QA output created by 201
Testing with hole offset 0 hole length 65536
File digest before power failure:
e1e40ea5ab31cc36fb74830a6293eb2b  SCRATCH_MNT/bar
File digest after power failure and log replay:
e1e40ea5ab31cc36fb74830a6293eb2b  SCRATCH_MNT/bar

Testing with hole offset 786432 hole length 54919168
File digest before power failure:
8bfa78372c90f7418ce6a90ba3a92b7f  SCRATCH_MNT/bar
File digest after power failure and log replay:
8bfa78372c90f7418ce6a90ba3a92b7f  SCRATCH_MNT/bar

Testing with hole offset 720896 hole length 54919168
failed to create flakey device