I had the same issue: Host system freeze whenever a Windows guest VM made it to the login screen. The last thing I could see in journalctl -f was a DHCP exchange with the VM before everything froze.
Solution: Change NIC device model from e1000e to virtio, apply change and boot. No freeze, Windows guest been running about 1 hour now. My Specs: System76 Galago Pro PopOS 19.10 5.3.0-20-generic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1849720 Title: Running VM with Virtual NIC Crashes Host OS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1849720/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
