[SR-Users] core dump error when running under docker

[Carlos Vicente]

Greetings,

I'm having a "fun" time trying to run Kamailio inside a Docker container.
It keeps failing with:

 0(238) DEBUG: <core> [core/mem/pkg.c:108]: pkg_print_manager(): pkg -
using memory manager: q_malloc
 0(238) DEBUG: <core> [core/mem/shm.c:300]: shm_print_manager(): shm -
using memory manager: q_malloc
Illegal instruction (core dumped)

Unfortunately the core dump is nowhere to be found. I have tried to follow
the instructions at:

    https://www.kamailio.org/wiki/tutorials/troubleshooting/coredumpfile

but that hasn't helped.

The environment is as follows:

* Host hardware: Raspberry Pi 4 (4G memory)
* Host OS: Ubuntu 20.04.1 LTS
* Docker version 19.03.13
* Docker base image: arm32v7/ubuntu

root at 2ef8a21534fa:/# kamailio -v
version: kamailio 5.3.2 (arm/linux)
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-NOSMP,
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: unknown
compiled with gcc 9.2.1

The config file passes the syntax check:

    kamailio -c -f /etc/kamailio/kamailio.cfg

and, the most interesting part, if I run Kamailio on the host machine,
_with the exact same config file_, it runs fine.

I'd appreciate any clues you may have. Thanks.

cv
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