On Wed, 2012-04-25 at 10:00 -0500, Larry Finger wrote:

After a few tries, I managed to change over to pata_macio.
Fortunately, most of 
the system used dev-by-id or UUID, thus most of the process was
getting all the 
kernel pieces built in.

Unfortunately, the original problem remains. I have resumed the
bisecting - only 
11 steps to go. I should have it by Friday! :)

Thanks !

Do we know what the bad interrupt maps to ? Also what is the value of
NR_IRQ and do you have SPARSE_IRQ enabled ? Can you try with the latter
disabled and NR_IRQ set to something large, such as 128 ?

(You may be able to check the interrupt mapping in debugfs)

Cheers,
Ben.