OPNsense Forum

English Forums => 26.7 Series => Topic started by: tverweij on August 28, 2026, 11:29:37 AM

Title: Hyper-V guests may be producing panics on certain hosts
Post by: tverweij on August 28, 2026, 11:29:37 AM
In the Migration notes, known issues and limitations section was stated:

"Hyper-V guests may be producing panics on certain hosts with more than one virtual processor assigned.  Make sure to snapshot beforehand and stay on 26.1.x until the situation is clear."

In the release notes of newer versions, I see no link to this problem.

Is this problem resolved?
Title: Re: Hyper-V guests may be producing panics on certain hosts
Post by: Monviech (Cedrik) on August 28, 2026, 11:37:48 AM
Hello,

it's unlikely to be resolved, but the scope looks like it only affects AMD Zen2 architecture. So if you're on intel or AMD Zen3 or later it will not happen (most likely).

https://github.com/opnsense/src/issues/297
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=291577
Title: Re: Hyper-V guests may be producing panics on certain hosts
Post by: tverweij on August 28, 2026, 11:42:25 AM
Thank you!
I am running on Intel, so I will try the upgrade.