Some more updates ....
Did this start after upgrading to 22.04? Or after a certain kernel
upgrade?
For sure it only started with Ubuntu 22.04. We did not had and still
not have any issues on servers with Ubuntu 20.04 and 18.04.
It also happens with Ubuntu 22.10 (Kernel 5.19.0-23-generic). We now try
6.0 mainline and 5.15. mainline kernel on some servers.
I also forgot to mention that /var/lib/postgresql/12 directory is
encrypted with fscrypt (ext4 encryption). So we also deactivated the
directory encryption on one server to see if it is related to
encryption.
thanks
Klaus
