https://bugs.freedesktop.org/show_bug.cgi?id=58354
--- Comment #22 from Alex Deucher agd5f@yahoo.com --- Created attachment 74014 --> https://bugs.freedesktop.org/attachment.cgi?id=74014&action=edit patch 1/2
Does this set of patches fix the issue? I think we are running out of ring space for large VM page table updates since the DMA ring is smaller than the CP ring.