Cherry-picked commits after 1.11.2:

open-mpi/hwloc@d2d07b9a2268699e13e1644b4f2ef7a53ef7396c
open-mpi/hwloc@9549fd59af04dca2e2340e17f0e685f8c552d818
open-mpi/hwloc@0ab7af5e90fc2b58be30b2126cc2a73f9f7ecfe9
