Hi

 

I have 1st Windows vm working with 1st GTX 750ti GPU and now I've tried to add a second GPU to a openelec vm but get start up errors.

I didn't know skylake CPUs was a bad choice for passthrough solutions when I got it...

 

I read in some thread that someone moved the other device to another group by changing some parameter id thingie (lost track of the thread) but I don't know if that would help me too? And is it possible to move any of the devices in group 5? Like the NIC?

I have tried ACS override and that just movies around the groups but the second GPU still have other devices in the same group.

I would really appreciate some help.

 

Here is the error:

internal error: early end of file from monitor: possible problem:

2016-09-21T17:54:48.533541Z qemu-system-x86_64: -device vfio-pci,host=02:00.0,bus=pcie.0,multifunction=on,x-vga=on: vfio: error, group 5 is not viable, please ensure all devices within the iommu_group are bound to their vfio bus driver.

2016-09-21T17:54:48.533559Z qemu-system-x86_64: -device vfio-pci,host=02:00.0,bus=pcie.0,multifunction=on,x-vga=on: vfio: failed to get group 5

2016-09-21T17:54:48.533566Z qemu-system-x86_64: -device vfio-pci,host=02:00.0,bus=pcie.0,multifunction=on,x-vga=on: Device initialization failed

2016-09-21T17:54:48.533573Z qemu-system-x86_64: -device vfio-pci,host=02:00.0,bus=pcie.0,multifunction=on,x-vga=on: Device 'vfio-pci' could not be initialized

 

 

Here is my PCI device list:

00:00.0 Host bridge: Intel Corporation Sky Lake Host Bridge/DRAM Registers (rev 07)

00:01.0 PCI bridge: Intel Corporation Sky Lake PCIe Controller (x16) (rev 07)

00:14.0 USB controller: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller (rev 31)

00:16.0 Communication controller: Intel Corporation Sunrise Point-H CSME HECI #1 (rev 31)

00:17.0 SATA controller: Intel Corporation Device a102 (rev 31)

00:1c.0 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #5 (rev f1)

00:1c.7 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #8 (rev f1)

00:1d.0 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #9 (rev f1)

00:1f.0 ISA bridge: Intel Corporation Sunrise Point-H LPC Controller (rev 31)

00:1f.2 Memory controller: Intel Corporation Sunrise Point-H PMC (rev 31)

00:1f.3 Audio device: Intel Corporation Sunrise Point-H HD Audio (rev 31)

00:1f.4 SMBus: Intel Corporation Sunrise Point-H SMBus (rev 31)

01:00.0 VGA compatible controller: NVIDIA Corporation GM107 [GeForce GTX 750 Ti] (rev a2)

01:00.1 Audio device: NVIDIA Corporation Device 0fbc (rev a1)

02:00.0 VGA compatible controller: NVIDIA Corporation Device 128b (rev a1)

02:00.1 Audio device: NVIDIA Corporation GK208 HDMI/DP Audio Controller (rev a1)

03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)

 

 

IOMMU GROUPS:

/sys/kernel/iommu_groups/0/devices/0000:00:00.0

/sys/kernel/iommu_groups/1/devices/0000:00:01.0

/sys/kernel/iommu_groups/1/devices/0000:01:00.0

/sys/kernel/iommu_groups/1/devices/0000:01:00.1

/sys/kernel/iommu_groups/2/devices/0000:00:14.0

/sys/kernel/iommu_groups/3/devices/0000:00:16.0

/sys/kernel/iommu_groups/4/devices/0000:00:17.0

/sys/kernel/iommu_groups/5/devices/0000:00:1c.0

/sys/kernel/iommu_groups/5/devices/0000:00:1c.7

/sys/kernel/iommu_groups/5/devices/0000:02:00.0

/sys/kernel/iommu_groups/5/devices/0000:02:00.1

/sys/kernel/iommu_groups/5/devices/0000:03:00.0

/sys/kernel/iommu_groups/6/devices/0000:00:1d.0

/sys/kernel/iommu_groups/7/devices/0000:00:1f.0

/sys/kernel/iommu_groups/7/devices/0000:00:1f.2

/sys/kernel/iommu_groups/7/devices/0000:00:1f.3

/sys/kernel/iommu_groups/7/devices/0000:00:1f.4

 

 

*Edit*

I forgot to add that I have tried moving the second GPU to another slot on the motherboard but it's still in group with the NIC and other devices.

 

 

Bump. I have searched the forum but no one have the exact same problem so I don't know how to solve it, if it even is possible.

I'm not lazy, just very unexperienced with kvm/passthrought/VMs.

Which unraid version are you on? I had issues until the 6.2 betas and stable which now work great.

I run 6.1.9. But is this really a issue with unraid in my case? I guessed that it is my motherboard and skylake that isn't suited for this.

I just want to know if there is a work around?

 

I might try upgrading to 6.2 later if nothing comes up, thanks.