On Tue, Sep 10, 2024 at 08:54:34AM GMT, sinan86polat@gmail.com wrote:
Is it normal behavior that instances can only be live migrated between hypervisors running the same kernel?
Like this I am not able to patch my hypervisors without downtime on the instances.
When I live migrate all instances from hypervisor A to hypervisor B, patch hypervisor A, I cannot migrate the instances back to hypervisor A since it is running a newer kernel.
The error is: guest CPU doesn't match specification: missing features: xsaves
Do you happen to be using AMD zenv1/zenv2 CPUs? Then it is probably due to the removal of the XSAVES flag in the linux kernel for those CPU types. https://lore.kernel.org/all/20230307174643.1240184-1-andrew.cooper3@citrix.c...
My source and target hypervisors have both the same CPU.
Running OpenStack Rocky.
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