Re: KVM selftests are failing

From: Vitaly Kuznetsov
Date: Fri Nov 16 2018 - 08:37:02 EST


Ahmed Soliman <ahmedsoliman@xxxxxxxxxxx> writes:

> Hello once again,
>
> I noticed that there is still more problems with kvmself test (at
> least on my machine)
>
> Any test that would successfully reach the guest's code immediately
> VMexit by a shutdown.
>
> $ ./vmx_tsc_adjust_test
> ==== Test Assertion Failure ====
> x86_64/vmx_tsc_adjust_test.c:156: run->exit_reason == KVM_EXIT_IO
> pid=8499 tid=8499 - Success
> 1 0x00005604f07bd36c: ?? ??:0
> 2 0x00007f5c0dc53ae6: ?? ??:0
> 3 0x00005604f07bd4b9: ?? ??:0
> Got exit_reason other than KVM_EXIT_IO: 8 (SHUTDOWN)
>

Hm, this is weird. Do other KVM users, e.g. qemu work on this host? Are
you sure this happens on the first VCPU_RUN invocation?

Could you try doing

trace-cmd record -e kvm ./x86_64/vmx_tsc_adjust_test && trace-cmd report

to see if there's anything suspicious?

--
Vitaly