[SOLVED] VMs freeze after migration

[alexx]

Hi,

I' running an 8 node cluster with 4 dedicated ceph nodes and 4 nodes for VM hosting. All nodes running the latest proxmox version. Only minimal load on all nodes.

I call the VM hosting nodes 3 8 6 and 11

I can do live migration from node 6 to 11 and 11 to 6.
Migration from 3 to 8 and 8 to 3 is also possible.
Migration from 3 or 8 to 11 or 6 is also working.
When I try migration from 11 or 6 to 3 or 8 the VMs instantly freezes on the target host.

Configuration and network is the same on all nodes. The only difference
is that 3 and 8 use older CPUs

node 8 Intel(R) Xeon(R) CPU E5-2650 v2 @ 2.60GHz
node 3 Intel(R) Xeon(R) CPU E5-2630L 0 @ 2.00GHz

node 6 Intel(R) Xeon(R) Gold 5220R CPU @ 2.20GHz
node 11 AMD Ryzen 9 5950X 16-Core Processor

Is this possibly a hardware issue?
Any help or ideas would be appreciated

 

[Neobin]

Sounds like:
https://bugzilla.proxmox.com/show_bug.cgi?id=4073

 

[alexx]

Thx. Seems related to Kernel issues, booting the 5.13 Kernel solved the issue at least for now.