irq_vector is indexed by a value that can be as large as the sum of all the 
RTEs in all the I/O APICs.  On a 32-way x445 or a 16-way x440 with PCI 
expansion boxes, the static array will overflow.

Type changed to u8 because that's how big a vector number is.  That should 
please the embedded folks.

Because the fixmaps for I/O APICs aren't ready, I had to map them myself.

-- 
James Cleverdon
IBM xSeries Linux Solutions
{jamesclv(Unix, preferred), cleverdj(Notes)} at us dot ibm dot comm