Re: S390 testing for IOMMUFD

Anthony Krowiak
2022-11-09T19:13:40Z

On 11/9/22 11:12 AM, Jason Gunthorpe wrote:
> 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?

Just in case you missed my response to my previous email, the problems I
was seeing were due to using a set regression tests that I patched to
try to improve the tests performance. When I ran the vanilla tests they
ran successfully without any problems with your patch. I will continue
testing but as of now, it looks good to me.

>
> Thanks,
> Jason