Hi,
I just installed the head version from git.

version: opensips 2.4.0-dev (x86_64/linux)
flags: STATS: On, SHM_EXTRA_STATS, EXTRA_DEBUG, DISABLE_NAGLE, USE_MCAST, SHM_MMAP, PKG_MALLOC, QM_MALLOC, DBG_MALLOC, FAST_LOCK-ADAPTIVE_WAIT
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
git revision: d1a4419
main.c compiled on 19:53:20 Nov 28 2017 with gcc 4.8

It was compiled with EXTRA_DEBUG and DBG_TCPCON flags;
While starting opensips with the residential vanilla script it gives following error:

Nov 28 20:05:52 [30899] ERROR:core:tcp_init: oom con hist
Nov 28 20:05:52 [30899] CRITICAL:core:main: could not initialize tcp
Nov 28 20:05:52 [30899] INFO:core:cleanup: cleanup
Nov 28 20:05:52 [30899] DBG:core:shm_mem_destroy: destroying the shared memory lock
Nov 28 20:05:52 [30899] NOTICE:core:main: Exiting....
 already running                                                                           

Even if I remove the proto_tcp, and tcp related things this still gives error and doesn't start.

Kindly help.

Regards,
Sammy