[libvirt-users] block-commit fails

[Fırat KÜÇÜK]

Hello,

one of my VM's blockcommit job always fails. How can I find the reason? 
Error message is not clear.

virsh snapshot-create-as --domain my-vm backup-snapshot \
     --diskspec vda,file=/foo/my-vm-snapshot.img \
     --disk-only --atomic --no-metadata

virsh blockcommit my-vm vda --active --verbose --wait --async
virsh blockjob my-vm vda --pivot


internal error: unable to execute QEMU command 'block-job-complete': The 
active block job for device 'drive-virtio-disk0' cannot be completed


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