device: 0.767 network: 0.620 graphic: 0.550 semantic: 0.516 debug: 0.444 PID: 0.440 other: 0.437 socket: 0.425 boot: 0.393 vnc: 0.313 KVM: 0.295 permissions: 0.291 files: 0.269 performance: 0.123 executable qemu-1.4.0/i386-linux-user/./qemu-i386 gives a segmentation fault executable qemu-1.4.0/i386-linux-user/./qemu-i386 gives a segmentation fault Can you please provide some more information here. e.g. - qemu command-line used - how did you trigger it - libvirt/or direct qemu-kvm binary - segentation fault/tracedetails I'm going to close this bug, since there was no response to the 2013 request for more detail. If you're still having problems with QEMU, please open a fresh bug report.