KVM: 0.977
instruction: 0.692
device: 0.674
graphic: 0.650
semantic: 0.648
mistranslation: 0.550
other: 0.528
boot: 0.393
vnc: 0.147
network: 0.119
socket: 0.025
assembly: 0.005

custom kernel give me KVM internal error. Suberror: 4