ERROR:../accel/tcg/cpu-exec-common.c:56:cpu_loop_exit_atomic: assertion failed: (!cpu_in_serial_context(cpu))
Description of problem:
```
cat boot.log
aarch64>**
aarch64>ERROR:../accel/tcg/cpu-exec-common.c:56:cpu_loop_exit_atomic: assertion failed: (!cpu_in_serial_context(cpu))
aarch64>Bail out! ERROR:../accel/tcg/cpu-exec-common.c:56:cpu_loop_exit_atomic: assertion failed: (!cpu_in_serial_context(cpu))
```