You are receiving this because you are subscribed to this thread.
Reply to this email directly, view it on GitHub, or unsubscribe.
Triage notifications on the go with GitHub Mobile for iOS or Android.
I found a memory leak which is causing some issues for us in our production. I think I was able to reproduce it and determine that this is happening when we set up an MSRP connection, and that connection is closed due to inactivity (for example when tcp_connection_lifetime is triggered).
This issue is the same one than #2875 but with latest supported Kamailio version.
In this environment we have a WebRTC SIP client, connected to Kamailio and a second party using SIP, both sending messages each via MSRP protocol. Web Client and SIP client establish a session normally, all fine here, they can communicate. At this point we have this status:
TESTER|centos8.4|tester21 [2021-10-11][12:49:24] [/home/vagrant]$ sudo netstat -natp | grep 10.22.22
tcp 0 0 10.22.22.21:5060 0.0.0.0:* LISTEN 14714/kamailio
tcp 0 0 10.22.22.21:10000 0.0.0.0:* LISTEN 14714/kamailio
tcp 0 0 10.22.22.21:8080 0.0.0.0:* LISTEN 14714/kamailio
tcp 0 0 10.22.22.21:10001 0.0.0.0:* LISTEN 14714/kamailio
tcp 0 0 10.22.22.21:10002 0.0.0.0:* LISTEN 14714/kamailio
tcp 0 0 10.22.22.21:8080 10.22.22.1:58530 ESTABLISHED 14653/kamailio
tcp 0 0 10.22.22.21:10000 10.22.22.190:42530 ESTABLISHED 14714/kamailio
tcp 0 0 10.22.22.21:8080 10.22.22.1:58532 ESTABLISHED 14704/kamailio
TESTER|centos8.4|tester21 [2021-10-11][12:49:39] [/home/vagrant]$ kamcmd -s udp:127.0.0.1:2046 mod.stats core all | grep tcp
tcpconn_new(1134): 199392
init_tcp(4962): 8192
init_tcp(4956): 32768
init_tcp(4947): 8
init_tcp(4940): 8
init_tcp(4933): 8
init_tcp(4927): 8
init_tcp(4915): 8
In order to trigger this failure much faster, I set tcp_connection_lifetime=60. Then we just wait 60 seconds to let the TCP connections closed. Then we finish the session, and stop our WebClient registering, so all connections are cleaned up.
TESTER|centos8.4|tester21 [2021-10-11][12:50:33] [/home/vagrant]$ sudo netstat -natp | grep 10.22.22
tcp 0 0 10.22.22.21:5060 0.0.0.0:* LISTEN 14714/kamailio
tcp 0 0 10.22.22.21:10000 0.0.0.0:* LISTEN 14714/kamailio
tcp 0 0 10.22.22.21:8080 0.0.0.0:* LISTEN 14714/kamailio
tcp 0 0 10.22.22.21:10001 0.0.0.0:* LISTEN 14714/kamailio
tcp 0 0 10.22.22.21:10002 0.0.0.0:* LISTEN 14714/kamailio
TESTER|centos8.4|tester21 [2021-10-11][12:51:34] [/home/vagrant]$ kamcmd -s udp:127.0.0.1:2046 mod.stats core all | grep tcp
tcpconn_new(1134): 66464
init_tcp(4962): 8192
init_tcp(4956): 32768
init_tcp(4947): 8
init_tcp(4940): 8
init_tcp(4933): 8
init_tcp(4927): 8
init_tcp(4915): 8
As you can see there are no connections but there is memory allocated by tcpconn_new. I know this is related to the MSRP because we noticed our SIP Web Client is not closing the socket, so we just wait for Kamailio to close it.
(paste your debugging data here)
2021-07-25T23:54:41Z ERROR ERROR: <core> [mem/f_malloc.c:415]: fm_search_defrag(): fm_search_defrag(0x7f39a284c000, 66288); Free fragment not found!
2021-07-25T23:54:41Z ERROR ERROR: <core> [mem/f_malloc.c:498]: fm_malloc(): fm_malloc(0x7f39a284c000, 66288) called from core: tcp_main.c: tcpconn_new(957), module: core; Free fragment not found!
2021-07-25T23:54:41Z ERROR ERROR: <core> [tcp_main.c:959]: tcpconn_new(): mem. allocation failure
2021-07-25T23:54:41Z ERROR ERROR: <core> [tcp_main.c:3985]: handle_new_connect(): tcpconn_new failed, closing socket
(paste your sip traffic here)
kamailio -vversion: intcc 5.5.2 (x86_64/linux) 55e232
flags: , EXTRA_DEBUGUSE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, DBG_QM_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED
ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: 55e232
compiled on 12:15:14 Oct 11 2021 with gcc 8.4.1
TESTER|centos8.4|tester21 [2021-10-11][13:52:47] [/home/vagrant]$ uname -a
Linux tester21 4.18.0-305.19.1.el8_4.x86_64 #1 SMP Wed Sep 15 15:39:39 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
centos 8
—
You are receiving this because you are subscribed to this thread.
Reply to this email directly, view it on GitHub, or unsubscribe.
Triage notifications on the go with GitHub Mobile for iOS or Android.