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Thread: GA-890FXA-UD5 IOMMU BIOS Switch?




  1. #141
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    Default Re: GA-890FXA-UD5 IOMMU BIOS Switch?

    Reflashing now, will report back.

  2. #142
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    Default Re: GA-890FXA-UD5 IOMMU BIOS Switch?

    Sorry for taking a while... World Cup games take first priority. :P
    I enabled IOMMU support, and now I don't have X working. The machine is locked up, no keyboard events even. But I can ssh into the box. So I ran `dmesg` and it looks like it's all there. But I do get some "IO_PAGE_FAULT".

    Code:
    [   13.589078] AMD-Vi: Event logged [IO_PAGE_FAULT device=07:00.0 domain=0x001d address=0x0000000145969000 flags=0x0010]
    [   13.589084] AMD-Vi: Event logged [IO_PAGE_FAULT device=07:00.0 domain=0x001d address=0x0000000145969040 flags=0x0010]
    A lookup of that device (07:00.0) shows that it's my main video card that I use.

    Code:
    07:00.0 VGA compatible controller: nVidia Corporation GT215 [GeForce GT 240] (rev a2)
    Very odd. This is 2.6.34 kernel. I have iommu=1 set for my kernel arguments. I've not done any google searches yet into this problem. Anyone have any ideas/hints?

    Cheers.

  3. #143
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    Default Re: GA-890FXA-UD5 IOMMU BIOS Switch?

    kuzew,
    What you're seeing may be related to this nouveau bug: https://bugzilla.redhat.com/show_bug.cgi?id=561267
    and this fix (in v2.6.35-rc3): http://git.kernel.org/?p=linux/kerne...4a5dc99f0832d7

  4. #144
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    Default Re: GA-890FXA-UD5 IOMMU BIOS Switch?

    Quote Originally Posted by michich View Post
    kuzew,
    What you're seeing may be related to this nouveau bug: https://bugzilla.redhat.com/show_bug.cgi?id=561267
    and this fix (in v2.6.35-rc3): http://git.kernel.org/?p=linux/kerne...4a5dc99f0832d7
    Hmm, I'm not having DMAR errors, but people are talking about other IOMMU faults/errors so I will compile the latest mainline kernel, 2.6.35-rc3. Will report back with any changes. I'll also look at the changelog back till 2.6.34. I wasn't too keen on upgrading to 2.6.35.x because of major regressions with performance. Apparently that has been resolved. Thanks for the information, michich.
    Last edited by kuzew; 07-05-2010 at 12:16 PM.

  5. #145
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    Default Re: GA-890FXA-UD5 IOMMU BIOS Switch?

    OK, the 2.6.35-rc3 kernel has sort of fixed my issue. I still get the "IO_PAGE_FAULT" but that's a for a PCI device I'm not using (the HDMI Audio off of my NVIDIA card). I can passthrough a Ethernet device to the VM in kvm, but the MAC address is ff:ff:ff:ff:ff:ff and I can't get a IP address. But it does pop up under `lspci` as the correct device. I will try Xen tomorrow, that seems more advance with IOMMU and PCI/USB passthrough.

    But the IOMMU support in the Gigabyte BIOS seems to be working! When I passthough the Ethernet device and another NVIDIA card to the VM, I will be happy. Just seems to be at this point a software issue. Maybe, like I said before, Xen will work. Thanks again michich for the suggestion, it seems to be almost there!

    Edit: Also it seems KDE 4.3 SC's compositing slows the machine down quite a lot, to the point that it disables itself on this new kernel. I don't know if it's the NVIDIA drivers, something in the kernel or the IOMMU enabled (it shouldn't be). I've switched back to the 2.6.34 kernel with IOMMU disabled in the BIOS till something becomes stable (the kernel or the BIOS, which ever comes 1st).
    Last edited by kuzew; 07-05-2010 at 12:15 PM. Reason: See Edit.

  6. #146
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    Default Re: GA-890FXA-UD5 IOMMU BIOS Switch?

    Looks like someone has an issue with IOMMU/Linux on one of the ASUS boards.

    Customer Reviews Of ASUS M4A89TD PRO/USB3 AM3 AMD 890FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard

    Can anyone confirm?

  7. #147
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-890FXA-UD5 IOMMU BIOS Switch?

    Not sure if this has been posted in the thread or not yet, but here is 890FXA-UD5 (Rev. 2) F4d BIOS with IOMMU support added
    89FXAU52.f4d


    Everyone please let me know over the next week or so if any other boards need this added and I will pass it along

  8. #148
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    Default Re: GA-890FXA-UD5 IOMMU BIOS Switch?

    Quote Originally Posted by Lsdmeasap View Post
    Not sure if this has been posted in the thread or not yet, but here is 890FXA-UD5 (Rev. 2) F4d BIOS with IOMMU support added
    89FXAU52.f4d


    Everyone please let me know over the next week or so if any other boards need this added and I will pass it along
    Anything for the GA-890FXA-UD7 available or forthcoming? That looks like a top end board and probably will be my preference.

  9. #149
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    Default Re: GA-890FXA-UD5 IOMMU BIOS Switch?

    Probably! I just need to gather up a list for them to let them know what users with what boards are looking to get this added in, then I am sure after a bit they will get it added to those boards.

    So I am making a list and will send it in next week or so, I'll add that one to the list. I agree, I think it should have it as well since the Ud5 does. They might as well just add it to all of them, not sure why they don't plan to.

  10. #150
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    Default Re: GA-890FXA-UD5 IOMMU BIOS Switch?

    Hi,

    Can somebody update me on the state of play?
    I'm looking to use KVM on Ubuntu 10.04 x64.
    Beta BIOS builds and bleeding edge kernels are scaring me off buying at the moment.
    I'd prefer the Gigabyte board as I already have one of those (785g board)
    Do we have a drop in solution yet or is it still hand rolling your kernel + patches?

    Thanks,

    J1M.

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