Comment 3 for bug 1976248

Enabled jammy-updates, jammy-proposed, kinetic, kinetic-proposed, on a power9 instance.

Attempted to install zfs-dkms from kinetic-proposed, as it now checks and requires for mmu_feature_keys to be exported on powerpc.

installed 5.15.0-40-generic abi to observe the issue:

checking whether __copy_from_user_inatomic is available... no
configure: error:
 *** The `__copy_from_user_inatomic()` Linux kernel function is
 *** incompatible with the CDDL license and will prevent the module
 *** linking stage from succeeding. OpenZFS cannot be compiled.

...
Error! Bad return status for module build on kernel: 5.15.0-40-generic (ppc64le)
Consult /var/lib/dkms/zfs/2.1.4/build/make.log for more information.

Then went to upgrade to 5.15.0-41-generic abi:

...
checking whether __copy_from_user_inatomic is available... yes
...

zfs.ko:
Running module version sanity check.
 - Original module
 - Installation
   - Installing to /lib/modules/5.15.0-41-generic/updates/dkms/

$ sudo dkms status
zfs/2.1.4, 5.15.0-41-generic, ppc64le: installed

Rebooted:

$ uname -r
5.15.0-41-generic

$ cat /sys/module/zfs/version
2.1.4-0ubuntu2

All is good, and zfs is working, lxd is working.

Kernel in jammy verified.