device: 0.830
user-level: 0.755
performance: 0.748
network: 0.624
architecture: 0.610
kernel: 0.582
boot: 0.331
debug: 0.309
graphic: 0.280
arm: 0.220
PID: 0.218
peripherals: 0.215
permissions: 0.205
TCG: 0.198
ppc: 0.172
semantic: 0.121
VMM: 0.113
i386: 0.099
vnc: 0.097
risc-v: 0.096
files: 0.073
register: 0.072
mistranslation: 0.062
virtual: 0.060
socket: 0.050
assembly: 0.035
KVM: 0.033
x86: 0.022
hypervisor: 0.011

linux-user hangs if fd_trans_lock is held during fork