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Issue/Introduction

This article describes how to troubleshoot VM instance creation that fails with can't apply global Icelake-Server- x86_64-cpu.pconfig. It applies to the initial diagnosis and resolution of similar issues in ZStack Cloud.

Environment

  • Product: ZCF
  • Component: Cloud
  • Version: 3.x-5.5.30

Possible causes

Some CPU features on the compute node do not support virtualization, and the CPU mode global setting is inherited during creation.

Resolution

Check the following items:

  • The compute node uses an AMD EPYC 7663 CPU. Some features of this CPU model do not support virtualization.
  • The cluster's VM Instance CPU Model is set to host-model, which inherits the VM Instance CPU Mode global setting.

Set the cluster's VM Instance CPU Model:

  • Set VM Instance CPU Model for the cluster to none. The VM instance can then be created normally.
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VM instance creation fails with “can't apply global Icelake-Server- x86_64-cpu.pconfig” | 故障排查 · KB | ZStack Resource Center