On 2016-06-22 09:50, Nicolai Hähnle wrote: > Hi Mads, > > setting R600_DEBUG=nodma in the X server should work around your > problem for now. > > Marek, perhaps an out-of-bounds check for tiled texture memory access > similar to the linear access check is necessary? I wonder if you've > seen something about that in the docs. > > I've annotated the sDMA IB dump. It's a linear-to-display-tiled copy on > Carrizo. I tried to reproduce with the attached patch, but failed to do > so even with amdgpu.vm_debug=1. With the patch, I get DMA copies that > are identical to the one that causes the VM fault except for a > different bank_height and macro_tile_aspect, so the issue is likely > related to those. > > Nicolai > Thank you for this! Sorry I didn't check X ifself for the environment flag when I debugged, guess that could've saved us some back-and-forth mailing.. Let me know if there's anything more I could/should do! - Mads
