A little more on the messages:
Freeing unused kernel memory : 152k freed
Write protecting the kernel read-only data : 274k
Recusive die() failure, output suppressed
Kernel panic - not syncing : Attemped to kill init!
BUG : unable to handle kernel paging request at virtual address c02a701c
printing eip:
c012cc34
*pgd = 345063
*pmd = 345063
*pte = 2a7161
During the bootup it seems the keyboard has some influence on the actual errors produced (the first time the Freeing kernel memory messages had already disappeared from the screen.
Following the above message similar messages appeared with address c02a8078 instead of c02a701c and *pte 2a8161.
Hope this helps.
Pc is an Epia M10000 with C3 Nehemiah and 256MB memory.