device: 0.859
graphic: 0.816
instruction: 0.733
semantic: 0.605
network: 0.536
boot: 0.311
mistranslation: 0.195
other: 0.158
vnc: 0.097
socket: 0.059
KVM: 0.034
assembly: 0.005

qemu segfaults on PNG screendump
Description of problem:
Attempting to produce a screendump via the monitor in the PNG format leads to a segmentation fault (but the screen dump is produced correctly).
Steps to reproduce:
1. Launch QEMU
2. Go to the monitoring screen ()
3. execute the command: `screendump /tmp/dump.png -f png`
4. observe the crash (segfault)