linux-kernel - Re: [KVM] 671ddc700f: kvm-unit-tests.vmx.fail

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Date:   Wed, 6 Nov 2019 22:45:48 +0800
From:   Oliver Sang <oliver.sang@...el.com>
To:     Jim Mattson <jmattson@...gle.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>, Dan Cross <dcross@...gle.com>,
        Peter Shier <pshier@...gle.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        lkp@...ts.01.org
Subject: Re: [KVM] 671ddc700f: kvm-unit-tests.vmx.fail

On Wed, Oct 30, 2019 at 09:56:16AM -0700, Jim Mattson wrote:
> On Wed, Oct 30, 2019 at 7:16 AM kernel test robot <oliver.sang@...el.com> wrote:
> >
> > FYI, we noticed the following commit (built with gcc-7):
> >
> > commit: 671ddc700fd08b94967b1e2a937020e30c838609 ("KVM: nVMX: Don't leak L1 MMIO regions to L2")
> > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
> >
> > in testcase: kvm-unit-tests
> > with following parameters:
> >
> >         ucode: 0x27
> >
> >
> >
> > on test machine: 8 threads Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz with 8G memory
> >
> > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
> >
> >
> >
> >
> > If you fix the issue, kindly add following tag
> > Reported-by: kernel test robot <oliver.sang@...el.com>
> >
> > 2019-10-29 16:17:51 ./run_tests.sh
> >  [32mPASS [0m apic-split (53 tests)
> >  [32mPASS [0m ioapic-split (19 tests)
> >  [32mPASS [0m apic (53 tests)
> >  [32mPASS [0m ioapic (19 tests)
> >  [32mPASS [0m smptest (1 tests)
> >  [32mPASS [0m smptest3 (1 tests)
> >  [32mPASS [0m vmexit_cpuid
> >  [32mPASS [0m vmexit_vmcall
> >  [32mPASS [0m vmexit_mov_from_cr8
> >  [32mPASS [0m vmexit_mov_to_cr8
> >  [32mPASS [0m vmexit_inl_pmtimer
> >  [32mPASS [0m vmexit_ipi
> >  [32mPASS [0m vmexit_ipi_halt
> >  [32mPASS [0m vmexit_ple_round_robin
> >  [32mPASS [0m vmexit_tscdeadline
> >  [32mPASS [0m vmexit_tscdeadline_immed
> >  [32mPASS [0m access
> >  [33mSKIP [0m smap (0 tests)
> >  [33mSKIP [0m pku (0 tests)
> >  [32mPASS [0m asyncpf (1 tests)
> >  [32mPASS [0m emulator (125 tests, 2 skipped)
> >  [32mPASS [0m eventinj (13 tests)
> >  [32mPASS [0m hypercall (2 tests)
> >  [32mPASS [0m idt_test (4 tests)
> >  [32mPASS [0m memory (8 tests)
> >  [32mPASS [0m msr (12 tests)
> >  [32mPASS [0m pmu (67 tests)
> >  [31mFAIL [0m vmware_backdoors (11 tests, 5 unexpected failures)
> >  [32mPASS [0m port80
> >  [32mPASS [0m realmode
> >  [32mPASS [0m s3
> >  [32mPASS [0m sieve
> >  [32mPASS [0m syscall (2 tests)
> >  [32mPASS [0m tsc (3 tests)
> >  [32mPASS [0m tsc_adjust (5 tests)
> >  [32mPASS [0m xsave (17 tests)
> >  [32mPASS [0m rmap_chain
> >  [33mSKIP [0m svm (0 tests)
> >  [33mSKIP [0m taskswitch (i386 only)
> >  [33mSKIP [0m taskswitch2 (i386 only)
> >  [32mPASS [0m kvmclock_test
> >  [32mPASS [0m pcid (3 tests)
> >  [32mPASS [0m rdpru (1 tests)
> >  [32mPASS [0m umip (21 tests)
> >  [31mFAIL [0m vmx (timeout; duration=90s)
> >  [33mSKIP [0m ept (0 tests)
> >  [33mSKIP [0m vmx_eoi_bitmap_ioapic_scan (1 tests, 1 skipped)
> >  [33mSKIP [0m vmx_hlt_with_rvi_test (1 tests, 1 skipped)
> >  [33mSKIP [0m vmx_apicv_test (2 tests, 2 skipped)
> >  [32mPASS [0m vmx_apic_passthrough_thread (8 tests)
> >  [32mPASS [0m vmx_init_signal_test (8 tests)
> >  [32mPASS [0m vmx_vmcs_shadow_test (142218 tests)
> >  [32mPASS [0m debug (11 tests)
> >  [32mPASS [0m hyperv_synic (1 tests)
> >  [33mSKIP [0m hyperv_connections (1 tests, 1 skipped)
> >  [32mPASS [0m hyperv_stimer (12 tests)
> >  [32mPASS [0m hyperv_clock
> >  [32mPASS [0m intel_iommu (11 tests)
> >
> >
> >
> > To reproduce:
> >
> >         git clone https://github.com/intel/lkp-tests.git
> >         cd lkp-tests
> >         bin/lkp install job.yaml  # job file is attached in this email
> >         bin/lkp run     job.yaml
> >
> >
> >
> > Thanks,
> > Oliver Sang
> 
> It's unclear to me what the delta is, but I do see that the 'vmx'
> suite has failed. That is to be expected if you're getting your
> kvm-unit-tests from the 'master' branch of the kvm-unit-tests repo.
> You will need commit 591b5b54bba1 ("x86: Skip APIC-access address
> tests beyond mapped RAM"), which is in the 'next' branch of the
> kvm-unit-tests repo, but which has not yet made it to the 'master'
> branch.

Thanks for information! We will wait for master upgrade to update our test binary.