Qemu VM save fails

English Virtualization
1

Qemu virtual machine save fails with error:

Error saving domain: operation failed: domain save job: unexpectedly failed

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 65, in cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/vmmenu.py", line 187, in cb
    vm.save(meter=asyncjob.get_meter())
  File "/usr/share/virt-manager/virtManager/object/libvirtobject.py", line 57, in newfn
    ret = fn(self, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/object/domain.py", line 1379, in save
    self._backend.managedSave(0)
  File "/usr/lib64/python3.8/site-packages/libvirt.py", line 1780, in managedSave
    raise libvirtError('virDomainManagedSave() failed')
libvirt.libvirtError: operation failed: domain save job: unexpectedly failed

When I monitor /var/lib/libvirt/qemu/save/ while save is in progress, I see that save file is being created. However, it is removed and exception is thrown. Is there any other information I should provide?

Libvirt package version is 7.8.0-2.1 and Qemu version is 6.1.0-33.1.

2

Qemu upgrade to 6.1.0-34.1 didn’t help. Trying to save virtual machine stille fails with same error.

3

I reported this upstream to libvirt developers. See https://gitlab.com/libvirt/libvirt-python/-/issues/9.

4

This issue was moved to Save of virtual machine fails (#236) · Issues · libvirt / libvirt · GitLab.

5

I received information that this saving failure occurs when using QXL graphincs for virtual machine. I do. I confirmed that this is the case. I was also informed that fix should come with next Qemu release from upstream.

6

This has been fixed upstream and fix has flowed down to Tumbleweed. My virtual machine guests can now survive host reboot.