device: 0.698
instruction: 0.695
vnc: 0.521
graphic: 0.457
boot: 0.383
KVM: 0.271
socket: 0.213
other: 0.153
mistranslation: 0.078
network: 0.077
semantic: 0.074
assembly: 0.033

xv6 kernel problem in single step mode