Created attachment 872149 [details]
Screen photos showing kernel oops and systemd output.

Since the update to kernel 5.14.21-150500.55.44-default, I experience a
spontaneous kernel bug during boot (for the first time on Monday 2024-Jan-22).
This did not happen with kernel 5.14.21-150500.55.39-default or the kernels
before. This bug appears in about 50% of all starts.

This is the sequence of actions:

* I power-on my Laptop (Lenovo 20QN-005YGE "P53", NVIDIA GPU) with USB-C
docking station connected.
* I get the Grub2 menu and let it start the default entry.
* I get the usual green text screen to enter the password to decrypt the disk
and enter the phrase (see img_1.jpg).
* A moment later I see the green kernel oops message (attached as screen photo
img_2.jpg).
* When I press a key, I can see that systemd got to the point where it wanted
to decrypt the disk but then hangs in a filesystem check (see img_4.jpg).
* I power my Laptop off (waiting for 15 minutes has no effect).

I "believe" the system fails to mount "/" and "/home". Consequently, I cannot
find any entry of this oops or the boot at all in /var/log/messages, the
journal or with "last".

Workaround:

* In the Grub2 menu, I choose the "Advanced" entry and boot kernel
5.14.21-150500.55.39-default.

* In /etc/zypp/zypp.conf I changed one line 

      multiversion.kernels = latest,latest-1,running

  to

      multiversion.kernels = latest,latest-1,running,5.14.21-150500.55.39

  in order to prevent the "good" Kernel from beeing deleted.