When I re-boot I get the message
“A problem in the kernel package has been detected”.

I am asked if I want to report this, to which I respond in the affirmative;
but I have no idea where this report goes, or if it can be read in some way.

The boot continues, and the system seems to work, although on the last occasion it failed after 2 days, and I was unable to re-boot it, so had to re-install it (from the KDE LiveCD).