> On 11 Oct 2016, at 08:49, Николаев Алексей <alexeynikolaev.p...@yandex.ru> 
> wrote:
> 
> 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.

You likely have different SELinux status on each host. Make sure it’s enabled 
on both sides (or disabled on both, but that’s discouraged)

Thanks,
michal

>  
> 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.
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