Hi Daniel,

This modules what we are using:

loadmodule "mi_fifo.so"
loadmodule "kex.so"
loadmodule "corex.so"
loadmodule "tm.so"
loadmodule "tmx.so"
loadmodule "sl.so"
loadmodule "rr.so"
loadmodule "pv.so"
loadmodule "maxfwd.so"
loadmodule "textops.so"
loadmodule "siputils.so"
loadmodule "xlog.so"
loadmodule "sanity.so"
loadmodule "ctl.so"
loadmodule "cfg_rpc.so"
loadmodule "mi_rpc.so"
loadmodule "dispatcher.so"
loadmodule "utils.so"
loadmodule "path.so"
loadmodule "ipops.so"
loadmodule "jansson.so"
loadmodule "auth.so"
loadmodule "nathelper.so"
loadmodule "tls.so"
loadmodule "htable.so"
loadmodule "pike.so"

We have several other Kamailio instances but they are not faced to internet and they do not have such memory issue. That other Kamailio instances have same modules, except modules listed below. So if you think that issue is inside external library, probably we need to check first modules from list below.

loadmodule "ipops.so"
loadmodule "auth.so"
loadmodule "nathelper.so"
loadmodule "pike.so"

But maybe this other Kamailio instances do not have this memory issue, just because they did not face to internet and did not have same load as instances with memory issue.

kamailio -v
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 08:30:51 Sep 15 2016 with gcc 4.4.7

With kind regards,

Jurijs

On Thu, Oct 6, 2016 at 12:52 PM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:

Hello,

it looks like a leak from the system memory, not from kamailio's pkg or shm memory. This can be due to an improper use of an external library (e.g., libxml2) by a kamailio module or because of a problem in the library.

Can you list the modules used in your config (the loadmodule lines)? I will try to guess from the list which one relying on external libs with higher risk of leak issues.

Also, provide the version of kamailio you are using (kamailio -v).

Cheers,
Daniel

On 04/10/16 15:42, Jurijs Ivolga wrote:
Hi,

Our Kamailio server is crashing once per week, with following error:

Oct 1 06:25:06 kamailio kernel: [26982632.803789] Out of memory in UB 210: OOM killed process 12261 (kamailio) score 0 vm:1614768kB, rss:280200kB, swap:131408kB

Core dump was never created, probably it is because of my environment, but I will try to get it.

Server constantly eats memory, maybe some kind of memory leak?

Any help is highly appreciated!

Jurijs
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-- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio Advanced Training, Berlin, Oct 24-26, 2016 - http://www.asipto.com
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