linux-kernel - [KVM] 6b6a864bd7: kernel-selftests.kvm.vmx_tsc_adjust

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Message-ID: <20200511010926.GV5770@shao2-debian>
Date:   Mon, 11 May 2020 09:09:26 +0800
From:   kernel test robot <rong.a.chen@...el.com>
To:     Sean Christopherson <sean.j.christopherson@...el.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, lkp@...ts.01.org,
        xudong.hao@...el.com
Subject: [KVM] 6b6a864bd7: kernel-selftests.kvm.vmx_tsc_adjust_test.fail

Greeting,

FYI, we noticed the following commit (built with gcc-7):

commit: 6b6a864bd7d7eb12a82ec6da1c2dd97a43f79449 ("[PATCH v2] KVM: nVMX: Tweak handling of failure code for nested VM-Enter failure")
url: https://github.com/0day-ci/linux/commits/Sean-Christopherson/KVM-nVMX-Tweak-handling-of-failure-code-for-nested-VM-Enter-failure/20200429-052911
base: https://git.kernel.org/cgit/virt/kvm/kvm.git linux-next

in testcase: kernel-selftests
with following parameters:

	group: kselftests-kvm
	ucode: 0x500002c

test-description: The kernel contains a set of "self tests" under the tools/testing/selftests/ directory. These are intended to be small unit tests to exercise individual code paths in the kernel.
test-url: https://www.kernel.org/doc/Documentation/kselftest.txt


on test machine: 192 threads Intel(R) Xeon(R) Platinum 9242 CPU @ 2.30GHz with 192G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


If you fix the issue, kindly add following tag
Reported-by: kernel test robot <rong.a.chen@...el.com>



# selftests: kvm: vmx_tsc_adjust_test
# ==== Test Assertion Failure ====
#   x86_64/vmx_tsc_adjust_test.c:153: false
#   pid=12157 tid=12157 - Interrupted system call
#      1	0x000000000040116a: main at vmx_tsc_adjust_test.c:153
#      2	0x00007fafd54bce0a: ?? ??:0
#      3	0x00000000004011e9: _start at ??:?
#   Failed guest assert: (vmreadz(VM_EXIT_REASON) == (0x80000000 | 33))
# IA32_TSC_ADJUST is -4294972240 (-1 * TSC_ADJUST_VALUE + -4944).
not ok 14 selftests: kvm: vmx_tsc_adjust_test # exit=254


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml



Thanks,
Rong Chen


View attachment "config-5.6.0-08409-g6b6a864bd7d7eb" of type "text/plain" (203741 bytes)

View attachment "job-script" of type "text/plain" (6301 bytes)

Download attachment "kmsg.xz" of type "application/x-xz" (39812 bytes)

View attachment "kernel-selftests" of type "text/plain" (66576 bytes)

View attachment "job.yaml" of type "text/plain" (5401 bytes)

View attachment "reproduce" of type "text/plain" (166 bytes)