I'm updating to a newer xfstests and seeing: generic/495 - output mismatch (see /root/xfstests-dev/results//generic/495.out.bad) --- tests/generic/495.out 2019-09-18 17:28:00.834721480 -0400 +++ /root/xfstests-dev/results//generic/495.out.bad 2019-09-20 13:34:01.1568 89741 -0400 @@ -1,5 +1,4 @@ QA output created by 495 File with holes -swapon: Invalid argument Empty swap file (only swap header) swapon: Invalid argument If I understand correctly, it's requiring swapon to fail on a sparse file, which isn't going to happen on NFS, where the sparsenes of the file isn't really the client's concern. Is it really correct to *require* swapon to fail in this case? --b.