linux-kernel - Re: [KVM] db16e9b28b: kvm-unit-tests.pmu.fail

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Message-ID: <20220524133604.GA34870@xsang-OptiPlex-9020>
Date:   Tue, 24 May 2022 21:36:05 +0800
From:   Oliver Sang <oliver.sang@...el.com>
To:     Like Xu <like.xu.linux@...il.com>
Cc:     0day robot <lkp@...el.com>, LKML <linux-kernel@...r.kernel.org>,
        lkp@...ts.01.org, Paolo Bonzini <pbonzini@...hat.com>,
        Jim Mattson <jmattson@...gle.com>,
        Sean Christopherson <seanjc@...gle.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org
Subject: Re: [KVM] db16e9b28b: kvm-unit-tests.pmu.fail

Hi Like Xu,

On Sun, May 15, 2022 at 05:25:21PM +0800, Like Xu wrote:
> On 15/5/2022 5:22 pm, kernel test robot wrote:
> > patch link:https://lore.kernel.org/kvm/20220509102204.62389-2-likexu@tencent.com
> 
> Fixed by the V2 version. Please help try.

we tested the V2 version and could not reproduce pmu.fail on it:

=========================================================================================
compiler/kconfig/rootfs/tbox_group/testcase/ucode:
  gcc-11/x86_64-rhel-8.3-func/debian-10.4-x86_64-20200603.cgz/lkp-hsw-d02/kvm-unit-tests/0x28

commit:
  bec9b596f911 ("KVM: x86/pmu: Ignore pmu->global_ctrl check if vPMU doesn't support global_ctrl")
  db16e9b28b05 ("KVM: x86/pmu: Don't pre-set the pmu->global_ctrl when refreshing")
  3fa1b82c692b ("KVM: x86/pmu: Don't pre-set the pmu->global_ctrl when refreshing") v2

bec9b596f911252e db16e9b28b05f069d01b76886b6 3fa1b82c692b513878a23e07efc
---------------- --------------------------- ---------------------------
       fail:runs  %reproduction    fail:runs  %reproduction    fail:runs
           |             |             |             |             |
           :6           50%           3:3            0%            :10    kvm-unit-tests.pmu.fail