[PLUG] system hangs with two DFE-580TX cards

[Matt Clay]

Hello,

I'm trying to build a Linux system with two DFE-580TX cards in it 
(D-Link 4-Port ethernet cards).  I'm using version 1.09 of the 
"sundance.o" driver, which seems to detect both cards properly.  I can 
bring up interfaces on either card, and as long as I only use interfaces 
on one card, things seem to work ok.  If I try to use interfaces on both 
cards, the system hangs completely -- no errors, no kernel panic.

The system assigns 4 different IRQ's to the cards, one to each port. 
 Then it assigns the same 4 IRQ's to the other card.  I have forced the 
system to use 1 IRQ for each card, but that doesn't help.  I also tried 
1 IRQ for all ports on both cards.

I've tried moving cards around, changing out memory, compiling the 
kernel with debugging support, but nothing seems to help.

Any ideas?

 - Matt