Created attachment 742829 [details]
The photo of the kernel crash.

Description of problem:
My Windows virtual machine crashes shortly after boot if the NIC in Virt Manager is set to use macvtap driver in bridge mode. The crash brings down the host PC with kernel oops message.

Version-Release number of selected component (if applicable):
kernel-3.9.0-301.fc19.x86_64 (also happened using earlier versions)
qemu-common.x86_64                     2:1.4.1-1.fc19           @updates-testing
qemu-guest-agent.x86_64                2:1.4.1-1.fc19           @updates-testing
qemu-img.x86_64                        2:1.4.1-1.fc19           @updates-testing
qemu-kvm.x86_64                        2:1.4.1-1.fc19           @updates-testing
qemu-system-x86.x86_64 
virt-manager-0.10.0-0.1.gitd3f9bc8e.fc19.noarch

Steps to Reproduce:
1. Setup the VM to use NIC in bridge mode using macvtap driver
2. Start the VM and wait a few minutes
3. Host system will crash


Expected results:
Should run just fine as it did in Fedora 18

Additional info:
Attaching a photo of the kernel oops message as I could not find it in the logs after hard reboot.