sorry for the not very usefull information i provides above. i will try to reproduce the the failure with a vailla kernel (host) in a few days. currently the server is in use and cannot be restarted.
the kernel panic was in the guest (thought this is clear by "my vm panic"). If it is reproducable with a vannilla kernel (host) i will provide more detailed information here. the vm is using a 3.3.8 gentoo kernel (not hardened). -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1037675 Title: Guest Kernel Panic if using "-cpu host" in qemu-kvm 1.1.1 Status in QEMU: New Bug description: After Upgrading to qemu-kvm-1.1.1-r1 from version 1.0.1-r1 my virtual machines (running gentoo linux) panic at intel_pmu_init. (detailed information including stacktrace are in the uploaded screenshot). When i remove the "-cpu host" option, the system starts normally. the command line from whicht the system is bootet: qemu-kvm -vnc :7 -usbdevice tablet -daemonize -m 256 -drive file=/data/virtual_machines/wgs-l08.img,if=virtio -boot c -k de -net nic,model=virtio,macaddr=12:12:00:12:34:63,vlan=0 -net tap,ifname=qtap6,script=no,downscript=no,vlan=0 -smp 2 -enable-kvm -cpu host -monitor unix:/var/run/qemu- kvm/wgs-l08.monitor,server,nowait also reported on gentoo bug tracker (with some more details of the host): https://bugs.gentoo.org/show_bug.cgi?id=431640 To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1037675/+subscriptions
