On Thu, 2018-05-10 at 17:31 +0200, Mike Galbraith wrote: > On Thu, 2018-05-10 at 10:31 -0400, Jerome Glisse wrote: > > > > Could you bisect ? I would love to point finger upstream to the DMA > > folk who made changes to that API without testing with GPU. > > Rummaging a bit, it might be... >
(unsend, whack duplicate line, munge, send;) > nouveau_bo_new() > ... > ttm_dma_pool_alloc_new_pages() > dma_alloc_attrs() > ops->alloc() == x86_swiotlb_alloc_coherent() > x86_swiotlb_alloc_coherent() flags |= __GFP_NOWARN; > swiotlb_alloc_coherent(..flags) > swiotlb_alloc_coherent(..flags) attrs = (flags & __GFP_NOWARN) ? > DMA_ATTR_NO_WARN : 0; > swiotlb_alloc_buffer(..attrs) * swiotlb_tbl_map_single(..0) passed 0 vs attrs, gripeage follows Or something like that.
