On 05/14/2017 01:31 AM, Adam Carter wrote:
Tried kernels 4.10.13 and 4.11, with
CONFIG_GART_IOMMU=y
CONFIG_IOMMU_HELPER=y
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y
CONFIG_IOMMU_IOVA=y
CONFIG_AMD_IOMMU=y
CONFIG_AMD_IOMMU_V2=m
Chipset is 990FX, and AFAICT the V2 is for the APU (bdver3 and 4 vintage).
When I enable the IOMMU in the BIOS I get stack traces. Is anyone using
AMD_IOMMU successfully? If so, any tips?
Is this a gentoo kernel or one from kernel.org?
What are the exact errors you are getting? random? can you post?
On 05/14/2017 11:06 AM, Alan Grimes wrote:
Adam Carter wrote:
Tried kernels 4.10.13 and 4.11, with
CONFIG_GART_IOMMU=y
CONFIG_IOMMU_HELPER=y
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y
CONFIG_IOMMU_IOVA=y
CONFIG_AMD_IOMMU=y
CONFIG_AMD_IOMMU_V2=m
Chipset is 990FX, and AFAICT the V2 is for the APU (bdver3 and 4 vintage).
When I enable the IOMMU in the BIOS I get stack traces. Is anyone
using AMD_IOMMU successfully? If so, any tips?
On a Phenom II? Yeah, I just retired mine a month ago. On that
system, the IOMMU hardware was kinda a legacy orphan thingy, I had to go
through all kinds of gyrations on the kernel command line in order to
initialize it correctly. I think I had it off in the bios, then enabled
it using a bunch of kernel commands.
990FX would probably be an AMD FX CPU such as the 8350, it usually works
fine and is enabled by default on most distros.
