performance: 0.711
device: 0.672
architecture: 0.528
arm: 0.516
network: 0.475
mistranslation: 0.437
PID: 0.430
semantic: 0.427
boot: 0.350
i386: 0.316
TCG: 0.310
graphic: 0.305
permissions: 0.287
VMM: 0.270
ppc: 0.266
vnc: 0.262
x86: 0.259
debug: 0.237
kernel: 0.204
virtual: 0.203
register: 0.199
hypervisor: 0.179
risc-v: 0.157
assembly: 0.134
peripherals: 0.117
user-level: 0.110
files: 0.092
socket: 0.088
KVM: 0.078

allow qemu_thread_create to return with error