Hi community!
 
I have 4 hosts: 2 old servers and 2 new servers
I have this error trying to migrate VM from new host to old one.
 
Oct 11 09:25:05 node69-06 journal: unsupported configuration: Unable to find security driver for model selinux
Oct 11 09:25:05 node69-06 journal: vdsm vm.Vm ERROR vmId=`a9473a99-32c6-4548-8b85-dafe4ce8f94f`::unsupported configuration: Unable to find security driver for model selinux
Oct 11 09:25:05 node69-06 journal: vdsm vm.Vm ERROR vmId=`a9473a99-32c6-4548-8b85-dafe4ce8f94f`::Failed to migrate#012Traceback (most recent call last):#012  File "/usr/share/vdsm/virt/migration.py", line 246, in run#012    self._startUnderlyingMigration(time.time())#012  File "/usr/share/vdsm/virt/migration.py", line 335, in _startUnderlyingMigration#012    None, maxBandwidth)#012  File "/usr/share/vdsm/virt/vm.py", line 703, in f#012    ret = attr(*args, **kwargs)#012  File "/usr/lib/python2.7/site-packages/vdsm/libvirtconnection.py", line 119, in wrapper#012    ret = f(*args, **kwargs)#012  File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1825, in migrateToURI2#012    if ret == -1: raise libvirtError ('virDomainMigrateToURI2() failed', dom=self)#012libvirtError: unsupported configuration: Unable to find security driver for model selinux
 
Migration from OLD host to another OLD host have not any problems.
Migration from NEW host to another NEW host have not any problems.
Migration from OLD host to NEW host have not any problems.
 
Migration is not work only from NEW to OLD.
 
oVirt Engine Version: 3.5.6.2-1.el6
 
All hosts:
OS Version: RHEL - 7 - 2.1511.el7.centos.2.10
Kernel Version: 3.10.0 - 327.36.1.el7.x86_64
KVM Version: 2.3.0 - 29.1.el7
LIBVIRT Version: libvirt-1.2.17-13.el7_2.5
VDSM Version: vdsm-4.16.30-0.el7.centos
 
Any ideas? Thx.