Intel NUC i5 10. Gen GVT-g

[DpunktS]

I have a problem with GVT-g on the Intel NUC i5 10th Gen. Windows 10 runs with this setting about 7 days until the virtual machine crashes and a CPU core shows 100%. If I increase the resolution, the time with V5_4 is about 3-4 days. If the virtual machine crashes, Proxmox can no longer shut down normally, I then have to perform a hard reset.
Can someone help me please. I'm still a beginner with Proxmox.

I gave the GVT activated according to the instructions:

intel_iommu=on i915.enable_gvt=1 kvm.ignore_msrs=1

vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd
kvmgt
vfio-mdev


proxmox-ve: 6.4-1 (running kernel: 5.4.114-1-pve) pve-manager: 6.4-6 (running version: 6.4-6/be2fa32c) pve-kernel-5.4: 6.4-2 pve-kernel-helper: 6.4-2 pve-kernel-5.4.114-1-pve: 5.4.114-1 pve-kernel-5.4.106-1-pve: 5.4.106-1 pve-kernel-5.4.78-2-pve: 5.4.78-2 pve-kernel-5.4.73-1-pve: 5.4.73-1 ceph-fuse: 12.2.11+dfsg1-2.1+b1 corosync: 3.1.2-pve1 criu: 3.11-3 glusterfs-client: 5.5-3 ifupdown: 0.8.35+pve1 ksm-control-daemon: 1.3-1 libjs-extjs: 6.0.1-10 libknet1: 1.20-pve1 libproxmox-acme-perl: 1.1.0 libproxmox-backup-qemu0: 1.0.3-1 libpve-access-control: 6.4-1 libpve-apiclient-perl: 3.1-3 libpve-common-perl: 6.4-3 libpve-guest-common-perl: 3.1-5 libpve-http-server-perl: 3.2-2 libpve-storage-perl: 6.4-1 libqb0: 1.0.5-1 libspice-server1: 0.14.2-4~pve6+1 lvm2: 2.03.02-pve4 lxc-pve: 4.0.6-2 lxcfs: 4.0.6-pve1 novnc-pve: 1.1.0-1 proxmox-backup-client: 1.1.6-2 proxmox-mini-journalreader: 1.1-1 proxmox-widget-toolkit: 2.5-5 pve-cluster: 6.4-1 pve-container: 3.3-5 pve-docs: 6.4-2 pve-edk2-firmware: 2.20200531-1 pve-firewall: 4.1-3 pve-firmware: 3.2-3 pve-ha-manager: 3.1-1 pve-i18n: 2.3-1 pve-qemu-kvm: 5.2.0-6 pve-xtermjs: 4.7.0-3 qemu-server: 6.4-2 smartmontools: 7.2-pve2 spiceterm: 3.1-1 vncterm: 1.6-2 zfsutils-linux: 2.0.4-pve1

 

[Stefan_R]

Are there any logs from the time of the crash? Both on the host ('journalctl -e' and 'dmesg') and potentially from the guest (Event Viewer).

Can you test if this also occurs with a Linux Guest? (it should still work with Windows too, but may help identify the issue)

 

[DpunktS]

i can't test this problem with linux because i don't have a linux machine. I saved the log of a crash. the next time the machine crashes I'll post the log here.

 

[Stefan_R]

i can't test this problem with linux because i don't have a linux machine.

There's always the option of making one

But truthfully, I doubt it'd make a difference. The log you posted would indicate a kernel or hardware error (potentially related to this GitHub issue?). You could try updating to our 5.11 kernel by running apt install pve-kernel-5.11, then reboot the host. Check you got it right with uname -a - it should show '5.11.21-1-pve' (at the time of writing).

 

[DpunktS]

ok i will test it. I'll let you know if it works.

 

[DpunktS]

I have now updated the kernel. let's see how long the Windows 10 machine runs.
root@intelnuc:~# uname -a Linux intelnuc 5.11.17-1-pve #1 SMP PVE 5.11.17-1~bpo10 (Mi, 12. Mai 2021 12:45:37 +0200) x86_64 GNU/Linux

 

[DpunktS]

After about 5 days, the Windows VM crashed again and cannot be closed. Despite the kernel updates.

 

[DpunktS]

I am also surprised that when I restart Proxmox I have used a working memory of 18GB. The memory also grows up to 26GB until the VM crashes. I installed 31gb Ram and I also deactivated balloon. My 3 VMs only got 16gb assigned.

 

[leesteken]

If you did not set a maximum, ZFS can use upto 50% of your systems memory. I believe VMs with device passthrough cannot give memory back to the host (ballooning), which might also be the case with GVT-g.

 

[DpunktS]

ok there the question is clarified with the memory. I deactivated ballooning anyway. It would be nice if the VM would still run now.

 

[luciferlu]

I have the same question.

 

[DpunktS]

I have now kvm.ignore_msrs=1deactivated but proxmox crashes completely after 2 days. I was able to do this in such a way that this always happens when the memory reaches the 26 GB limit.

 

[DpunktS]

There is no one who can help me to get an intel nuc 10 i5 (Intel 10210U) with gvt-g to work. Proxmox 7.0 with cores 5.11 did not solve the problem either.