xfstests: not deleting files (011, 013)

generic/011 - output mismatch (see /root/xfstests-dev/results//generic/011.out.bad) --- tests/generic/011.out 2019-10-14 14:59:46.000000000 -0400 +++ /root/xfstests-dev/results//generic/011.out.bad 2019-11-06 06:12:52.313177340 -0500 @@ -2,3 +2,7 @@ *** TEST 1 -p 1 -n 1 -f *** TEST 2 -p 5 -n 1 -f *** TEST 3 -p 5 -n 5 -f +rm: cannot remove '/mnt/nfstest/dirstress.3540/stressdir/stress.3/.nfs0000000000108663000a72a2': Device or resource busy +rm: cannot remove '/mnt/nfstest/dirstress.3540/stressdir/stress.4/.nfs0000000000108255000a718e': Device or resource busy +rm: cannot remove '/mnt/nfstest/dirstress.3540/stressdir/stress.4/.nfs00000000001083e4000a6f7e': Device or resource busy +rm: cannot remove '/mnt/nfstest/dirstress.3540/stressdir/stress.2/.nfs0000000000108457000a74fa': Device or resource busy ... (Run 'diff -u /root/xfstests-dev/tests/generic/011.out /root/xfstests-dev/results//generic/011.out.bad' to see the entire diff) generic/013 - output mismatch (see /root/xfstests-dev/results//generic/013.out.bad) --- tests/generic/013.out 2019-10-14 14:59:46.000000000 -0400 +++ /root/xfstests-dev/results//generic/013.out.bad 2019-11-06 06:22:02.180177340 -0500 @@ -12,3 +12,15 @@ ----------------------------------------------- fsstress.3 : -p 4 -z -f rmdir=10 -f link=10 -f creat=10 -f mkdir=10 -f rename=30 -f stat=30 -f unlink=30 -f truncate=20 ----------------------------------------------- +rm: cannot remove '/mnt/nfstest/fsstress.3947.2/pe/d6XXXX/d16/d18XXXXXXXXXXXX/d19XXXXXXXXXXXXXXXXXXX/d1aXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXy +rm: cannot remove '/mnt/nfstest/fsstress.3947.2/pf/d4X/d53XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX': Directory not empty +rm: cannot remove '/mnt/nfstest/fsstress.3947.2/p5/d0XX/d3eXXXX': Directory not empty +rm: cannot remove '/mnt/nfstest/fsstress.3947.2/p13/d2XXXXXXX': Directory not empty