QA output created by 315 Format filesystem Create files Check files cf41e243bf211225660f3fabe6db9eb6 SCRATCH_MNT/file1 cf41e243bf211225660f3fabe6db9eb6 SCRATCH_MNT/file2 Inject error CoW a few blocks FS should be shut down, touch will fail touch: cannot touch 'SCRATCH_MNT/badfs': Input/output error Remount to replay log FS should be online, touch should succeed Check files again fe9070b9c9deb97ed53811efda5c4ad5 SCRATCH_MNT/file1 cf41e243bf211225660f3fabe6db9eb6 SCRATCH_MNT/file2 Done