miscdev-bad-count.sh and lp-994247 in ubuntu_ecryptfs failed on X-KVM

miscdev-bad-count.sh and lp-994247 failed with all 5 different filesystems:
  - ext2
  - ext3
  - ext4
  - xfs
  - btrfs

Example output for a failed test case.

* Command:
    tests/run_one.sh -K -t miscdev-bad-count.sh -b 1000000 -D /mnt/image -l
    /mnt/lower -u /mnt/upper -f ext2
Exit status: 1
Duration: 16.8566250801

stdout:
miscdev-bad-count FAIL

Test Summary:
0 passed
1 failed

Please find the attachment for the full test log.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-1051-kvm 4.4.0-1051.58
ProcVersionSignature: User Name 4.4.0-1051.58-kvm 4.4.179
Uname: Linux 4.4.0-1051-kvm x86_64
ApportVersion: 2.20.1-0ubuntu2.19
Architecture: amd64
Date: Tue Jul 23 04:05:21 2019
SourcePackage: linux-kvm
UpgradeStatus: No upgrade log present (probably fresh install)