Re: S390 testing for IOMMUFD

Jason Gunthorpe
2022-11-09T16:12:28Z

On Wed, Nov 09, 2022 at 09:49:01AM -0500, Anthony Krowiak wrote:
> I cloned the https://lore.kernel.org/kvm/Y2q3nFXwOk9jul5u@nvidia.com/T/#m76a9c609c5ccd1494c05c6f598f9c8e75b7c9888
> repo and ran the vfio_ap test cases. The tests ran without encountering the
> errors related to the vfio_pin_pages() function

I updated the git repos with this change now

> but I did see two tests fail attempting to run crypto tests on the
> guest. I also saw a WARN_ON stack trace in the dmesg output
> indicating a timeout occurred trying to verify the completion of a
> queue reset. The reset problem has reared its ugly head in our CI,
> so this may be a good thing as it will allow me to debug why its
> happening.

Please let me know if you think this is iommufd related, from your
description it sounds like an existing latent bug?

Thanks,
Jason