shared irqs and freebsd

Derek Ragona derek at
Tue Feb 28 11:39:10 PST 2006

Shared irq's are a hardware and motherboard issue, not a operating system 
issue.  You have to be able to setup your hardware NOT to use shared IRQ's 
if you can.

This has been a problem on PC's since the first IBM PC rolled out, and 
still continues today.  That is why special multiport cards were created to 
manage multiple resources on a single card/interrupt.  In the dark ages 
that meant multiple port serial cards to run terminals on, etc.


At 10:29 AM 2/28/2006, gahn wrote:
>How goes FreeBSD deal with shared irqs? Looks like
>FreeBSD could only work with two nic's (the same exact
>I am running 5.4 and trying to install three or four
>cards (the same exact type) in one machine.
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