>>>>> "Manuel" == Manuel Bouyer <bouyer@antioche.eu.org> writes:

    Manuel> Can you try to compile with DDB and see where it fails ?

Sure:

NetBSD 1.5ZA (PCC3PO) #0: Mon Jan 14 21:44:38 MET 2002
    root@lwle5:/usr/src/sys/arch/i386/compile/PCC3PO
cpu0: Intel 486DX (486-class)
total memory = 36480 KB
avail memory = 31192 KB
using 481 buffers containing 1924 KB of memory
mainbus0 (root)
isa0 at mainbus0
com0 at isa0 port 0x3f8-0x3ff irq 4: ns8250 or ns16450, no fifo
com0: console
com1 at isa0 port 0x2f8-0x2ff irq 3: ns8250 or ns16450, no fifo
pckbc0 at isa0 port 0x60-0x64
uvm_fault(0xc02eb480, 0x0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped in pid 0 (swapper) at   __wdcwait_reset+0x17:   testb   $0x20,      0x2d
(%eax)
db> t
__wdcwait_reset(c0354bc4,3,c0354b90,c0107af6,a) at __wdcwait_reset+0x17
wdcprobe(c0354bc4,1,c0354be0,c0106c34,0) at wdcprobe+0x20c
wdc_isa_probe(c044ae80,c02c0e98,c0354cf4,c024c190) at wdc_isa_probe+0xb9
isasearch(c044ae80,c02c0e98,0,10,c02c0e24) at isasearch+0xd6
mapply(c0354d8c,c02c0e98,c0354da0,c024c615) at mapply+0x20
config_search(c024c39c,c044ae80,0,c044ae80,c044ae80) at config_search+0x70
isaattach(c0458fc0,c044ae80,c02cabf8,c0135de0,c044ae80,c02cabf8,c0458fd4,c013591
0) at isaattach+0x90
config_attach(c0458fc0,c02c0fb0,c02cabf8,c024bdd8,c0458fc0) at config_attach+0x2
68
config_found_sm(c0458fc0,c02cabf8,c024bdd8,0,c0458fc0) at config_found_sm+0x2f
mainbus_attach(0,c0458fc0,0,c0135de0,c0458fc0,0,7,c01359a7) at mainbus_attach+0x
8e
config_attach(0,c02c0f94,0,0,c02eddd8) at config_attach+0x268
config_rootfound(c02ace29,0,c0354f60,c02309c4) at config_rootfound+0x3f
cpu_configure(9,c02eb560,c02eb768,c0123125,c02eb560) at cpu_configure+0x1f
configure(c0352010,352000,359000,100007ff,c03c) at configure+0x49
main(0,0,0,0,0) at main+0x36d