[ovirt-users] Re: Multiple GPU Passthrough with NVLink (Invalid I/O region)

Hi, In pass-through mode it is essential to assign all GPUs connected through NVLink to the same VM. If only a subset of these GPUs is assigned to a VM it triggers the unrecoverable error XID 74 during boot corrupting the NVLink state and rendering the NVLink bridge unusable. Therefore to avoid this issue ensure that all GPUs in the NVLink are passed through to the VM. Thanks