device: 0.608
performance: 0.553
semantic: 0.474
graphic: 0.387
other: 0.235
vnc: 0.216
network: 0.135
debug: 0.128
socket: 0.110
boot: 0.091
PID: 0.071
permissions: 0.041
files: 0.039
KVM: 0.021

DEREF_OF_NULL.RET in qdev-clock.c