[Bug 216177] New: kvm-unit-tests vmx has about 60% of failure chance

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=216177

            Bug ID: 216177
           Summary: kvm-unit-tests vmx has about 60% of failure chance
           Product: Virtualization
           Version: unspecified
    Kernel Version: 5.19-rc1
          Hardware: Intel
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: kvm
          Assignee: virtualization_kvm@kernel-bugs.osdl.org
          Reporter: lixiao.yang@intel.com
        Regression: No

Created attachment 301281
  --> https://bugzilla.kernel.org/attachment.cgi?id=301281&action=edit
vmx failure log

Environment:
CPU Architecture: x86_64
Host OS: Red Hat Enterprise Linux 8.4 (Ootpa)
Host kernel: 5.19.0-rc1
gcc: gcc version 8.4.1
Host kernel source: https://git.kernel.org/pub/scm/virt/kvm/kvm.git
Branch: next
Commit: 4b88b1a518b337de1252b8180519ca4c00015c9e

Qemu source: https://git.qemu.org/git/qemu.git
Branch: master
Commit: 40d522490714b65e0856444277db6c14c5cc3796

kvm-unit-tests source: https://gitlab.com/kvm-unit-tests/kvm-unit-tests.git
Branch: master
Commit: ca85dda2671e88d34acfbca6de48a9ab32b1810d

Bug Detailed Description:
kvm-unit-tests vmx has about 60% of chance to fail. In my case, failure
happened 6 times out of 10 times of tests. 

Reproducing Steps:
rmmod kvm_intel
modprobe kvm_intel nested=Y
git clone https://gitlab.com/kvm-unit-tests/kvm-unit-tests.git
cd kvm-unit-tests
./configure
make standalone
cd tests
./vmx -cpu host

Actual Result:
...
SUMMARY: 430101 tests, 1 unexpected failures, 2 expected failures, 4 skipped
FAIL vmx (430101 tests, 1 unexpected failures, 2 expected failures, 4 skipped)

Expected Result:
...
SUMMARY: 430101 tests, 2 expected failures, 4 skipped
PASS vmx (430101 tests, 2 expected failures, 4 skipped)

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