Re: KVM selftests are failing

From: Anders Roxell
Date: Wed Nov 14 2018 - 13:19:58 EST


On Wed, 14 Nov 2018 at 19:08, Andrew Jones <drjones@xxxxxxxxxx> 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