When checking vtypes, check not only for the type's existance in the table, but also that there are any nodes of that type. The entry could have been put into the table because of a set-type-limit line in the ptop file.
When checking vtypes, check not only for the type's existance in the
table, but also that there are any nodes of that type. The entry could
have been put into the table because of a set-type-limit line in the
ptop file.

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome