device: 0.935
graphic: 0.904
PID: 0.724
socket: 0.690
semantic: 0.685
performance: 0.662
debug: 0.628
KVM: 0.621
network: 0.490
files: 0.393
vnc: 0.261
boot: 0.183
other: 0.053
permissions: 0.016

sd: assertion in sd_read_byte()
Description of problem:
The following log reveals it:

```
ERROR: qemu/hw/sd/sd.c:2541:sd_read_byte: code should not be reached
Bail out! ERROR: qemu/hw/sd/sd.c:2541:sd_read_byte: code should not be reached Aborted (core dumped)
```