Messages in this thread | | | Date | Fri, 9 Nov 2018 08:49:55 +0100 | From | Christoph Hellwig <> | Subject | Re: [PATCH 06/10] swiotlb: use swiotlb_map_page in swiotlb_map_sg_attrs |
| |
On Tue, Nov 06, 2018 at 05:27:14PM -0800, John Stultz wrote: > But at that point if I just re-apply "swiotlb: use swiotlb_map_page in > swiotlb_map_sg_attrs", I reproduce the hangs. > > Any suggestions for how to further debug what might be going wrong > would be appreciated!
Very odd. In the end map_sg and map_page are defined to do the same things to start with. The only real issue we had in this area was:
"[PATCH v2] of/device: Really only set bus DMA mask when appropriate"
so with current mainline + that you still see a problem, and if you rever the commit we are replying to it still goes away?
| |