sysctl vm on 6.1_STABLE DOMU

["Gary Duzan" <gary%duzan.org@localhost>]

   For a month or so, sysctl vm on my 6.1_STABLE amd64/XEN3_DOMU
machine has errored out with:

          systat: nlist: can't find following symbols:
          _intrnames
          _eintrnames
          _intrcnt
          _eintrcnt
          _allevents

Non-Xen amd64 is fine, as are the other sysctl screens. Does this
sound familiar to anyone, or should I just send-pr?

                                Gary Duzan