mhitch@lightning.msu.montana.edu said:
>  when it fails, it logged several stray interrupts

I don't know too much about the hardware, but assuming there
is a card interrupt not handled properly, you could
print out the last value of "stat" in ex_intr() if the
interrupt handler is left with the return value 0.
That's what I'd do at least. (if the interrupt is not
shared, otherwise it could get noisy)

best regards
Matthias