kernel panic 5.15.35-1-pve,kvm64 migrate from CPU Intel gold+silver to Intel xeon e5 fails

[Dadsun]

Hello,
with kernel 5.15.35 kvm64 migration fails with particular host cpus:
Any online migration performed from:
- an Intel Gold (6130) or
- Intel Silver (4110) CPU
to any:
- Intel Xeon E5 (1650,2660,2643) fails with Kernel panic

stopping the machine and make a cold move is always working. But I don't like shutting down machines for migration.

CPU Type is KVM64, i440fx, kvm latest
Kernel: 5.15.35-1-pve
pve-manager: 7.2-3 (running version: 7.2-3/c743d6c1)

References: https://forum.proxmox.com/threads/live-migration-auf-7-2-4-cpu-100-freeze.109815/ and https://bugzilla.proxmox.com/show_bug.cgi?id=4073 and https://lore.kernel.org/lkml/CAJ6HWG66HZ7raAa+YK0UOGLF+4O3JnzbZ+a-0j8GNixOhLk9dA@mail.gmail.com/T/

Suggestions appreciated

 

[Neobin]

You already found the relevant references and should have read, that it is known and already actively get troubleshooted/worked on by the developers.
So what are you hoping for with this new thread?

Edit: I mean, it's better to hold all relevant informations/reports together and not to spread them, right?!

 

[Dadsun]

This part:
"...worked on by the developers...."
wasn't clear for me.
Thank you

 

[Neobin]

Ah, okay. For explanation: In the Bugzilla ticket you linked, Fabian Grünbichler and Stoiko Ivanov are two of the Proxmox developers.

 

[Dadsun]

Ah, always nice to learn new things.

should I add my part there, as the status says: more infos needed ?