device: 0.599
network: 0.538
arm: 0.513
vnc: 0.469
TCG: 0.468
architecture: 0.465
ppc: 0.416
socket: 0.361
PID: 0.330
VMM: 0.308
boot: 0.248
graphic: 0.241
risc-v: 0.238
semantic: 0.237
mistranslation: 0.157
i386: 0.147
x86: 0.125
debug: 0.116
register: 0.105
virtual: 0.094
files: 0.067
kernel: 0.057
permissions: 0.055
performance: 0.054
peripherals: 0.034
user-level: 0.030
assembly: 0.019
KVM: 0.010
hypervisor: 0.004

block-backend assertion with Cocoa UI