[  775.316008] run blktests loop/005 at 2022-09-22 19:43:59
[  775.329307] loop0: detected capacity change from 0 to 2048
[  775.400822] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2