SOLVED: Endless booting,crashing and looping on KVM, on a AMD

[xupetas]

Hello All!

I've finally got around to upgrade to the latest version 19.1.3, on my homelab servers, and on a AMD Phenom i am getting an endless panic/reboot cycle.

The OPNsense runs on a Linux/KVM system, and the interaction is trowing an KVM: Guest triggered AMD Erratum 383.
I've done all i knew, on the kvm side (cpu passsthrough) and nothing. Sometimes it boots. Sometimes it reboots endlessy.

What am i missing? To the best of my knowlege this was not happening on 19.1.

EDIT: Tested upgrading it to the Dev version and the issue is not felt here. The only thing i can think of is that freebsd is having a tantrum.
In 19.1 the version is FreeBSD 11.2-RELEASE-p9-HBSD, on 19.7 the version is FreeBSD 11.2-RELEASE-p8-HBSD.
Form p9 to p8. Why the downgrade?

EDIT2: Nope... just crashed again with the same error  KVM: Guest triggered AMD Erratum 383. It appears that is felt also on 19.7.

Can you plesae help me?

Thanks!

[lattera]

What happens when you set vm.pti=0?

[lattera]

Sorry, I meant to write: vm.pmap.pti=0

[xupetas]

It appears that that did the trick, both on dev and production ranges.

Thanks very much for your help!