Arch Linux

Description:
Qemu libvirt cannot start a virtual machine.
From the logs:
>>libvirtd quit during handshake: Input/output error<<

Additionally it is impossible to create a new guest. Fails with the same error.

Additional info:

/var/log/libvirt/qemu/>>DomainName<<.log

2017-01-23 19:29:24.419+0000: starting up libvirt version: 3.0.0, qemu version: 2.8.0, hostname: HOSTNAME.lan
LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin QEMU_AUDIO_DRV=spice /usr/sbin/qemu-system-x86_64 -name guest=GUEST,debug-threads=on -S -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-1-GUEST/master-key.aes -machine pc-i440fx-2.8,accel=kvm,usb=off,vmport=off,dump-guest-core=off -cpu Haswell -m 4096 -realtime mlock=off -smp 2,sockets=2,cores=1,threads=1 -uuid ec8c9a5f-738d-4178-ab57-07afda042758 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-1-GUEST/monitor.sock,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 PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -boot strict=on -device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x5.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x5 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x5.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x5.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 -drive file=/dev/vms/GUEST,format=raw,if=none,id=drive-virtio-disk0,cache=none,aio=native -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x7,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive if=none,id=drive-ide0-0-0,readonly=on -device ide-cd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -netdev tap,fd=24,id=hostnet0,vhost=on,vhostfd=26 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:ad:3d:c6,bus=pci.0,addr=0x3 -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 -device usb-tablet,id=input0,bus=usb.0,port=1 -spice port=5900,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=16,max_outputs=1,bus=pci.0,addr=0x2 -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -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=2 -chardev spicevmc,id=charredir1,name=usbredir -device usb-redir,chardev=charredir1,id=redir1,bus=usb.0,port=3 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x8 -msg timestamp=on
libvirt: error : libvirtd quit during handshake: Input/output error

Additional info:
* package version(s)
libvirt 3.0.0-1
libvirt-glib 1.0.0-1
libvirt-python 2.5.0-1
* config and/or log files etc.
/var/log/libvirt/qemu/>>DomainName<<.log

Steps to reproduce:
1) Create a virtual machine in virt manager/virsh with qemu with kvm enabled.
2) Upgrade packages:
libvirt 2.5.0-1 -> 3.0.0-1
libvirt-glib 0.2.3-1 -> 1.0.0-1
libvirt-python 2.2.0-2 -> 2.5.0-1
3) Launch a virtual machine.