Opt-in Linux 7.0 Kernel for Proxmox VE 9 available on test and no-subscription

[Weltherrscher]

Ok, I narrowed my problems down to either the 16.4 nvidia enterprise host driver and / or the kernel option "iommu=pt".
After 6.17 showed the same failures I tracked my last actions on the server which were the installation of the nvidia driver and the removal of the kernel commandline option iommu.
Since I uninstalled the driver and added the option back to grubs kernel command line, the whole system is rockstable under 7.0.2-4 without any suspicious syslog messages.

Next I investigate whether it was the driver or the option or both.
Sorry for messing the thread...

//Edith:
It was definitely the kernel option.
Installed the driver again with "iommu=pt" and all is fine.

 

[kvanbiesen]

as response to myself with the higher power consumtion. Fixed it by installing the latest revision and a couple of reboots. No idea what cause it, but one core stayed stuck on Max Freq. Now its back to normal. (7.0.2-4-pve)

 

[fiona]

@Weltherrscher I found an upstream patch that should resolve the issue and pinged the maintainers about it. It's a bit strange that nobody else is running into this issue, but it might depend on the specific workload pattern/guest kernel (the patch was made after the issue was found via fuzzing).

 

[Weltherrscher]

Thank you for your reply! =)

Anyway, i keep hitting DMAR errors for the X540 VFs even with iommu=pt in Kernel 7.0.2-4:

May 19 22:44:52 px1 QEMU[3776]: kvm: vfio_container_dma_map(0x595d88370dd0, 0xe10bb000, 0x1000, 0x7834682db000) = -28 (No space left on device)
May 19 22:44:52 px1 kernel: DMAR: DRHD: handling fault status reg 2
May 19 22:44:52 px1 kernel: DMAR: [DMA Read NO_PASID] Request device [04:10.0] fault addr 0xe2162000 [fault reason 0x06] PTE Read access is not set
May 19 22:44:52 px1 kernel: DMAR: DRHD: handling fault status reg 102
May 19 22:44:52 px1 kernel: DMAR: [DMA Read NO_PASID] Request device [04:10.0] fault addr 0xe20bb000 [fault reason 0x06] PTE Read access is not set
May 19 22:44:52 px1 QEMU[3776]: kvm: vfio_container_dma_map(0x595d88370dd0, 0xe10ba000, 0x1000, 0x7834682da000) = -28 (No space left on device)

Right now, my iSCSI network broke again, having to restart the NAS VM.
I now try to use the VM without vIOMMU inside (vIOMMU=none, was before intel(amd compatible))...