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festuc's avatar
festuc
Tin Contributor
Mar 24, 2025

NUMA Problems after In-Place Upgrade 2022 to 2025

We have updated several Hyper-V hosts with AMD Milan processors from Windows 2022 to Windows 2025 using the in-place update method. We are encountering an issue where, after starting about half of t...
Hyper-V
windows server
festuc's avatar
festuc
Tin Contributor
Mar 27, 2025

Yes, the VM start without problem before the host migration. Right now the are started but with the "Allow Spanning" checked.

PaddyA320's avatar
PaddyA320
Copper Contributor
Apr 10, 2025

To help you further on this issue, can you please share below data for the host and VMs?

  1. SMT configuration of the host
  2. SMT configuration of the all of the VMs
  3. Number of VPs and memory foreach VM

For #1, Taskmgr output(of CPU view) on from the host such as below is sufficient. 

For #2 and #3 please share VM configuration image from Hyper-V Manager for all the VMs

Thanks for providing above info towards further investigation on this issue.