many users experience frequent connection breaks.
>From time to time the ocserv process stops its work with messages in dmesg:

[Mon Mar 13 12:29:21 2017] ocserv-main[25025]: segfault at 0 ip
   (null) sp 00007ffc217f6278 error 14 in ocserv[5562c98f7000+5a000]
[Mon Mar 13 13:04:25 2017] ocserv-main[10167]: segfault at 14c ip
00007efbfae90605 sp 00007ffcc6040090 error 4 in
libev.so.4.0.0[7efbfae8c000+d000]
[Mon Mar 13 13:29:07 2017] ocserv-main[11831]: segfault at
400073332585 ip 00007f46be6e8605 sp 00007fff7df368f0 error 4 in
libev.so.4.0.0[7f46be6e4000+d000]
[Mon Mar 13 14:49:22 2017] ocserv-main[13057]: segfault at
558396edae98 ip 00007fd92986c50c sp 00007ffdc4787a00 error 6 in
libev.so.4.0.0[7fd929868000+d000]
[Mon Mar 13 15:19:56 2017] ocserv-main[15949]: segfault at 0 ip
   (null) sp 00007ffd489836b8 error 14 in ocserv[563038c32000+5a000]
[Mon Mar 13 15:33:47 2017] traps: ocserv-main[29795] general
protection ip:7f9e5f45a605 sp:7fff2e788f40 error:0 in
libev.so.4.0.0[7f9e5f456000+d000]
[Mon Mar 13 15:38:48 2017] ocserv-main[30550]: segfault at
4000d5bf8893 ip 00004000d5bf8893 sp 00007ffe01a33e88 error 14 in
ocserv[560bf3a18000+5a000]
[Mon Mar 13 16:00:00 2017] ocserv-main[31153]: segfault at 54 ip
00007f25b92e8605 sp 00007fff8191e220 error 4 in
libev.so.4.0.0[7f25b92e4000+d000]
[Mon Mar 13 16:16:30 2017] ocserv-main[32447]: segfault at
55dc1564c728 ip 00007f62700dd50c sp 00007fff3eb05230 error 6 in
libev.so.4.0.0[7f62700d9000+d000]
[Tue Mar 14 11:19:27 2017] ocserv-main[17728]: segfault at 4c ip
00007ff1adba6605 sp 00007ffd4d5bf130 error 4 in
libev.so.4.0.0[7ff1adba2000+d000]

I recompiled the ocserv with all built-in libraries, but...

[Thu Mar 16 20:02:04 2017] ocserv-main[29008]: segfault at
7f06da274be8 ip 00007f06da274be8 sp 00007ffebeccfac8 error 15 in
libc-2.23.so[7f06da274000+2000]

My ocserv.conf in attach.

Please, help...