QA output created by 250 *** create loop mount point *** mkfs loop file (size=50g) meta-data=DDEV isize=XXX agcount=N, agsize=XXX blks data = bsize=XXX blocks=XXX, imaxpct=PCT = sunit=XXX swidth=XXX, unwritten=X naming =VERN bsize=XXX log =LDEV bsize=XXX blocks=XXX realtime =RDEV extsz=XXX blocks=XXX, rtextents=XXX *** mount loop filesystem *** preallocate large file *** unmount loop filesystem *** check loop filesystem *** done