### Description
Config file has parameter "shm_mem_size" (or "shm" or "shm_mem") which allows to set shared memory size (in Mb) via configuration file. This parameter worked well in 3.1.5. Now it does not work (4.4.2). Shared memory size is always 64Mb (default value). The only way to set another size is to use "-m" command line option.
#### Reproduction
- Set shm_mem_size=512 in configuration file - Start kamailio and check size of shared memory using "kamcmd core.shmmem" - Expected result: total size of shared memory should be 512 Mb (in bytes) - Actual result: 64Mb
### Possible Solutions
A workaround is to use "-m" command line option to send shared memeory size.
### Additional Information
version: kamailio 4.4.3 (x86_64/linux) 5a2195 flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 5a2195 compiled on 13:41:22 Sep 27 2016 with gcc 4.4.7
OS: CentOS 6.8 (kernel 2.6.32-642.4.2.el6.x86_64)