Where is a list of kernel messages ?

["C.T.F. Jansen" <frank.jansen@actrix.gen.nz>]

Greetings,

Where is there a list of linux kernel messages ?
So far not found on :

     - google
     - Debian linux or kernel documentation, specifically linux-doc etc.
             - not seem in /usr/share/doc

     - www.kernel.org

If they are there then it's time for the discovery process to be shortened.

Two messages that I'm interested in are :

   kernel: [ 6997.564065] sd 3:0:0:0: [sdc] tag#3 data cmplt err -71 
uas-tag 4 inflight: CMD

   kernel: [ 6997.564108] usb 2-1.4: stat urb: status -71

The machine currently has  Debian 9 and a new disk dock and new internal 
hard disk set to go in the disk dock.
The messages may be a result of the OS being too back level for the 
newer hardware. A Debian 11 implementation is in process.

Thanks.

frank.jansen@actrix.gen.nz, ZL2TTS