I recently bought this board as I wanted to start doing pci passthrough emulation.
I noticed that after I had installed it and booted up, with IOMMU enabled the network would work fine for a while then I would get an AMD-Vi IO page fault and the driver would crash. IF I turn off IOMMU there is no problem with using ethernet, The onboard ethernet chip is a RTL8111F/8168F. For now I've turned off the network adapter in the bios and am using an add on card. Then I noticed that I could not use the onboard audio with oss (4.2.2007) with IOMMU enabled. Alsa works ok, but I prefer to use oss. As with the ethernet card if I turn off IOMMU in the bios the onboard audio is recognized and works fine. Any clues or help would be appreciated Thanks, Don
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