> So what did i do ?, i hard coded irq to 3 in 
> dev/isa/i82365_isasubr.c:pcic_isa_chip_intr_establish after isa_intr_alloc().
> And it 
> worked. Adding a printf at dp8390_intr verified that it was now interrupting.

Maybe read "man options", search for "isa-specific Options" and experiment
with PCIC_ISA_INTR_ALLOC_MASK?

Martin