Hi Janusz, On Mon, Apr 24, 2023 at 02:35:24PM +0200, Janusz Krzysztofik wrote: > Visible glitches have been observed when running graphics applications on > Linux under Xen hypervisor. Those observations have been confirmed with > failures from kms_pwrite_crc Intel GPU test that verifies data coherency > of DRM frame buffer objects using hardware CRC checksums calculated by > display controllers, exposed to userspace via debugfs. Affected > processing paths have then been identified with new test variants that > mmap the objects using different methods and caching modes. BTW, are you going to update those tests in IGT? Andi