This can be reproduced with 4.14 kernel too (4.14.0-1004-azure-edge)

# TESTNAME=vmx_controls TIMEOUT=90s ACCEL= ./x86/run x86/vmx.flat -smp 1 -cpu 
host,+vmx -m 2560 -append vmx_controls_test
timeout -k 1s --foreground 90s /usr/bin/qemu-system-x86_64 -nodefaults -device 
pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none -serial 
stdio -device pci-testdev -machine accel=kvm -kernel x86/vmx.flat -smp 1 -cpu 
host,+vmx -m 2560 -append vmx_controls_test # -initrd /tmp/tmp.hLPCQz4FAE
enabling apic

paging enabled
cr0 = 80010011
cr3 = 46b00


** Summary changed:

- vmx_controls test in kvm-unit-test will crash E4v3 azure node
+ vmx_controls test in kvm-unit-test will crash E4v3 azure node with 4.13 / 
4.14 kernel

** Description changed:

  Reproduce rate: 4 out of 4
  
  Steps:
  1. git clone --depth=1 
https://git.kernel.org/pub/scm/virt/kvm/kvm-unit-tests.git
  2. cd kvm-unit-tests; ./configure; make
  3. Run the vmx_controls test as root:
  TESTNAME=vmx_controls TIMEOUT=90s ACCEL= ./x86/run x86/vmx.flat -smp 1 -cpu 
host,+vmx -m 2560 -append vmx_controls_test
  
  A side note is that the ubuntu_kvm_smoke_test can pass on this system
  (kvm is supported)
  
  Result:
  * It seems that the node will crash and reboot itself, output:
  timeout -k 1s --foreground 90s /usr/bin/qemu-system-x86_64 -nodefaults 
-device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none 
-serial stdio -device pci-testdev -machine accel=kvm -kernel x86/vmx.flat -smp 
1 -cpu host,+vmx -m 2560 -append vmx_controls_test # -initrd /tmp/tmp.rn9YgIF5XM
  enabling apic
  paging enabled
  cr0 = 80010011
  cr3
  
  The cr3 is the last thing that I could see from the terminal.
  
+ I don't think this is a regression, check the test report history the
+ E4v3 node didn't pass this test from the very beginning. We will need to
+ fix our test to make it easier to spot this.
+ 
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.13.0-1009-azure 4.13.0-1009.12
  ProcVersionSignature: User Name 4.13.0-1009.12-username 4.13.13
  Uname: Linux 4.13.0-1009-azure x86_64
  ApportVersion: 2.20.1-0ubuntu2.15
  Architecture: amd64
  Date: Wed Feb  7 10:45:34 2018
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-azure
  UpgradeStatus: No upgrade log present (probably fresh install)

** Description changed:

  Reproduce rate: 4 out of 4
  
  Steps:
  1. git clone --depth=1 
https://git.kernel.org/pub/scm/virt/kvm/kvm-unit-tests.git
  2. cd kvm-unit-tests; ./configure; make
  3. Run the vmx_controls test as root:
  TESTNAME=vmx_controls TIMEOUT=90s ACCEL= ./x86/run x86/vmx.flat -smp 1 -cpu 
host,+vmx -m 2560 -append vmx_controls_test
  
  A side note is that the ubuntu_kvm_smoke_test can pass on this system
  (kvm is supported)
  
  Result:
  * It seems that the node will crash and reboot itself, output:
  timeout -k 1s --foreground 90s /usr/bin/qemu-system-x86_64 -nodefaults 
-device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none 
-serial stdio -device pci-testdev -machine accel=kvm -kernel x86/vmx.flat -smp 
1 -cpu host,+vmx -m 2560 -append vmx_controls_test # -initrd /tmp/tmp.rn9YgIF5XM
  enabling apic
  paging enabled
  cr0 = 80010011
  cr3
  
  The cr3 is the last thing that I could see from the terminal.
  
  I don't think this is a regression, check the test report history the
- E4v3 node didn't pass this test from the very beginning. We will need to
- fix our test to make it easier to spot this.
+ E4v3 node didn't pass this test from the very beginning (marked as
+ untested, I think it's because the test crashed, so the build task was
+ marked as failed on jenkins).
+ 
+ We will need to fix our test to make it easier to spot this.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.13.0-1009-azure 4.13.0-1009.12
  ProcVersionSignature: User Name 4.13.0-1009.12-username 4.13.13
  Uname: Linux 4.13.0-1009-azure x86_64
  ApportVersion: 2.20.1-0ubuntu2.15
  Architecture: amd64
  Date: Wed Feb  7 10:45:34 2018
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-azure
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1747892

Title:
  vmx_controls test in kvm-unit-test will crash E4v3 azure node with
  4.13 / 4.14 kernel

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