# cat reproducer.sh 
#!/bin/bash

set -x

DIR=/tmp/test-dir

cleanup () {
    if test -f ${DIR}/ovsdb-server.pid; then
        kill $(cat ${DIR}/ovsdb-server.pid) || true
    fi
}
trap cleanup 0 1 2 3 13 14 15

rm -rf ${DIR}
mkdir ${DIR}

export OVS_RUNDIR=${DIR}
export OVS_LOGDIR=${DIR}
export OVN_RUNDIR=${DIR}
export OVN_LOGDIR=${DIR}

ovsdb-tool create ${DIR}/conf.db /usr/share/openvswitch/vswitch.ovsschema
ovsdb-server --detach --no-chdir --pidfile --log-file \
             -vconsole:off -vsyslog:off \
             --remote=punix:${DIR}/db.sock ${DIR}/conf.db
#ovs-vsctl --db=unix:${DIR}/db.sock --no-wait init

gdb --args ovn-controller --no-chdir --log-file \
                          -vsyslog:off -vconsole:info \
                          unix:${DIR}/db.sock <<< "
run
backtrace
frame function main
echo print cfg\n
print cfg
quit
y
"

(gdb) Starting program: /usr/bin/ovn-controller --no-chdir --log-file -vsyslog:off -vconsole:info unix:/tmp/test-dir/db.sock

2024-07-23T19:59:38Z|00001|vlog|INFO|opened log file /tmp/test-dir/ovn-controller.log
[New Thread 0x7ffff6f676c0 (LWP 2947)]
[New Thread 0x7ffff5f656c0 (LWP 2949)]
[New Thread 0x7ffff67666c0 (LWP 2948)]
2024-07-23T19:59:38Z|00002|reconnect|INFO|unix:/tmp/test-dir/db.sock: connecting...
2024-07-23T19:59:38Z|00003|reconnect|INFO|unix:/tmp/test-dir/db.sock: connected
[New Thread 0x7ffff57236c0 (LWP 2950)]
2024-07-23T19:59:38Z|00004|main|INFO|OVN internal version is : [24.03.90-20.34.0-73.6]
2024-07-23T19:59:38Z|00005|main|INFO|OVS IDL reconnected, force recompute.
2024-07-23T19:59:38Z|00006|main|INFO|OVNSB IDL reconnected, force recompute.
2024-07-23T19:59:38Z|00007|chassis|WARN|'system-id' in Open_vSwitch database is missing.

Thread 1 "ovn-controller" received signal SIGSEGV, Segmentation fault.
shash_find__ (sh=0x180, name=0x5555556903cb "vlan-limit", name_len=10, hash=777389702)
    at ovs-bf1b16364b3f01b0ff5f2f6e76842e666226a17b/lib/shash.c:225
225         HMAP_FOR_EACH_WITH_HASH (node, node, hash, &sh->map) {
(gdb) #0  shash_find__ (sh=0x180, name=0x5555556903cb "vlan-limit", name_len=10, hash=777389702)
    at ovs-bf1b16364b3f01b0ff5f2f6e76842e666226a17b/lib/shash.c:225
#1  0x00005555556328a1 in smap_get_node (smap=0x180, key=0x5555556903cb "vlan-limit")
    at ovs-bf1b16364b3f01b0ff5f2f6e76842e666226a17b/lib/smap.c:217
#2  smap_get_def (smap=0x180, key=0x5555556903cb "vlan-limit", def=0x0)
    at ovs-bf1b16364b3f01b0ff5f2f6e76842e666226a17b/lib/smap.c:208
#3  smap_get (smap=0x180, key=0x5555556903cb "vlan-limit") at ovs-bf1b16364b3f01b0ff5f2f6e76842e666226a17b/lib/smap.c:200
#4  smap_get_int (smap=0x180, key=0x5555556903cb "vlan-limit", def=-1)
    at ovs-bf1b16364b3f01b0ff5f2f6e76842e666226a17b/lib/smap.c:240
#5  0x0000555555560003 in main (argc=<optimized out>, argv=<optimized out>) at controller/ovn-controller.c:5430
(gdb) #5  0x0000555555560003 in main (argc=<optimized out>, argv=<optimized out>) at controller/ovn-controller.c:5430
5430                int vlan_limit = smap_get_int(
(gdb) print cfg
(gdb) $1 = (const struct ovsrec_open_vswitch *) 0x0