device: 0.806
performance: 0.713
architecture: 0.706
debug: 0.548
graphic: 0.366
network: 0.282
kernel: 0.237
semantic: 0.235
socket: 0.163
hypervisor: 0.162
peripherals: 0.151
i386: 0.151
vnc: 0.138
register: 0.116
permissions: 0.113
PID: 0.105
mistranslation: 0.096
arm: 0.095
x86: 0.092
VMM: 0.091
risc-v: 0.086
TCG: 0.085
virtual: 0.077
assembly: 0.072
boot: 0.063
files: 0.062
user-level: 0.058
ppc: 0.055
KVM: 0.003

QEMU: Null Pointer Failure in fdctrl_read() in hw/block/fdc.c