PROBLEM: UBSAN enabled in 5.14 and 5.13.14 kernels leads to kernel crash

[Paolo Pisati]

On Sat, Sep 04, 2021 at 08:20:31PM +0000, Andrew Moes wrote:
>    Hi,
> 
>    Problematic
>    change: [1]https://lists.ubuntu.com/archives/kernel-team/2021-August/12
>    3425.html
> 
>    Affected kernels: 5.14, 5.14.1 and 5.13.14
> 
>    Last working kernel: 5.13.13
> 
>    Problem statement:
> 
>    The server with NVDIMMs won't boot throwing lots of misleading errors.

Hi Andrew,

your issue looks very similar to LP1942215[1]: can you install the test kernel
provided in #12 and follow up with your results there?

Thank you.

1: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942215
-- 
bye,
p.