Comment # 4 on bug 58667 from Thomas Rohloff

!Is this a regression?  Does it happen with older versions of mesa or kernel?!
Not that I know about.
"May also be related to bug 58354."
Do you have the path noted there ("drm/radeon: use DMA engine for VM page table
updates on cayman/TN") ? I would loce to try to revert this patch and test it,
but I'm unable to google it.