Comment 7 for bug 1800159

Reproduced with your keepalived.conf, thanks - specifically that what goes to syslog seems to be a problem on startup without ip_vs manually loaded, and after a manual modprobe there is less of an error (I get other errors presumably because I don't have your network set up).

I'm surprised to hear of the report in the Debian bug that adding ip_vs to /etc/modules does not work. @Thorsten please could you try this? It's a workaround and not a proper permanent fix but if the workaround doesn't work that will help us inform us for a proper fix.

I also don't see any changes in packaging that would have caused this to have been fixed in Bionic. I wonder if there is a change keepalived that landed after Xenial's version that fixes this.