Sep 30 21:51:07 Iris kernel: AMD-Vi: Event logged [INVALID_DEVICE_REQUEST device=00:14.0 address=0x000000fdf9103300 flags=0x0600] with IOMMU enabled i get a few 100 of these messages per second started to happen with kernel 4.2.1 Reproducible: Always
*** Bug 561934 has been marked as a duplicate of this bug. ***
Can you test 4.2.6 with iommu = soft as a kernel parameter, please?
I will try to get to that tonight
seems to have gone away with 4.2.6, though i didn't sit and watch it for long before throwing on 4.3.0 vanilla, haven't seen it there either
DJ Dunn claim the error as gone away with 4.2.6