After upgrading to Fedora 38 my system failed to boot. An on-screen Stack Trace was the result, headed by the line:

device-mapper:cache: bad config value for cleaner: 1

This was clearly not a kernel problem, because the same kernel for Fedora 37 was still booting fine. Must be a userspace problem, possbly dracut but more likely lvm.

After removing a cachesettings "cleaner=1" the system was able to boot again. Unfortunately this was not trivial, both these failed:

lvchange --cachesettings "" /dev/base/lukscache
lvchange --cachesettings "default" /dev/base/lukscache

The only way to fix this was:
- vgcfgbackup
- remove the cleaner=0 setting in the backup file
- vgcfgrestore

Reproducible: Always

Steps to Reproduce:
1. Have a running Fedora 37 systeme with lvm-cache with cachesettings "cleaner=1"
2. Upgrade to Fedora 38
3. Try to boot
Actual Results:  
Boot failure

Expected Results:  
Booting system

For me this is no urgent matter because all is working again, but a less knowledgeable user may be stuck with a broken system.