CentOS - Dec 2022 - CentOS7 latest kernel still does not run KVM guests

The two latest kernels for CentOS7 are complete fails for running KVM 
and QEMU guest machines.

Version 3.10.0-1160.76.1 works correctly.  Both 3.10.0-1160.80.1 and 
3.10.0-1160.81.1 will hang within seconds of launching any virtual 
machine.  It is a HARD hang.  I have to pull the power cord from the 
computer in order to regain control.

Since 81.1 came out within the last few days, I assumed it would contain 
a fix for this problem.  It does not.

Does anyone know when a kernel will be released that fixed this problem?

-- 
==============Bill Gee

On 12/20/22 06:50, Bill Gee wrote:
> The two latest kernels for CentOS7 are complete fails for running KVM 
> and QEMU guest machines.
> 
> Version 3.10.0-1160.76.1 works correctly.? Both 3.10.0-1160.80.1 and 
> 3.10.0-1160.81.1 will hang within seconds of launching any virtual 
> machine.? It is a HARD hang.? I have to pull the power cord from the 
> computer in order to regain control.
> 
> Since 81.1 came out within the last few days, I assumed it would contain 
> a fix for this problem.? It does not.
> 
> Does anyone know when a kernel will be released that fixed this problem?
> 
This is not true for all KVM guests.  This kernel is actually installed 
and test booted before release on a cold iron, KVM VM, Virtual Box VM, 
and ESXi VM.

It also passes our t_functional test suite:



All C7 updates run through all these tests for all new rpms.

So this problem has some other specific cause.  Is this on a E5507 
processor?

What OS is the KVM host running.  I assume this is x86_64 arch?