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Hello list, |
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I was looking through dmesg this morning and found 1231 instances (!) of |
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this error: |
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|
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DMAR: DMAR:[DMA Read] Request device [01:00.0] fault addr f400156000 DMAR: |
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[fault reason 06] PTE Read access is not set |
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This is an Intel i7 box with an NVMe SSD and an AMD/ATI Amethyst XT Radeon |
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R9 M295X display card. The kernel is gentoo-sources-4.4.39. I've tried |
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setting intel_iommu=on or =pt as kernel parameter to no effect. I don't want |
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to set it =off because I've read that it slows the machine dramatically. |
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Googling has shown nothing, other than playing with that kernel parameter. |
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Does anyone here know what the problem is? |
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-- |
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Regards |
| 19 |
Peter |
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