From 71a748f6107a2399f9100480cc79f640c064d756 Mon Sep 17 00:00:00 2001 From: Sulochan Acharya Date: Fri, 4 Oct 2024 19:18:39 +0545 Subject: [PATCH] Update docs for pci device error tip (#461) --- docs/openstack-pci-passthrough.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/docs/openstack-pci-passthrough.md b/docs/openstack-pci-passthrough.md index 7c4acfdb..8c3d474c 100644 --- a/docs/openstack-pci-passthrough.md +++ b/docs/openstack-pci-passthrough.md @@ -189,6 +189,10 @@ Assuming this is running an NVIDIA GPU, you can run install the relevant drivers - **Device Not Found:** Ensure the PCI device is available and not used by the host. - **Configuration Errors:** Check `nova-compute` logs. - **IOMMU Not Enabled:** Confirm that IOMMU is enabled in the BIOS/UEFI and in the GRUB configuration. +- **Scheduler Error:** Example errors like `Dropped device(s) due to mismatched PCI attribute(s)` or `allocation_candidate: doesn't have the required PCI devices` This and scheduler removing all compute nodes during pci filter is a sign that your **device_type** attribute on nova.conf does not correctly match the PCI device installed on the sytem. + +!!! tip + The device_type attribute must match one of type-PCI, type-PF or type-VF. If you have a SR-IOV capable device, you must set your device_type to type-PF even if you do not use the SR-IOV functionality. ## Conclusion