blk_rw$(nW)TEST9w: START: blk_rw
 $(nW)blk_rw$(nW) 512 $(nW)$(nW)testset1 c w:-1 r:-1 z:-1 e:-1
512 block size 512 usable blocks 4161335
write     lba -1: Invalid argument
read      lba -1: Invalid argument
set_zero  lba -1: Invalid argument
set_error lba -1: Invalid argument
blk_rw$(nW)TEST9w: DONE