Hello, on my 'converted' cluster from 3.4 to 3.5 I cannot run any of my Windows VMs any more witch where existing also in 3.4. I get: internal error NUMA memory tuning in 'preferred' mode only supports single node. The problem: NUMA is not enabled on that VM. However, if I enable NUMA and pin it to a node, then the VM runs... engine.log http://pastebin.com/152tYjn3 vdsm.log from the host: Thread-525::WARNING::2014-10-23 15:18:53,225::vm::5311::vm.Vm::(_getUnderlyingDriveInfo) vmId=`a34ace0d-f3f8-49c2-8c9d-b1be877a47fb`::updating drive scsi0-0-0-0 path from /rhev/data-center/00000002-0002-0002-0002-0000000003a0/e3b7a377-22d5-47b4-b753-7b42db00ce61/images/ac56c16d-8208-4c02-9a60-991f2f5570ab/d02e9f42-cacd-4a7c-887c-86c27fd045bc to /rhev/data-center/mnt/192.168.50.11:_volumes_tank_ovirt-data01/e3b7a377-22d5-47b4-b753-7b42db00ce61/images/ac56c16d-8208-4c02-9a60-991f2f5570ab/d02e9f42-cacd-4a7c-887c-86c27fd045bc Thread-525::WARNING::2014-10-23 15:18:53,236::vm::5332::vm.Vm::(_getUnderlyingDriveInfo) vmId=`a34ace0d-f3f8-49c2-8c9d-b1be877a47fb`::updating drive scsi0-0-0-0 config path from /rhev/data-center/00000002-0002-0002-0002-0000000003a0/e3b7a377-22d5-47b4-b753-7b42db00ce61/images/ac56c16d-8208-4c02-9a60-991f2f5570ab/d02e9f42-cacd-4a7c-887c-86c27fd045bc to /rhev/data-center/mnt/192.168.50.11:_volumes_tank_ovirt-data01/e3b7a377-22d5-47b4-b753-7b42db00ce61/images/ac56c16d-8208-4c02-9a60-991f2f5570ab/d02e9f42-cacd-4a7c-887c-86c27fd045bc Thread-125036::WARNING::2014-10-24 18:53:15,093::fileUtils::149::Storage.fileUtils::(createdir) Dir /var/run/vdsm/storage/e3b7a377-22d5-47b4-b753-7b42db00ce61 already exists Thread-125036::ERROR::2014-10-24 18:53:15,815::vm::2326::vm.Vm::(_startUnderlyingVm) vmId=`918e4922-b650-4f71-b6a2-2ed425baa847`::The vm start process failed Thread-94998::WARNING::2014-10-24 18:53:17,354::vm::1955::vm.Vm::(_set_lastStatus) vmId=`918e4922-b650-4f71-b6a2-2ed425baa847`::trying to set state to Powering down when already Down Thread-94998::WARNING::2014-10-24 18:53:17,359::utils::128::root::(rmFile) File: /var/lib/libvirt/qemu/channels/918e4922-b650-4f71-b6a2-2ed425baa847.com.redhat.rhevm.vdsm already removed Thread-94998::WARNING::2014-10-24 18:53:17,359::utils::128::root::(rmFile) File: /var/lib/libvirt/qemu/channels/918e4922-b650-4f71-b6a2-2ed425baa847.org.qemu.guest_agent.0 already removed -- Daniel Helgenberger m box bewegtbild GmbH P: +49/30/2408781-22 F: +49/30/2408781-10 ACKERSTR. 19 D-10115 BERLIN www.m-box.de www.monkeymen.tv Geschäftsführer: Martin Retschitzegger / Michaela Göllner Handeslregister: Amtsgericht Charlottenburg / HRB 112767