Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/vdsm/utils.py", line 736, in wrapper
    return f(*a, **kw)
  File "/usr/share/vdsm/virt/vm.py", line 5278, in run
    self.tryPivot()
  File "/usr/share/vdsm/virt/vm.py", line 5247, in tryPivot
    ret = self.vm._dom.blockJobAbort(self.drive.name, flags)
  File "/usr/share/vdsm/virt/virdomain.py", line 68, in f
    ret = attr(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/vdsm/libvirtconnection.py", line 124, in wrapper
    ret = f(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/vdsm/utils.py", line 1313, in wrapper
    return func(inst, *args, **kwargs)
  File "/usr/lib64/python2.7/site-packages/libvirt.py", line 733, in blockJobAbort
    if ret == -1: raise libvirtError ('virDomainBlockJobAbort() failed', dom=self)
libvirtError: block copy still active: disk 'vdb' not ready for pivot yet