graphic: 0.805 device: 0.544 semantic: 0.465 performance: 0.381 boot: 0.296 permissions: 0.268 other: 0.249 network: 0.246 socket: 0.235 debug: 0.229 PID: 0.212 vnc: 0.196 files: 0.180 KVM: 0.036 windows7 reboot bluesreen 0x0000005c I have met sevaral blue screen with 0x0000005c(0x0000010b,0x00000003,0x00000000,0x00000000) after windows7 reboot. It always happens just before the windows iron animation appears. my qemu version is qemu-2.1.0 my guest os is windows7 32bits sp1 my qemu commandline is ./x86_64-softmmu/qemu-system-x86_64 -m 2048 -hda system.inst -spice port=5940,disable-ticketing -monitor stdio --enable-kvm This bug doesn't happen always,and i don‘t know how to reproduce it. But i have a special way to produce such a bluescreen. I set nmi dump on and set windows to collect dump file and set auto reboot after system fail on. Then i send a nmi to guest, and then after collecting dump file , windows will auto reboot and then such a blue screen happens. And this can be reproduced always. Triaging old bug tickets... can you still reproduce this issue with the latest version of QEMU? Or could we close this ticket nowadays? [Expired for QEMU because there has been no activity for 60 days.]