linux-kernel - Re: KVM selftests are failing

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Date:   Wed, 14 Nov 2018 19:08:07 +0100
From:   Andrew Jones <drjones@...hat.com>
To:     Ahmed Soliman <ahmedsoliman@...a.vt.edu>
Cc:     Shuah Khan <shuah@...nel.org>, linux-kselftest@...r.kernel.org,
        Paolo Bonzini <pbonzini@...hat.com>,
        Peter Xu <peterx@...hat.com>,
        Anders Roxell <anders.roxell@...aro.org>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        linux-kernel@...r.kernel.org
Subject: Re: KVM selftests are failing

On Wed, Nov 14, 2018 at 05:30:28PM +0200, Ahmed Soliman wrote:
> Hello,
> 
> KVM Self tests located at tools/testing/selftests/kvm seams to be failing.
> I have tried:
>  - dirty_log_test
>  - x86_64/cr4_cpuid_sync_test
>  - x86_64/evmcs_test
>  - x86_64/platform_info_test
>  - x86_64/set_sregs_test
>  - x86_64/state_test
>  - x86_64/sync_regs_test
>  - x86_64/vmx_tsc_adjust_test
> 
> All of them triggered the following assert:
> 
>         ==== Test Assertion Failure ====
>         lib/kvm_util.c:596: ret == 0
>         pid=24507 tid=24507 - Invalid argument
>             1  0x000056360774e468: ?? ??:0
>             2  0x000056360774e609: ?? ??:0
>             3  0x00005636077537a0: ?? ??:0
>             4  0x000056360774d35e: ?? ??:0
>             5  0x00007f3117571ae6: ?? ??:0
>             6  0x000056360774d4a9: ?? ??:0
>         madvise failed,
>         addr: 0x7f3117350000
>         length: 0x200000
>         src_type: 0
> 
> I have tried the tests on both kvm(next) branch
> commit 22a7cdcae6a4a3c89748 as well as
> torvald's master  4.20-rc2.

Hi Ahmed,

I couldn't reproduce this on a Westmere. Are you sure you're testing
a clean compilation? Can you bisect the kernel?

Thanks,
drew