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07-11-2013 09:50 AM
07-11-2013 09:50 AM
DL320 G6 and VT-d - does anybody have this working?
I'm trying to get VT-d working with Linux and so far have been unsuccessful. I've enabled it in the BIOS and the machine boots fine until I pass the intel_iommu=on parameter to the kernel via grub. The machine will never fully boot and the console is filled with this:
DRHD: handling fault status reg 102
DMAR:[DMA Read] Request device [00:1e:0] fault addr e763e000
DMAR: [fault reason 06] PTE read access is not set
with the reg incrementing 2, 102, 202 etc. through 702 and then it starts over. I then have to reset the box and disable VT-d in the BIOS to get it to boot again. Changing intel_iommu to soft or igfx_off will allow the machine to boot but dmesg shows this for all the devices DMAR finds:
DMAR: Device scope device [0000:00:0a.00] not found
I've tried three different Linux distros, all with the same results, as well as many of the intel_iommu and iommu kernel parameters. Next step is to pull the SCSI card, but since that's what I want to pass through to the VM, that kinda defeats the purpose.
Has anybody figured out how to get this to work on this platform with Linux?
thanks--
--jim
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07-12-2013 12:13 AM
07-12-2013 12:13 AM
Re: DL320 G6 and VT-d - does anybody have this working?
Hi,
What is the linux flavor you are trying and what is the bios version on the server?
Some tips:
Have you tried installing Windows OS with VT-d enabled on this server?
Can you try updating the BIOS on this server and then install Linux with VT-d?
Also try with minimum DIMM modules with Add-On cards removed if any.
Thank You!
I am a HP employee.
I work for HPE.
[Any personal opinions expressed are mine, and not official statements on behalf of Hewlett Packard Enterprise]
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07-12-2013 09:55 AM
07-12-2013 09:55 AM
Re: DL320 G6 and VT-d - does anybody have this working?
Sorry, I should have mentioned that the BIOS and firmware are all updated to the latest available. The BIOS is 2012.12.02. The three Linux flavors I tried were Proxmox (debian-based), Ubuntu 12.04, and CentOS 6.4. No, I haven't tried Windows, nor do I have any real intention to. This server's going to run Linux and I was hoping to be able to passthrough a PCIe SCSI card to a guest KVM OS.
I get the same behavior with only two RAM sticks installed and the SCSI card removed.