blk_rw$(nW)TEST0: START: blk_rw
 $(nW)blk_rw$(nW) 512 $(nW)$(nW)testfile1 c r:0 r:1 r:32201 r:32313 z:0 z:1 r:0
512 block size 512 usable blocks 32313
read      lba 0: {0}
read      lba 1: {0}
read      lba 32201: {0}
read      lba 32313: Invalid argument
set_zero  lba 0
set_zero  lba 1
read      lba 0: {0}
blk_rw$(nW)TEST0: DONE