13 Dec
2021
13 Dec
'21
6 p.m.
### Description
Hi,
I have been doing some load testing on kamailio 5.4.7 running in podman.
Kamailio is using dmq to share dialogs and htable with a backup Kamailio also running
5.4.7.
I tested with 100 CPS and during the first minutes all calls are being processed correctly
but then all the messages start to be retransmitted.
Kamailio is not processing any sip messages anymore but still replies to HTTP requests, is
still possible to run kamctl/kamcmd commands on it but for example, if running the command
"kamcmd dlg.list" nothing happens.
Also, I did a load test with the backup Kamailio turn off so that there is no replication
between them, and in that case, I can run the 100 CPS without any issue.
In kamcmd trap file I can see a lot of "<error: Cannot access memory"
errors.
In order for Kamailio to start processing again sip, I need to restart it.
Any extra logs that I can try to collect when the problem happens?
#### Debugging Data
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If you got a core dump, use gdb to extract troubleshooting data - full backtrace,
local variables and the list of the code at the issue location.
gdb /path/to/kamailio /path/to/corefile
bt full
info locals
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If you are familiar with gdb, feel free to attach more of what you consider to
be relevant.
-->
[trap.txt](https://github.com/kamailio/kamailio/files/7705076/trap.txt)
### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
version: kamailio 5.4.7 (x86_64/linux) a19fe1
flags: USE_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,
USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR,
USE_DST_BLACKLIST, 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: a19fe1
compiled on 14:06:57 Dec 13 2021 with gcc 10.2.1
```
* **Operating System**:
<!--
Details about the operating system, the type: Linux (e.g.,: Debian 8.4, Ubuntu 16.04,
CentOS 7.1, ...), MacOS, xBSD, Solaris, ...;
Kernel details (output of `lsb_release -a` and `uname -a`)
-->
```
Debian 5.10.70-1 (2021-09-30) x86_64 GNU/Linux
```
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