radeon_test_moves (radeon_ttm_backend_bind called through callback function) - radeon_ttm.c:radeon_ttm_backend_bind calls radeon_gart_bind - radeon_gart.c:radeon_gart_bind calls pci_map_page - pci_map_page is alpha_pci_map_page, which calls... - alpha_pci_map_page calls pci_iommu.c:pci_map_single_1 - pci_map_single_1 calls iommu_arena_alloc - iommu_arena_alloc calls iommu_arena_find_pages - iommu_arena_find_pages returns non-0 - iommu_arena_alloc returns non-0 - pci_map_single_1 returns 0 after printing "could not allocate dma page tables" error - alpha_pci_map_page returns 0 from pci_map_single_1 - radeon_gart_bind returns non-0, error path prints "*ERROR* failed to bind 128 pages at 0x0FF02000"
Is this the cause of the bug we're seeing in the report [1]? Anyone know what's going wrong here? Thanks! Matt Turner [1] https://bugs.freedesktop.org/show_bug.cgi?id=26403