Re: KVM selftests are failing

On Wed, 14 Nov 2018 at 19:08, Andrew Jones drjones@redhat.com wrote:

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,

Hi Drew, Ahmed,

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

What would be the difference in CONFIG_* fragments that you both have enabled?

Cheers, Anders