** Description changed:

  This issue was first spotted on Mar.16 [1]
  
- The ubuntu_kvm_unit_tests will be interrupted on X-oracle-4.15, this is
- not a regression since it can be reproduced with 4.15.0-1031-oracle
- #34~16.04.1:
+ The ubuntu_kvm_unit_tests will be interrupted on X-oracle-4.15 on both
+ VM.Standard2.1 and VM.Standard2.16, this is not a regression since it
+ can be reproduced with 4.15.0-1031-oracle #34~16.04.1:
  
  Running 
'/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/vmx_nm_test'
   BUILD_HEAD=4671e4ba
   timeout -k 1s --foreground 30 /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 
/tmp/tmp.da3iFrsCzC -smp 1 -cpu host,+vmx -append vmx_nm_test # -initrd 
/tmp/tmp.h2DFw8L0AF
   enabling apic
   paging enabled
   cr0 = 80010011
   cr3 = 477000
   cr4 = 20
  
   Test suite: vmx_nm_test
  client_loop: send disconnect: Broken pipe
  (node disconnected here)
  
  Before the test started, this can be found in syslog:
  Apr 13 06:26:25 selfprovisioned-phlin-kvm-unit kernel: [ 1073.529005] L1TF 
CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and 
https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for 
details.
  
  After that, noting was printed and node disconnected.
  
  If you try to run this case manually, it will stop at:
  # ./vmx_nm_test
  BUILD_HEAD=4671e4ba
  ready!!!
  timeout -k 1s --foreground 30 /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 /tmp/tmp.ZcGrnXu6se -smp 1 
-cpu host,+vmx -append vmx_nm_test # -initrd /tmp/tmp.ADjEOAcRKM
  enabling ap
  (stopped here, even the "enabling apic" string was not printed)
  
  It looks like this is a new test case added since the cycle of
  4.15.0-1037.41~16.04.1-oracle
  
  [1] https://bugs.launchpad.net/ubuntu-kernel-
  tests/+bug/1867623/comments/2
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.15.0-1031-oracle 4.15.0-1031.34~16.04.1
  ProcVersionSignature: User Name 4.15.0-1031.34~16.04.1-oracle 4.15.18
  Uname: Linux 4.15.0-1031-oracle x86_64
  ApportVersion: 2.20.1-0ubuntu2.21
  Architecture: amd64
  Date: Mon Apr 13 05:18:03 2020
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-signed-oracle
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1872401

Title:
  vmx_nm_test in ubuntu_kvm_unit_tests interrupted on X-oracle-4.15

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