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From:   Andrew Jones <andrew.jones@linux.dev>
To:     Nikos Nikoleris <nikos.nikoleris@arm.com>
Cc:     kvm@vger.kernel.org, kvmarm@lists.linux.dev,
        Alexandru Elisei <alexandru.elisei@arm.com>, thuth@redhat.com
Subject: Re: [kvm-unit-tests] arm/arm64: psci_cpu_on_test failures with tcg
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On Wed, May 31, 2023 at 11:41:33AM +0100, Nikos Nikoleris wrote:
> Hi,
> 
> I noticed that in the latest master the psci_cpu_on_test fails randomly for
> both arm and arm64 with tcg.
> 
> If I do:
> 
> $> for i in `seq 1 100`; do ACCEL=tcg MAX_SMP=8 ./run_tests.sh psci; done |
> grep FAIL
> 
> About 10 of the 100 runs fail for the arm and arm64 builds of the test. I
> had a look and I am not sure I understand why. When I run the test with kvm,
> I don't get any failures. Does anyone have an idea what could be causing
> this?
> 

I've also seen this failure on QEMU several times, but never investigated
it. Now that the CI is running the tests under TCG the urgency of fixing
it is higher, but we could also drop the psci test from the CI for now...

Thanks,
drew