Comment 4 for bug 1800159

@pqa It's not running in a container we want stable software

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@kstenerud

# dmsg
...
[Fri Nov 16 10:45:58 2018] nf_conntrack version 0.5.0 (65536 buckets, 262144 max)
[Fri Nov 16 10:45:58 2018] IPVS: Registered protocols (TCP, UDP, SCTP, AH, ESP)
[Fri Nov 16 10:45:58 2018] IPVS: Connection hash table configured (size=4096, memory=64Kbytes)
[Fri Nov 16 10:45:58 2018] IPVS: ipvs loaded.

# systemctl status keepalived.service
● keepalived.service - Keepalive Daemon (LVS and VRRP)
   Loaded: loaded (/lib/systemd/system/keepalived.service; enabled; vendor preset: enabled)
   Active: active (running) since Fri 2018-11-16 10:45:54 CET; 1min 13s ago
  Process: 1751 ExecStart=/usr/sbin/keepalived $DAEMON_ARGS (code=exited, status=0/SUCCESS)
 Main PID: 1832 (keepalived)
   CGroup: /system.slice/keepalived.service
           ├─1832 /usr/sbin/keepalived -d
           ├─1833 /usr/sbin/keepalived -d
           └─1834 /usr/sbin/keepalived -d

# lsmod | grep ip_
ip_vs 151552 0
nf_conntrack 131072 1 ip_vs
libcrc32c 16384 3 nf_conntrack,xfs,ip_vs

# systemctl stop keepalived.service
# lsmod | grep ip_
  ip_vs 151552 0
  nf_conntrack 131072 1 ip_vs
  libcrc32c 16384 3 nf_conntrack,xfs,ip_vs
# modprobe -r ip_vs
# lsmod | grep ip
  ipmi_ssif 32768 0
  ipmi_si 57344 0
  ipmi_devintf 20480 0
  ipmi_msghandler 53248 3 ipmi_devintf,ipmi_si,ipmi_ssif

# modprobe ip_vs
# lsmod | grep ip
  ip_vs 151552 0
  nf_conntrack 131072 1 ip_vs
  libcrc32c 16384 3 nf_conntrack,xfs,ip_vs
# systemctl start keepalived.service
# lsmod | grep ip_
  ip_vs_wlc 16384 3
  ip_vs 151552 5 ip_vs_wlc
  nf_conntrack 131072 1 ip_vs
  libcrc32c 16384 3 nf_conntrack,xfs,ip_vs

So the problem is "ip_vs_wlc" if this module isn't loading
# ipvsadm -Ln
  IP Virtual Server version 1.2.1 (size=4096)
  Prot LocalAddress:Port Scheduler Flags
     -> RemoteAddress:Port Forward Weight ActiveConn InActConn

with the module
# ipvsadm -Ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
  -> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 10.10.10.10:1234 wlc persistent 1440
  -> 10.1.1.2:1234 Route 10 0 0
  -> 10.1.1.3:1234 Route 10 0 0