On Thu, Jan 7, 2021, 16:48 Łukasz Kołaciński <l.kolacinski(a)storware.eu&gt; wrote: ... Looks like qemu crashed when stopping the backup. Can you file a bug for this, and attach logs? We these logs from host the vm was running on: - /var/log/vdsm/vdsm.log (the right log showing the time backup was stopped) - /var/log/ovirt-imageio/daemon.log - /var/log/libvirt/libvird.log (may be missing) - /var/log/libvirt/qemu/<vm-name>.log Also the vm xml (virsh -r dumpxml vm-name). ... I never had any issue with these version: # rpm -q libvirt-daemon qemu-kvm libvirt-daemon-6.6.0-8.module+el8.3.1+8648+130818f2.x86_64 qemu-kvm-5.1.0-13.module+el8.3.0+8424+e82f331d.x86_64 Looks like you run older libvirt version, but have newer qemu version. Where did you got these packages? Are you running on RHEL or Centos? Nir