Re: reassigning IRQs for specific PCI slots...

From: Zwane Mwaikambo
Date: Thu Nov 06 2003 - 13:13:02 EST

On Thu, 6 Nov 2003, Robert Bird wrote:

> We are trying to use RTLinux thread to service a PCI-based multi-port
> serial card. I have read several documents regarding "sharing IRQs",
> using boot-prompt parameters, IO-APIC.txt, etc. I am being told by the
> RTLinux community that I must not share interrupts when using real-time
> thread to service a PCI-based function. I have tried using several
> combinations of boot-prompt parameters (we are using GRUB) but have had
> no success in redirecting IRQ assignment during boot-time!

If you don't have the option to assign irqs to specific slots in the BIOS
you can try shuffling PCI adapters around. I take it you don't have an
IOAPIC on the board?

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