Re: 2.6.0-test3-mm3 reserve IRQ for isapnp

Adam Belay
2003-08-21T02:35:26Z

On Wed, Aug 20, 2003 at 06:25:59PM -0500, Wes Janzen wrote:
> So sad... Ever since I started with kernel 2.5.69, the kernel has been
> properly reserving IRQ 5 for ISA, as set in my BIOS.

The reserve IRQ feature in your BIOS should not effect the linux kernel.
It is strictly internal to your BIOS. Therefore if linux assigns
resources it probably won't reserve irq 5. This problem may be the
result of a change in the way linux assigns resources.

>
> Unfortunately for me, it looks like 2.6.0-test3-mm3 is like 2.4.18 and

In what kernel version did you first see this problem?

> ignores my BIOS settings, so it locks up trying to ativate my SB16 on
> boot (since IRQ 5 is used for IDE). Oddly it doesn't spit out any
> warnings, just locks up after "pnp: Device 00:01.03 activated".

I'd imagine this is the result of the resource conflict, presumably with
your ide controller. More information would be needed. I'd like to see
/proc/interrupts, dmesg, and lspci -vv (when the sb driver is not loaded).

Also, are you using acpi? If so, try the kernel parameter pci=noacpi and
also try disabling acpi completely.

Thanks,
Adam