panic while booting

[Alexander Polakov]

When the system was booting I accidently pressed a key on the
keyboard, that's it:

Fatal trap 12: page fault while in kernel mode
fault virtual address: 0x0
fault code: supervisor read, page not present
instruction pointer = 0x8: 0xc037ec4c
stack pointer = 0x10: 0xcc029ce4
frame pointer = 0x10: 0xcc029cf8
code segment = base 0x0, limit 0xfffff, type 0x1b
                        = DPL0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = Idle
current thread = pri 60 (CRIT)
kernel: type 12 trap, code = 0
Stopped at sckbdevent+0x58: movl 0(%edx, %eax, 4),%eax

db> tr
sckbdevent(c04a02e0,0,04a7c00) at sckbdevent+0x58
atkbd_intr(c04a02e0,0) at atkbd_intr+0x20
atkbd_isa_intr(c04a02e0,0) at akbd_isa_intr+0x16
ithread_handler(1,0,0,0,0) at ithread_handler+0xa2
lwkt_exit() at lwkt_exit
db> ps
pid   lwp             uid ppid pgrp  pflag      lflag      stat  wmesg
wchan cmd
1      c7779cb0  0    0      0       000200  00000   1 1
           swapper
0      c0449360  0    0      0       000200  00000   2 3  ATA request
completion wait cc1c9648 swapper