[ 6157.693131] run blktests block/023 at 2022-10-02 13:30:35
[ 6157.701054] null_blk: disk nullb0 created
[ 6157.701057] null_blk: module loaded
[ 6157.911511] null_blk: disk nullb0 created
[ 6157.911520] null_blk: module loaded