linux-kernel - Re: kvm-unit-tests hang on Arm FVP with protected mode

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Message-ID: <345e42db-eabd-4e34-abf5-d9974dfe55d1@sirena.org.uk>
Date: Fri, 5 Sep 2025 14:38:41 +0100
From: Mark Brown <broonie@...nel.org>
To: Marc Zyngier <maz@...nel.org>
Cc: Naresh Kamboju <naresh.kamboju@...aro.org>, kvmarm@...ts.linux.dev,
	Linux ARM <linux-arm-kernel@...ts.infradead.org>,
	open list <linux-kernel@...r.kernel.org>,
	lkft-triage@...ts.linaro.org,
	Linux Regressions <regressions@...ts.linux.dev>,
	Fuad Tabba <tabba@...gle.com>, Paolo Bonzini <pbonzini@...hat.com>,
	Oliver Upton <oliver.upton@...ux.dev>,
	James Morse <james.morse@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Anders Roxell <anders.roxell@...aro.org>,
	Arnd Bergmann <arnd@...db.de>,
	Dan Carpenter <dan.carpenter@...aro.org>,
	Ben Copeland <benjamin.copeland@...aro.org>,
	Aishwarya TCV <Aishwarya.TCV@....com>
Subject: Re: kvm-unit-tests hang on Arm FVP with protected mode

On Fri, Sep 05, 2025 at 01:42:07PM +0100, Marc Zyngier wrote:
> Naresh Kamboju <naresh.kamboju@...aro.org> wrote:

> > INFO: running kvm unit tests ...
> > + [ True = false ]
> > + ./run_tests.sh -a -t -v
> > + tee -a /lava-1/0/tests/0_kvm-unit-tests/automated/linux/kvm-unit-tests/output/result_log.txt
> > TAP version 13

> What do you expect us to do with such a non-report? Can you please, at
> the very least, identify which test in that test suite triggers the
> failure?

Looking at the log file that isn't password protected that's the last
line of output so it'll have hung trying to do the first test, based on
the log from another machine:

   https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250905/testrun/29777055/suite/kvm-unit-tests/test/debug-bp-migration-timeout-duration90s/log

it seems that should be

   ok 1 - selftest-setup: selftest: setup: smp: number of CPUs matches expectation

that's died for the version they're using.

> > Links:
> > https://regressions.linaro.org/lkft/linux-mainline-master/v6.17-rc4/lava/kvm-unit-tests/history/?page=1

> What is there? This link requires a login, and goes to 11 on the
> scale of being useless.

My Linaro account appears to have been disabled at some point so I
can't access it either.  If this is affecting mainline presumably it's
been an issue in at least -next for a while.

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