[ 822.801807] run blktests loop/005 at 2022-10-01 15:57:21 [ 822.814839] loop0: detected capacity change from 0 to 2048 [ 822.890936] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2