stresser: (g=0): rw=write, bs=16K-64K/16K-64K, ioengine=mmap, iodepth=1 stresser: (g=1): rw=randrw, bs=16K-64K/16K-64K, ioengine=mmap, iodepth=4 ... stresser: (g=1): rw=randrw, bs=16K-64K/16K-64K, ioengine=mmap, iodepth=4 Starting 5 processes fio: pid=0, err=5/file:filesetup.c:97, func=write, error=Input/output error stresser: Laying out IO file(s) (1 file(s) / 4096MiB) Run status group 0 (all jobs): Run status group 1 (all jobs): Disk stats (read/write): sda: ios=0/1, merge=0/10, ticks=0/0, in_queue=0, util=0.00% Command exited with non-zero status 5 0.01user 2.33system 1:42.95elapsed 2%CPU (0avgtext+0avgdata 0maxresident)k 112inputs+1597768outputs (27major+2196minor)pagefaults 0swaps