Hi Diego, thanks for the report! On Thu, Jan 24, 2019 at 01:57:31AM -0200, Diego Viola wrote: > [10499.577192] WARNING: CPU: 2 PID: 3487 at arch/x86/kvm/mmu.c:2066 > nonpaging_update_pte+0x5/0x10 [kvm] Seems like the nested-paging emulation got broken somewhere in the past. Can you try to load the KVM module in the guest with 'npt=0' and see if it works then? Thanks, Joerg