Re: [ARM64] status of MTE selftests?

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On Mon, May 09 2022, Cornelia Huck <cohuck@xxxxxxxxxx> wrote:

> On Fri, May 06 2022, Mark Brown <broonie@xxxxxxxxxx> wrote:
>
>> On Fri, May 06, 2022 at 04:50:41PM +0200, Cornelia Huck wrote:
>>
>>> I'm currently trying to run the MTE selftests on the FVP simulator (Base
>>> Model)[1], mainly to verify things are sane on the host before wiring up
>>> the KVM support in QEMU. However, I'm seeing some failures (the non-mte
>>> tests seemed all fine):
>>
>>> Are the MTE tests supposed to work on the FVP model? Something broken in
>>> my config? Anything I can debug?
>>
>> I would expect them to work, they seemed happy when I was doing
>> the async mode support IIRC and a quick spin with -next in qemu
>> everything seems fine, I'm travelling so don't have the
>> environment for models to hand right now.
>
> Thanks; I think that points to some setup/config problem on my side,
> then :/ (I ran the selftests under QEMU's tcg emulation, and while it
> looks better, I still get timeouts for check_gcr_el1_cswitch and
> check_user_mem.)

...so these two tests are simply very slow; if I run them directly, they
take longer than 45s, but eventually finish. So all seems good (in a
slow way) on QEMU + tcg.

On the simulator, running check_gcr_el1_cswitch directly finishes
successfully after several minutes as well; however, I get all the other
failures in tests that I reported in my first mail even when I run them
directly.




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