I'm working on porting a driver ("wcfxo") from FreeBSD for Digium X100P 
boards (and clones) for use with the Asterisk PBX (www.asterisk.org), 
and I'm having what appear to be interrupt-related problems - namely, 
I'm not getting any from the board most of the time.  Under FreeBSD, it 
works most of the time on the same motherboard, though I _have_ gotten 
it to fail in a similar way, namely that the interrupt routine never 
gets called.  _Once_ (and never again), I managed to get it booted in 
such a way under NetBSD that I was getting interrupts.

I've twiddled various PCI interrupt settings on my motherboard, but I 
haven't gotten a single setting that seems to work much better than 
others - in some slots, the card gets its own irq, in others it shares 
with (for example) the onboard IDE controller - it seems to work better 
under FreeBSD with the non-shared slot, but I can't reliably get it to 
fail under FreeBSD or work under NetBSD.  :(

Would someone be willing to help me out a bit here - make some 
suggestions of things to try in the BIOS, look at code and suggest 
changes?  Interestingly enough, in one of my systems (dual p3 with 
serverworks chipset), having one of these cards installed makes the BIOS 
screen not even come up.  :/  (I have two of them, they both act the 
same - they're both the same manufacturer, though)

I realize there isn't much detail in this post - I've been banging my 
head against this for a couple days and can't figure out what I might be 
doing wrong. 

Thanks,
+j