I don't know if $SUBJECT ever worked... but with latest 6.15 or nfsd-testing if I just use pool_mode=global then all is fine. If pool_mode=pernode then mounting the container's NFSv3 export fails. I haven't started to dig into code yet but pool_mode=pernode works perfectly fine if NFSD isn't running in a container. Mike ps. yet another reason why pool_mode=pernode should be the default if more than 1 NUMA node ;)
