KVM SR-IOV devices with high latency and messages like "Spurious APIC interrupt (vector 0xFF) on CPU#0, should never happen"
Issue
- Virtual Machine dmesg shows many errors such as below:
Spurious APIC interrupt (vector 0xFF) on CPU#0, should never happen.
- Virtual Machine takes a very long time to initialise SR-IOV devices on reboot, or hangs.
- SR-IOV Network Interfaces have high latency after a Guest reboot
Environment
- Red Hat Enterprise Linux 9.2 KVM Host
- nVidia GPU Passthrough to KVM Guest
- SR-IOV NIC passthrough to KVM Guest (eg: Intel, Mellanox, Broadcom, etc)
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