uname -a: FreeBSD fbsd12.fritz.box 12.2-STABLE FreeBSD 12.2-STABLE stable12-n232783-67dedc2a115e FBSD12 amd64 freebsd-version -kur: 12.2-STABLE 12.2-STABLE 12.2-STABLE /usr/bin/qemu-system-x86_64 \ -name guest=fbsd12,debug-threads=on \ -S \ -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-102-fbsd12/master-key.aes \ -machine pc-q35-5.0,accel=kvm,usb=off,vmport=off,dump-guest-core=off \ -cpu IvyBridge-IBRS,ss=on,vmx=on,pdcm=on,pcid=on,hypervisor=on,arat=on,tsc-adjust=on,umip=on,md-clear=on,stibp=on,arch-capabilities=on,ssbd=on,xsaveopt=on,ibpb=on,amd-stibp=on,amd-ssbd=on,skip-l1dfl-vmentry=on,pschange-mc-no=on,aes=off \ -m 6144 \ -overcommit mem-lock=off \ -smp 1,sockets=1,cores=1,threads=1 \ -uuid 129544d8-293b-4cf5-a571-8012221f7bcc \ -no-user-config \ -nodefaults \ -chardev socket,id=charmonitor,fd=30,server,nowait \ -mon chardev=charmonitor,id=monitor,mode=control \ -rtc base=utc,driftfix=slew \ -global kvm-pit.lost_tick_policy=delay \ -no-hpet \ -no-shutdown \ -global ICH9-LPC.disable_s3=1 \ -global ICH9-LPC.disable_s4=1 \ -boot strict=on \ -device pcie-root-port,port=0x10,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x2 \ -device pcie-root-port,port=0x11,chassis=2,id=pci.2,bus=pcie.0,addr=0x2.0x1 \ -device pcie-root-port,port=0x16,chassis=3,id=pci.3,bus=pcie.0,addr=0x2.0x6 \ -device pcie-root-port,port=0x12,chassis=4,id=pci.4,bus=pcie.0,addr=0x2.0x2 \ -device pcie-root-port,port=0x13,chassis=5,id=pci.5,bus=pcie.0,addr=0x2.0x3 \ -device pcie-root-port,port=0x14,chassis=6,id=pci.6,bus=pcie.0,addr=0x2.0x4 \ -device pcie-root-port,port=0x15,chassis=7,id=pci.7,bus=pcie.0,addr=0x2.0x5 \ -device ich9-usb-ehci1,id=usb,bus=pcie.0,addr=0x1d.0x7 \ -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pcie.0,multifunction=on,addr=0x1d \ -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pcie.0,addr=0x1d.0x1 \ -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pcie.0,addr=0x1d.0x2 \ -device virtio-scsi-pci,id=scsi0,bus=pci.7,addr=0x0 \ -device virtio-serial-pci,id=virtio-serial0,bus=pci.4,addr=0x0 \ -device ide-cd,bus=ide.0,id=sata0-0-0 \ -blockdev {"driver":"file","filename":"/var/lib/libvirt/images/fbsd12.vmdk","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"} \ -blockdev {"node-name":"libvirt-1-format","read-only":false,"driver":"vmdk","file":"libvirt-1-storage","backing":null} \ -device ide-hd,bus=ide.1,drive=libvirt-1-format,id=sata0-0-1,bootindex=1 \ -netdev tap,fd=33,id=hostnet0 -device e1000e,netdev=hostnet0,id=net0,mac=52:54:00:36:98:a1,bus=pci.1,addr=0x0 \ -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 \ -chardev spicevmc,id=charchannel0,name=vdagent \ -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0 \ -chardev socket,id=charchannel1,fd=34,server,nowait \ -device virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=org.qemu.guest_agent.0 \ -device usb-tablet,id=input2,bus=usb.0,port=3 \ -spice port=5901,addr=127.0.0.1,disable-ticketing,image-compression=off,seamless-migration=on \ -device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=64,max_outputs=1,bus=pcie.0,addr=0x1 \ -device ich9-intel-hda,id=sound0,bus=pcie.0,addr=0x1b \ -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 \ -chardev spicevmc,id=charredir0,name=usbredir \ -device usb-redir,chardev=charredir0,id=redir0,bus=usb.0,port=1 \ -chardev spicevmc,id=charredir1,name=usbredir \ -device usb-redir,chardev=charredir1,id=redir1,bus=usb.0,port=2 \ -device virtio-balloon-pci,id=balloon0,bus=pci.6,addr=0x0 \ -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \ -msg timestamp=on Devices detected, but not properly initialized: - em0 -- no communication. dhclient hangs indefinitely sending packages. Manual setting addresses does not help either: no packets are send thru this device. Devices detected, but not used: - virtio-network-card The network card is found, but not used, because it is not seen as network device. virtio-disk is a bit suspicious: loader finds disk, kernel too, but later on this disk is not found by zfs device scanning procedures. Swap given as /dev/geo/swap0 is not found then (zfs-volume). switching from virtio-disk to sata-disk: disk is found now by zfs device scanning procedures. switching from virtio-disk to scsi-disk: disk is found, but zfs device scanning procedures fail to find it. host 1: Debian testing, latest qemu-kvm, virt-manager host 2: Ubuntu 20.10, latest available qemu-kvm, virt-manager host 3: FreeBSD CURRENT, latest available qemu-kvm, virt-manager