As an example, I have tried to reproduce with the following configuration: (k)rafaeldtinoco@win2019crashhost:~$ uname -a Linux win2019crashhost 5.0.0-34-generic #36-Ubuntu SMP Wed Oct 30 05:16:14 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
---- (k)rafaeldtinoco@win2019crashhost:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 19.10 Release: 19.10 Codename: eoan ---- (k)rafaeldtinoco@win2019crashhost:~$ virsh dumpxml win2019crash <domain type='kvm'> <name>win2019crash</name> <uuid>68ea22b7-7401-45bb-a7b0-a60956081e42</uuid> <memory unit='KiB'>8388608</memory> <currentMemory unit='KiB'>8388608</currentMemory> <vcpu placement='static'>4</vcpu> <resource> <partition>/machine</partition> </resource> <os> <type arch='x86_64' machine='pc-i440fx-2.5'>hvm</type> <boot dev='cdrom'/> <boot dev='hd'/> </os> <features> <acpi/> <apic/> </features> <cpu mode='host-passthrough' check='none'/> <clock offset='utc'> <timer name='rtc' tickpolicy='catchup'/> <timer name='pit' tickpolicy='delay'/> <timer name='hpet' present='yes'/> </clock> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <pm> <suspend-to-mem enabled='no'/> <suspend-to-disk enabled='no'/> </pm> <devices> <emulator>/usr/bin/qemu-system-x86_64</emulator> <disk type='file' device='disk'> <driver name='qemu' type='qcow2'/> <source file='/var/lib/libvirt/images/win2019crash/disk01.ext4.qcow2'/> <target dev='vda' bus='virtio'/> </disk> <disk type='file' device='cdrom'> <driver name='qemu' type='raw'/> <source file='/var/lib/libvirt/images/kwin2019/win2019.iso'/> <target dev='hdc' bus='ide'/> <readonly/> </disk> <disk type='file' device='floppy'> <driver name='qemu' type='raw'/> <source file='/var/lib/libvirt/images/kwin2019/virtio.vfd'/> <target dev='fda' bus='fdc'/> <readonly/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> <controller type='usb' index='0' model='piix3-uhci'> </controller> <controller type='pci' index='0' model='pci-root'/> <controller type='ide' index='0'> </controller> <controller type='scsi' index='0' model='lsilogic'> </controller> <controller type='fdc' index='0'/> <interface type='bridge'> <mac address='52:54:00:3d:1d:9d'/> <source bridge='bridge0'/> <model type='virtio'/> </interface> <serial type='pty'> <target type='isa-serial' port='0'> <model name='isa-serial'/> </target> </serial> <console type='pty'> <target type='serial' port='0'/> </console> <input type='mouse' bus='ps2'/> <input type='keyboard' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0' keymap='en-us'> <listen type='address' address='0.0.0.0'/> </graphics> <video> <model type='cirrus' vram='16384' heads='1' primary='yes'/> </video> <memballoon model='virtio'> </memballoon> </devices> </domain> But I saw you're using q35 arch model, so I might give it another try, and I have tested this in an AMD machine, but I have Intel machine available to test as well. Having your host's CPU type would also be great. -- 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