Hi, On 12/5/19 4:53 AM, Jerry Snitselaar wrote:
Attaching console output (can't get to a point to actually log in) and config that is used to build that kernel.
[...] [ 21.969477] pci 0000:00:00.0: Adding to iommu group 0 [ 21.971390] pci 0000:00:01.0: Adding to iommu group 1 [ 21.973173] pci 0000:00:01.1: Adding to iommu group 2 [ 21.974930] pci 0000:00:02.0: Adding to iommu group 3 [ 21.976672] pci 0000:00:02.1: Adding to iommu group 4 [ 21.978446] pci 0000:00:02.2: Adding to iommu group 5 [ 21.980224] pci 0000:00:02.3: Adding to iommu group 6 [ 21.982096] pci 0000:00:03.0: Adding to iommu group 7 [ 21.983868] pci 0000:00:03.1: Adding to iommu group 8 [ 21.985644] pci 0000:00:03.2: Adding to iommu group 9 [ 21.987484] pci 0000:00:03.3: Adding to iommu group 10 [ 21.989830] pci 0000:00:04.0: Adding to iommu group 11 [ 21.991738] pci 0000:00:04.1: Adding to iommu group 11 [ 21.993557] pci 0000:00:04.2: Adding to iommu group 11 [ 21.995360] pci 0000:00:04.3: Adding to iommu group 11 [ 21.997145] pci 0000:00:04.4: Adding to iommu group 11 [ 21.998915] pci 0000:00:04.5: Adding to iommu group 11 [ 22.000694] pci 0000:00:04.6: Adding to iommu group 11 [ 22.002569] pci 0000:00:04.7: Adding to iommu group 11 [ 22.004556] pci 0000:00:05.0: Adding to iommu group 12 [ 22.006388] pci 0000:00:05.2: Adding to iommu group 12 [ 22.008186] pci 0000:00:05.4: Adding to iommu group 12 [ 22.009968] pci 0000:00:11.0: Adding to iommu group 13 [ 22.011815] pci 0000:00:1a.0: Adding to iommu group 14 [ 22.013605] pci 0000:00:1c.0: Adding to iommu group 15 [ 22.015408] pci 0000:00:1c.7: Adding to iommu group 16 [ 22.017216] pci 0000:00:1d.0: Adding to iommu group 17 [ 22.018991] pci 0000:00:1e.0: Adding to iommu group 18 [ 22.021826] pci 0000:00:1e.0: Using iommu dma mapping [ 22.023783] pci 0000:00:1f.0: Adding to iommu group 19 [ 22.025667] pci 0000:00:1f.2: Adding to iommu group 19 [ 22.346001] pci 0000:03:00.0: Adding to iommu group 20 [ 22.348727] pci 0000:03:00.0: Using iommu dma mapping [ 22.350644] pci 0000:03:00.1: Adding to iommu group 20 [ 22.352833] pci 0000:03:00.2: Adding to iommu group 20 [...] It seems that iommu pci bus probe didn't enumerate device [01:00.2] and [02:00.0], the corresponding context entries were not setup. Hence dma fault generated when devices access the memory. Do these two devices show in "lspci" output? How do these devices get enumerated by the system? Best regards, baolu _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
