trap:4 (4150): protection fault booting from floppy30.fs

[Joan Picanyol <joan@biaix.org>]

Hi,

When trying to install OpenBSD on a Pentium 133 (PhoenixBIOS 4.04) I get:

trap: 4(4150): protection fault
cn_tab=0x4b040
eax	6	ecx	90000   edx 534d4150    ebx 1689
esp	ff28	ebp	ffa0    esi 0		edi 8
eip	43d7f	eflags	10006	cs  8		ss  10
ds	10	es	10	fs  10		gs  10

Code dump [0x43d7f]:
a10fa90f 7a10fa9 1f07a10f 611f07a1 cf611f07 90cf611f 5890cf61 5e5d90cf

Memory dump [0x1a000]:
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0

Stack trace [0xff28]:
4 50000000 41500000 415000 4150 7f000041 3d7f0000 43d7f00
43d7f 800043d 80004 800 8 6000000 60000 1000600
10006 50000100 41500001 4d415000 534d4150 10534d41 10534d 1053
10 10000000 100000 1000 10 10000000 100000 1000
10 8000000 80000 800 8 0 0 0
0 a0000000 ffa00000 ffa000 ffa0 6c0000ff ff6c0000 ff6c00

This happens both with floppy30.fs and floppy29.fs, right after 
reading boot.......

Any hints as to what might solve this?

tks
-- 
pica