QA output created by 501
File bar digest before power failure:
69319d0343ab8f5ea564167da445addc  SCRATCH_MNT/bar
umount: /mnt/scratch: target is busy.
mount: /mnt/scratch: /dev/mapper/flakey-test already mounted on /mnt/scratch.
File bar digest after power failure:
69319d0343ab8f5ea564167da445addc  SCRATCH_MNT/bar
umount: /mnt/scratch: target is busy.