$> virsh start f26-devstack --console                                                          
Domain f26-devstack started                                                                    
Connected to domain f26-devstack                                                               
Escape character is ^]                                                                                                                                                                        [ 1323.605321] ------------[ cut here ]------------
[ 1323.608653] kernel BUG at arch/x86/kvm/x86.c:336!                                           
[ 1323.611661] invalid opcode: 0000 [#1] SMP                                                   
[ 1323.614221] Modules linked in: vhost_net vhost tap xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat tun bridge stp llc ebtable_filter ebtables ip6table_filter
ip6_tables sb_edac edac_core kvm_intel openvswitch nf_conntrack_ipv6 kvm nf_nat_ipv6 nf_nat_ipv4 nf_defrag_ipv6 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack irqbypass cr
ct10dif_pclmul sunrpc crc32_pclmul ppdev ghash_clmulni_intel parport_pc joydev virtio_net virtio_balloon parport tpm_tis i2c_piix4 tpm_tis_core tpm xfs libcrc32c virtio_blk virtio_console vi
rtio_rng crc32c_intel serio_raw virtio_pci ata_generic virtio_ring virtio pata_acpi qemu_fw_cfg
[ 1323.645674] CPU: 0 PID: 18587 Comm: CPU 0/KVM Not tainted 4.11.10-300.fc26.x86_64 #1
[ 1323.649592] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-1.fc27 04/01/2014
[ 1323.653935] task: ffff8b5be13ca580 task.stack: ffffa8b78147c000
[ 1323.656783] RIP: 0010:kvm_spurious_fault+0x9/0x10 [kvm]
[ 1323.659317] RSP: 0018:ffffa8b78147fc78 EFLAGS: 00010246
[ 1323.661808] RAX: 0000000000000000 RBX: ffff8b5be13c0000 RCX: 0000000000000000
[ 1323.665077] RDX: 0000000000006820 RSI: 0000000000000292 RDI: ffff8b5be13c0000
[ 1323.668287] RBP: ffffa8b78147fc78 R08: ffff8b5be13c0090 R09: 0000000000000000
[ 1323.671515] R10: ffffa8b78147fbf8 R11: 0000000000000000 R12: ffff8b5be13c0088
[ 1323.674598] R13: 0000000000000001 R14: 00000131e2372ee6 R15: ffff8b5be1360040
[ 1323.677643] FS:  00007fd602aff700(0000) GS:ffff8b5bffc00000(0000) knlGS:0000000000000000
[ 1323.681130] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1323.683628] CR2: 000055d650532c20 CR3: 0000000221260000 CR4: 00000000001426f0
[ 1323.686697] Call Trace:
[ 1323.687817]  intel_pmu_get_msr+0xd23/0x3f44 [kvm_intel]
[ 1323.690151]  ? vmx_interrupt_allowed+0x19/0x40 [kvm_intel]
[ 1323.692583]  kvm_arch_vcpu_runnable+0xa5/0xe0 [kvm]
[ 1323.694767]  kvm_vcpu_check_block+0x12/0x50 [kvm]
[ 1323.696858]  kvm_vcpu_block+0xa3/0x2f0 [kvm]
[ 1323.698762]  kvm_arch_vcpu_ioctl_run+0x165/0x16a0 [kvm]
[ 1323.701079]  ? kvm_arch_vcpu_load+0x6d/0x290 [kvm]
[ 1323.703175]  ? __check_object_size+0xbb/0x1b3
[ 1323.705109]  kvm_vcpu_ioctl+0x2a6/0x620 [kvm]
[ 1323.707021]  ? kvm_vcpu_ioctl+0x2a6/0x620 [kvm]
[ 1323.709006]  do_vfs_ioctl+0xa5/0x600
[ 1323.710570]  SyS_ioctl+0x79/0x90
[ 1323.712011]  entry_SYSCALL_64_fastpath+0x1a/0xa9
[ 1323.714033] RIP: 0033:0x7fd610fb35e7
[ 1323.715601] RSP: 002b:00007fd602afe7c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 1323.718869] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fd610fb35e7
[ 1323.721972] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000013
[ 1323.725044] RBP: 0000563dab190300 R08: 0000563dab1ab7d0 R09: 01fc2de3f821e99c
[ 1323.728124] R10: 000000003b9aca00 R11: 0000000000000246 R12: 0000563dadce20a6
[ 1323.731195] R13: 0000000000000000 R14: 00007fd61a84c000 R15: 0000563dadce2000
[ 1323.734268] Code: 8d 00 00 01 c7 05 1c e6 05 00 01 00 00 00 41 bd 01 00 00 00 44 8b 25 2f e6 05 00 e9 db fe ff ff 66 90 0f 1f 44 00 00 55 48 89 e5 <0f> 0b 0f 1f 44 00 00 0f 1f 44 00 00 55
 89 ff 48 89 e5 41 54 53
[ 1323.742385] RIP: kvm_spurious_fault+0x9/0x10 [kvm] RSP: ffffa8b78147fc78
[ 1323.745438] ---[ end trace 92fa23c974db8b7e ]---