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On Saturday 25 March 2006 17:58, Boyd Stephen Smith Jr. wrote: |
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> |
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> I had something like this happening on my 4GB system. With IOMMU off, I'd |
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> only have access to like 2G of memory. With IOMMU on, I had various |
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> results, ranging from kernel panic before initrd is loaded to missing |
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> memory (small, like maybe the size of my PCI IO window?) to a completely |
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> working system with devices properly mapped to memory addresses beyond my |
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> physical RAM. These various behaviors were controlled, oddly enough, by |
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> my BIOS settings. |
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> |
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> I'm running a Tyan Dual-Opteron Dual-PCIe board... If you've got a similar |
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> board, I can share my BIOS and kernel settings and maybe you can resolve |
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> your IOMMU issues. |
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Just out of curiousity, is it the Tyan S2895? |
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Bill Tetrault |
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Madison, WI |
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gentoo-amd64@g.o mailing list |
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