> On 14 Sep 2022, at 15:24, Luciano Mannucci <luciano@???> wrote:
>
> hello all!
>
> I have a virtual machine running under kvm who started hanging giving
> this message just before it dies:
>
> kernel:[ 296.013011] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:0]
>
> This happens only on high i/o load.
> The other virtual machines are all running with no problems.
> What should I do?
>
> luciano.

Have you tried upgrading to the kernel from chimaera-backports?

Add sources for backports repository from https://www.devuan.org/os/packages and then `apt-get update && apt-get install -t chimaera-backports linux-image-amd64` should do it.