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