Intel SRCU31 - i2o_core hangs

hardware: intel sbt2, 2 x pIII xeon, intel srcu31 raid controller
os: rh 6.2
kernel: 2.4.17

modprobe i2o_block (inmod i2o_core) & computer hangs, i have rewrite it from a screen:

Unabel to handle kernel paging request at virtual address 0009f808 printong eip:
f8895f5f
*pde = 00000000

Oops: 0000
CPU: 1
EIP: 0010:[<f8895f5f>] not tainted
EFLAGS: 00010206
...
Call Trace: [<f88930fc>] [<c0108488>] [<c0108679>] [<c0105200>]

[<c0105200>] [<c010a718>] [<c0105200>] [<c0105200>] [<c01052cc>] [<c0105292>]
[<c0115a8e>]
...
<0>Kernel panic: Aiee, killing interupt handler!
In interupt handler - not syncing

now computer hangs
is it hardware or software problem ?
i have no idea what's going on

It works with the RH shipped 2.4.9. It may work with 2.4.18pre3-ac2/2.4.18pre4 as I sent Marcelo a possibl fix